Tuesday, October 2, 2018

Four Tips for Relief From Eye Strain

In today's world, it's virtually impossible to get through life without interacting with a computer, phone, or television screen. However, too much screen time can lead to strain and fatigue on the eye muscles, according to CBS, which also reports that 61 percent of Americans look at screens for five or more hours a day. In a world where screen time is a necessary evil, these tips can help to reduce eye strain.

Use the 20-20-20 Rule 
Three people looking at a screen


It's helpful to take extended breaks from screens, but for those whose daily work involves computers, that isn't easy. Instead, use the 20-20-20 rule: for every 20 minutes of prolonged screen time, take a 20-second break and look at something 20 feet away. This can give the eyes rest without affecting productivity.

Blink Early and Often


According to Dr. Christopher Starr, an associate professor of ophthalmology at Weill Cornell Medical College who spoke with CBS, blinking can greatly reduce eye strain. This is particularly important to keep in mind when watching television, reading, or performing any other task that involves staring at a screen for a prolonged period of time. Dr. Starr notes that keeping the eyes open causes tears to evaporate quickly, leading to redness and pain that can worsen as the day goes on. Therefore, it's important to stay mindful and keep blinking when using a screen, especially for those wearing contact lenses that may exacerbate eye dryness.

Schedule an Annual Eye Exam


According to Time Magazine, about 71 percent of people who experience symptoms of computer vision syndrome, or CVS, wear eyeglasses or contact lenses. To reduce eye strain, it's vital to ensure one's prescription is accurate. The National Institute of Occupational Safety and Health recommends that computer users should have an annual eye exam. Patients should take this time to discuss their screen use with an optometrist.

Stay on Top of Vitamins


Regardless of overall screen time, getting the right amount of vitamins and minerals can affect eye health and performance. Vitamins A, C, E, B, and the mineral Zinc have been found to play crucial roles in eye health. These can be easily found in multivitamins or by eating a diet rich in vegetables and lean proteins.

If this is still a concern, the doctors at Excellent Vision have years of experience treating eye strain and other ocular issues. Contact us today to schedule a consultation!

Wednesday, September 5, 2018

Astigmatism 101: Causes, Risk Factors, and Treatment

Image of a young girl wearing glasses
Astigmatism is a common vision problem that can cause eyesight to become blurry, fuzzy, or distorted. This happens when either the cornea or the lens of the eye is misshapen, preventing light rays from being properly refracted. This causes many people to experience squinting, eyestrain, headaches, and eye irritation, in addition to blurry vision at any distance. Fortunately, the prognosis for many patients diagnosed with astigmatism is good.

Causes and Risk Factors for Astigmatism


While scientists know that an irregularly shaped cornea or lens causes the symptoms of astigmatism, what actually causes that irregularity is unknown. Often, people who develop it are born with it, and according to the American Academy of Ophthalmology, the risk for developing it is inherited. Astigmatism can also occur as a result of an eye injury, surgery, or disease. But contrary to popular belief, squinting, reading in poor light, sitting too close to the TV, and similar activities do not cause astigmatism.

While many people are born with astigmatism, it can develop at any time during childhood or adulthood. Those at highest risk have a family history of astigmatism or other conditions of the eye. Additional risk factors include thinning or scarring of the cornea, a history of cataract surgery or other eye surgeries in the family, and excessive nearsightedness or farsightedness, which lead to blurred vision.

Astigmatism Treatment


Although the cause of the misshapen cornea or lens isn’t known, ophthalmologists can offer patients a great outlook when it comes to treating the condition. In mild cases, no treatment is needed at all, but astigmatism does need to be addressed when it begins affecting vision. Treatment usually includes corrective lenses like glasses or contact lenses , although some patients may benefit from Ortho-K, specially designed lenses that temporarily correct the problem when worn. In severe cases, patients may need to undergo surgery to reshape the cornea for a permanent correction.

See Your Doctor


The optometrists and ophthalmologists at Excellent Vision have helped countless patients treat their blurry vision and eyestrain caused by astigmatism. If you have been experiencing fuzzy eyesight, eye irritation, or difficulty seeing at night, call us at 603-430-5225 to schedule an appointment at a location near you.

Wednesday, August 8, 2018

How Vitamins and Supplements Can Promote Eye Health

Image of various pills
For most people, vitamin deficiency isn’t enough to cause a severe vision problem, and a supplement can’t necessarily stop an eye problem from developing. Still, deficiency of certain vitamins can affect eye health, and for patients with a family history of cataracts and other eye problems, loading up on the vitamins might not hurt.

Lutein and Zeaxanthin


Lutein and zeaxanthin are antioxidants located in the eye, and they may help reduce the risk of chronic eye diseases, according to the American Optometric Association. They filter out harmful light rays to protect and maintain healthy cells. They also help prevent oxidation of the lens, which can lead to cataracts. Plus, researchers with the Age-Related Eye Disease Study 2 (part of the National Eye Institute) determined that high concentrations of these vitamins may help slow the progression of age-related macular degeneration (AMD). However, there was no evidence that these supplements could completely prevent macular degeneration. Since the body does not naturally produce lutein or zeaxanthin, they can be taken through supplements or leafy greens like spinach or kale, egg yolks, and other fruits and vegetables.

Other Vitamins for Eye Health


Vitamin A is probably the most famous vitamin for eye health; it’s the reason why so many parents encourage children to eat their carrots. Vitamin A can contribute to eye health and help people with AMD and cataracts, and rhodopsin—also found in carrots—promotes better vision in low-light situations. Vitamin C provides crucial antioxidants, can help slow the progression of cataracts, and can provide vitamins for AMD patients, while Vitamin E adds an additional layer of protection against these eye conditions. Omega-3 fatty acids also promote eye health; while there’s no evidence that they can prevent or slow most conditions, researchers have found evidence that they may provide relief from symptoms of dry eye.

Eating healthy fruits and vegetables packed with lutein, zeaxanthin, and other vitamins won’t give you superpowers, but they certainly promote better vision and may help slow the progression of certain eye conditions. If you have a family history of eye problems, the physicians at Excellent Vision can help you create a diet or supplement plan that incorporates vitamins to promote eye health. Call us today at 603-430-5225 to schedule an appointment at one of our convenient locations!

Friday, July 13, 2018

Eye Vision Signals to Expect After Age 40

Starting in their early to mid-40s, adults may start to experience unfamiliar eye problems. These issues may develop organically, but there are also certain physical conditions that can increase your risk for vision problems, such as high blood pressure, diabetes, or a family history of glaucoma or macular degeneration. The same is true of high cholesterol, thyroid, anxiety, depression, and arthritis. Learn more about the eyesight difficulties that tend to develop in adults as our eyes continue to age.

Presbyopia 
An older man smiling


Thought to be caused by a gradual thickening of the natural lens inside the eye, presbyopia reduces eye elasticity. This means your eyes may encounter difficulty when reading, writing, or focusing on anything up close.

Presbyopia is fairly prevalent: a little over a decade ago, the U.S. Census Bureau reported that about 112 million Americans were presbyopic—a number expected to reach about 123 million in 2020. Although this widespread condition cannot be prevented or cured, eyeglasses with line-free multiple lenses usually provide clear vision at all distances.

Driver's Glare


When driving, the glare from oncoming headlines at night and sunlight reflecting from pavement or windshields during the day can become increasingly troublesome—and dangerous—as a person ages. Changes in the lens of an aging eye also can cause the light entering it to scatter instead of focusing precisely on the retina.

Increasing Eye Particles


As we age, we tend to see more spots or "floaters" in our eyes. These shadowy images are simply particles drifting in the fluid of the eye, and seeing these occasionally is normal. However, when a person suddenly begins to see an increasing number of floating particles along with bright flashing lights, an optometrist should be contacted immediately. This disturbance may signal a tear in the retina, which eventually could become detached if left untreated.

Declining Peripheral Vision


Losing vision on the side of one or both eyes may be an indication of glaucoma, during which a damaged optic nerve can no longer transmit visual images to the brain.

When any of these eye problems arises, the professionals at Excellent Vision excel at working with our patients ages 40 and up who have concerns about these or other eye issues. We provide the utmost in eye care for residents of Maine and New Hampshire, and we welcome you to see us for eye examinations, prescriptions, and contact lenses, among other services. Please call us at 603-430-5225 or fill out our contact form so we can help.

Tuesday, June 5, 2018

Our Eyes: Windows Into Overall Physical Health

Surprisingly, eye health is a focal indicator of one’s overall physical health and quality of life. From cancer to high blood pressure, diabetes to thyroid problems and more, a comprehensive examination of a patient's eyes can alert an ophthalmologist or optometrist to diseases previously undetected. Learn more about medical conditions linked to the eyes.

Skin Cancer 
A close up of a blue eye


A temporary eyelid sore may be harmless, but one that does not heal may indicate basal cell carcinoma, a form of skin cancer. The tumor is most commonly found on the lower eyelid, and loss of eyelashes can suggest malignancy. Although basal cell skin cancer is not usually fatal, it may reoccur after treatment or lead to other types of skin cancer. Look out for changes in the skin around the eyelid as an early indicator of basal cell carcinoma, such as a reddish nodule forming on the eyelid or changes in pigmentation.

Breast Cancer


Occasionally, the first sign of breast cancer arrives through a routine eye examination or changes in the quality of vision. Malignant, harmful tumors from the lung, breast, and elsewhere in the body can reach into and around the eyes. The tumors might never be detected until they affect vision, are noticed by the patient, or force the eye forward in its socket.

Thyroid Problems


Bulging eyes could indicate exophthalmos—an over-active thyroid gland issue known as Graves' disease. The Mayo Clinic estimates about 30 percent of individuals with Graves' disease show some signs of Graves' ophthalmopathy, an inflammation of the tissues and muscles around the eyes. Symptoms often are the loss of weight, an irregular or rapid pulse, and nervousness. Graves' disease, which is common among women and the elderly, is treatable.

Diabetes


When an ophthalmologist discovers miniature hemorrhages in the retina and yellowish sediments of blood fats, it could be a sign of diabetes. Consult with an ophthalmologist for a thorough examination—those with diabetes often develop diabetic retinopathy, a complication that can cause mild vision problems and even blindness. For a patient already diagnosed with the disease, he or she can be reassured by the National Eye Institute's statement that early detection and treatment of diabetes reduces the risk of blindness by 95 percent.

Autoimmune Disease


Drooping eyelids and pupils varying in size may indicate a life-threatening condition known as Horner syndrome. This autoimmune disease is sometimes associated with aneurysms and tumors in the neck. If you detect drooping eyelids or pupils, then immediate medical attention is necessary.

A regular comprehensive eye exam can help avoid eye damage and provide insight of overall physical health. Excellent Vision Eye offers unrivaled eye care to residents of Maine and New Hampshire, where our skilled doctors specialize in cataract surgeries using the latest in technology. Please call us at 603-430-5225 for an appointment or fill out our contact form to get started today!

Wednesday, May 9, 2018

Preventing the Spread of Pink Eye

Pink eye—the condition that causes itchy, infected, bloodshot eyes—is not only unpleasant to deal with but is also extremely contagious. Whether brought home from school by a child or passed around the office by a co-worker, anyone who catches pink eye should take extra care to avoid spreading it further.

What Is Pink Eye? 
A person with pink eye putting in eye drops


Pink eye, formally known as conjunctivitis, is inflammation and redness of the membranes that cover the whites of the eye and the inner eyelids. There are a number of causes of pink eye, with bacteria, viruses, and allergens, being the most common. But air pollution, chemical exposure, foreign materials in the eye, and improper wearing of contact lenses can all contribute to pink eye as well. That’s why it’s so important to follow the doctor’s instructions for taking out contact lenses every night! Pink eye caused by viruses and bacteria is highly contagious (which is why so many school-age children get it), but pink eye caused by environmental factors and eye irritants is not.

Preventing the Spread of Pink Eye


Pink eye is so contagious that it’s one of the most common reasons children miss school. According to the American Journal of Infection Control, more than 3 million school days are missed due to conjunctivitis annually. Anyone who goes to school or shows up to work with the condition risks quickly spreading it to the people around them, but some steps can be taken to prevent passing it on to others. After coming into contact with someone who is infected (or even with objects they’ve touched), hands should always be washed thoroughly with soap and warm water. People should be especially mindful of touching or rubbing their eyes, and parents or anyone else caring for someone with pink eye should wash their hands after helping apply eye drops, changing bedding, or coming into any physical contact with the affected person or their belongings.

Anyone who does get pink eye should frequently wash their hands or use hand sanitizer, especially immediately after touching their eyes. Glasses should be worn instead of contact lenses until cleared by a doctor, and no personal items, especially sunglasses, makeup, and pillows, should be shared. Swimming pools should also be avoided. Any discharge from the eye must be cleaned with washcloths or cotton balls that should then be washed or discarded. The affected person should avoid school or work for three to five days, if possible, to avoid spreading it to others while under treatment with antibiotics, eye drops, or ointments. Any items used while infected, like makeup, contact lens solution, and glasses, should be thrown away or thoroughly cleaned to avoid becoming re-infected. 

At Excellent Vision, our main concern is the health of your eyes. We offer ophthalmology and optometry services at three convenient locations around Portsmouth, New Hampshire to help our patients see more clearly. If you are experiencing symptoms of pink eye, call 603-430-5225 to schedule an appointment with our doctors! We can help you review the steps you need to take to make sure your eye care products aren't delaying your recovery from this frustrating condition.

Friday, April 6, 2018

Six Essential Eye Care Tips for People With Diabetes

Image of a doctor & patient
Type 2 diabetes affects many of the body's systems and organs, including the eyes. High blood sugar caused by diabetes can damage the eye's blood vessels, leading to diabetic retinopathy as well as a higher risk for glaucoma and cataracts. Those who have this chronic condition can take these six preventive steps to maintain good vision and protect the eyesight from the degenerative effects of diabetes.

Have Regular Eye Exams


An annual eye exam can assist with early diagnosis and treatment of issues caused by diabetes. This visit should include a dilated eye exam, in which drops are used to dilate the pupils and evaluate the condition of the tiny blood vessels in the eyes. Eye doctors may recommend more frequent appointments for those at high risk for eye problems.

Control Blood Sugar


High blood sugar is responsible for many problems associated with diabetes, including retinopathy (damage to the blood vessels of the eyes). Take steps to keep your blood sugar under 7 percent or at a number the doctor recommends. A quarterly A1C blood test can evaluate average blood sugar over a few months.

Manage Hypertension


Many people with diabetes struggle with high blood pressure, which can also cause eye damage. Have blood pressure checked regularly; it should ideally be under 140/90. Those with higher levels may need to control hypertension with medication and lifestyle changes, such as losing weight, limiting dietary salt and fat, and developing an exercise routine.

Eat a Nutritious Diet


Consuming plenty of fruits, vegetables, and whole grains leads to lower blood sugar and lower cholesterol, which can prevent damage to the blood vessels in the eyes. Limiting fatty and sugary foods can help lower cholesterol levels as well.

Quit Smoking


Smoking exacerbates the risk for eye problems since it also causes blood vessel damage. If you smoke, talk with a medical professional who can recommend strategies to help you quit.

Exercise Regularly


Keeping the body healthy limits the complications of diabetes. Most people should get at least 30 minutes of exercise each day, such as brisk walking or other activities that raise the heart rate.

Those who need regular eye exams to control diabetes-related problems can visit one of the three convenient Portsmouth-area locations of Excellent Vision. Our doctors provide diagnosis and treatment for a range of conditions, including low vision, cataracts, glaucoma, and diabetic retinopathy.

Monday, April 2, 2018

Are Cataracts Hereditary? Understanding Risk Factors

Cataracts are a gradual clouding of the eye's clear lens, causing blurred vision and difficulty seeing at night. Over time, the symptoms of this condition worsen and cause more serious vision problems, including light sensitivity, worsening eyesight, the appearance of halos around lights, faded colors, and even double vision. Cataracts tend to develop in response to age-related changes in the eye, but are cataracts hereditary?

Risk Factors for Cataracts 
Two woman, one younger and one older, posing for a photo


Although those who have a family history of cataracts are more likely to develop this condition, other risk factors also contribute. Cataracts are more common among people who are older than 60, are obese, smoke, have diabetes or high blood pressure, have been exposed to UV rays without eye protection, had a previous eye injury or surgery, drink alcohol excessively, or use corticosteroid medications. Keep in mind that cataracts are a very common condition, and they are even more common among those with a family history. According to the American Academy of Ophthalmology, more than half of Americans develop a cataract in at least one eye by age 80.

Preventing Cataracts


While it's impossible to influence a family history of cataracts, controlling other risk factors can help keep the eyes healthy. The following are some preventive measures to take:
  • Quitting smoking
  • Limiting alcohol to no more than one drink a day
  • Having regular eye exams
  • Managing chronic conditions like hypertension and diabetes
  • Eating a nutritious diet with plenty of fruits and vegetables, particularly those rich in antioxidants such as berries and leafy greens
  • Wearing sunglasses with UV protection when outdoors


Treatment Options for Patients With Cataracts


Those that are experiencing blurred vision and light sensitivity due to cataracts can dramatically improve their quality of vision through cataract surgery. The eye surgeon will remove the affected lens and replace it with a clear intraocular lens (IOL) implant to restore sight and reduce symptoms like blurriness. Cataract surgery is typically an outpatient procedure done under local anesthetic. Patients can return to normal activities within a day or two.

In the Portsmouth, NH area, trust the expertise of our doctors at Excellent Vision. In particular, our own Dr. Richard J. Lasonde specializes in cataract surgery and has helped thousands of patients achieve better vision through IOL implants. Those having problems with their eyesight can call us at 603-430-5225 for an appointment at one of our convenient locations in Maine and New Hampshire.

Tuesday, October 31, 2017

Understanding the Human Eye: How It Works

Most people go throughout their day being constantly bombarded with visual input, yet never stop to think about the amazing transformation this information must go through in order to be processed by the brain. None of it would be possible without one of the most complex organs in the body: the human eye. Through research in the field of optometry, people today have a much more accurate understanding of how this process works.

Understanding How the Eye Works 
A close up of a green eye in Portsmouth, NH


First, light travels through the cornea, which is the clear covering over the eye that acts as a window. The cornea bends the light, allowing it to pass through the narrow pupil. A lens behind the iris helps to either shorten or lengthen the light rays to ensure that the image is focused. The retina lies at the back of the eye. The light rays come to a point at the retina, which receives the crystal-clear image in its network of nerve cells, then transmits it to the optic nerve. The optic nerve carries the image to the brain. The most amazing part of this process is that it happens at lightning speed, over and over again throughout the day.

How to Care for the Eyes


With these incredible organs working overtime, it's important to take good care of them. The most important step in taking care of the eyes is scheduling regular checkups with an optometrist. This will help determine if there are any ongoing issues, and can hopefully help to detect issues early before they become more serious.

The eyes require certain nutrients to keep them healthy between checkups, so eating a well-balanced diet will help keep them healthy. Protecting the eyes from damage is also important. Sunglasses can help protect the eyes from the harmful UV rays found in sunlight, and safety glasses should be worn in hazardous conditions. Thanks to the wonders of optometry, the eyes can continue to process countless messages per day, all without people ever noticing. To keep your eyes healthy longer, contact Excellent Vision in Portsmouth today.

Friday, October 13, 2017

Tips for Reducing Damage From Computer & Phone Screens

In the modern world, it's nearly impossible to escape the glow of computer and phone screens. Whether for work, entertainment, communication, or all of the above, screens have become a ubiquitous feature of life in the 21st Century. All that time spent staring at a device or computer can place considerable strain on the eyes. Today's eye care requires consideration of the effect screens have on vision. Try these tips for reducing eyestrain. For more information, seek expert advice from the doctors at Excellent Vision.
Smart phone with news on it

Use Proper Lighting


While it's generally good to have abundant natural light in an office space, it can cause unnecessary strain on the eyes. Overhead fluorescent lights also cause glare which forces the cornea to take in more light than is healthy just to maintain focus. Try reducing outdoor light by drawing shades or blinds when working at the computer. If possible, place a workstation so that the windows are to the side, rather than directly in front of or behind the screen. Swap overhead lights out for floor lamps with shades that provide indirect lighting.

Take Breaks


Sometimes people get in the zone when they're working, and there's nothing wrong with that. Studies have shown, however, that eye care is greatly helped by taking frequent short breaks. Rather than one or two long breaks, workers who take five or more mini-breaks experience less eyestrain and maintain productivity.

Get a Regular Eye Exam


The surest way to avoid long-term damage to the eyes is to schedule a comprehensive eye exam. Individuals who spend more than six hours per day working at a screen should have their eyes checked at least once annually. During the eye exam, inform the doctor how much time is spent staring at a screen and ask for further tips on avoiding screen-based eyestrain.

The professionals at Excellent Vision have earned a reputation as leaders in Ophthalmology and Optometry in the Seacoast Region. For expert eye care and professionalism, visit Excellent Vision at any of our three locations.

Wednesday, September 6, 2017

What Is Glaucoma and How Is It Treated?

Glaucoma patient and nurse visiting at Excellent Vision in Portsmouth, NH
Glaucoma begins with fluid building up in the front of the eye. As the extra fluid increases pressure within the eye, the optic nerve is damaged. Although blindness from glaucoma often can be prevented by early treatment, the disease continues to be a leading cause of blindness for people over 60 years old. Glaucoma treatment includes eye drops, pills, laser treatment, and traditional surgery, or a combination of these methods.

Eye Drops


As stated by the Glaucoma Research Foundation, the pressure within the eye can be reduced by eye drops. Some types of drops achieve this by increasing drainage of fluid from the eye. Others help decrease the amount of fluid created in the eye. It is vital that all medications be taken precisely as prescribed.

Oral Medication


Pills, which may be prescribed in support of eye drops, also reduce the production of fluid within the eye. Since pills and eye drops are taken up to four times a day, all of the patient's doctors must be informed of these prescriptions to avoid potentially harmful interactions.

Laser Eye Surgery


Laser eye surgery has grown in popularity as a step in between medication and traditional surgery. The most frequent procedure for glaucoma treatment is a trabeculoplasty, which is painless and requires mere minutes in an outpatient facility or doctor's office. During the procedure, a beam of high-energy light is used to alter the eye's drainage system so that fluid is eliminated more efficiently. Usually, any complications from the laser are minimal.

Traditional Eye Surgery


If eye drops, pills, and laser surgery fail to decrease pressure within an eye, conventional eye surgery may be the only alternative. The most common of these surgeries is a trabeculectomy. During this procedure, the surgeon opens a passage in the white part of the eye to drain excess fluid, then creates a flap that allows fluid to escape without deflating the eyeball.

Additional types of laser and conventional surgeries are available, each one depending on the condition of the eye.

The specialists at Excellent Vision are here to help with your eye care and glaucoma treatment. Please call us at 603-430-5225 or complete our contact form to schedule an appointment.

Friday, July 21, 2017

Three Foods to Eat for Healthy Vision

Many people believe that maintaining good eye health is simply a matter of genetics. While there are hereditary traits that can give certain individuals an advantage over others, a healthy diet is also a significant component in preserving vision throughout a person's life. Here are three foods doctors recommend for healthy vision.

Carrots


An optometrist is checking eyes of a patientThis list begins with the food most commonly associated with excellent eyesight. Folk wisdom tells us that a steady diet of carrots is what gives rabbits such great vision. While this isn't entirely true (rabbits have good vision over distance, but the position of their eyes makes it hard to see things up close), it is scientifically accurate that carrots contain nutrients beneficial to the eyes. Carrots are an excellent source of beta-carotene, a type of vitamin A that gives them their orange color. Beta-carotene helps pack pigment into the retina, improving overall eyesight and especially night vision.

Spinach, Kale, and Other Leafy Greens


Spinach and kale are healthy foods that provide a wealth of benefits for the body as a whole. They're also rich in specific types of antioxidants that are especially beneficial for vision health. Spinach, kale, and other greens like broccoli are packed with lutein and zeaxanthin, two antioxidants that studies indicate may help prevent the development of cataracts, avoiding the need for cataract surgery later in life.

Salmon


It's not just vegetables that are necessary for preserving good vision. Salmon and other fish high in fat are an important source of omega-3 fatty acids. These same fatty acids are found in the retina, and a lack of them can cause dry eyes. An abundance of omega-3 fatty acids has also been shown to prevent inflammation, macular degeneration, and even cataracts. While salmon is a good option, look for other fish, like tuna, trout, sardines, and halibut, which are richer in omega-3s than a typical cod or haddock found just off Portsmouth's shores.

Maintaining healthy vision isn't just about the luck of the genomic draw. This list provides just a few of the foods people can eat to take care of their eyesight. Combining a healthy diet with regular optometry care will go a long way to preserving eye health and vision throughout a person's life. To schedule an eye exam, call Excellent Vision at 603-430-5225 today.

Thursday, June 22, 2017

The Effects of Sunlight on Eyes (and How to Protect Them)

Most people are aware that the sun can damage their eyes—or at least hurt them. The culprit is ultraviolet radiation, and its effects can damage eyes in the short-term and long-term, sometimes in unexpected ways.

UV Radiation in the Long-Term


Ultraviolet (UV) radiation exists in 3 forms: UVA, UVB, and UVC rays. The most damaging of the three is UVC, which is absorbed by the Earth's atmosphere. UVA rays cause damage to the retina (the light-sensitive membrane covering the back of the eye), although other parts of the eye absorb them as well. UVB rays are responsible for photokeratitis (a sort of sunburn of the cornea), cataracts, pterygium (a growth on the eye's surface), and a form of eye cancer called squamous cell carcinoma of the conjunctiva.
A girl is wearing black sunglasses

Damage in the Short-Term


While the aforementioned UV radiation can take years to show its effects, some damage can take effect almost immediately, such as photokeratitis and photoconjunctivitis (an inflammation similar to pink eye). The feeling of eye fatigue, soreness, and 'grittiness' after spending time on sand, snow, or water without eye protection is a result of UV radiation exposure.

Hidden Danger


Looking directly at the sun can damage the retina—hence the natural reaction to avert the eyes. UV damage can occur regardless of cloud cover or season of the year. In fact, fresh snow can reflect up to 80% of UV radiation. There is also no significant difference in time of day, although morning to mid-afternoon rays have been shown to be especially damaging.

How to Protect Eyes Against Damage


Sunglasses are often viewed as a fashion accessory, but their primary function is to protect eyes from harmful UV radiation. Eye protection is most beneficial when the lenses are gray and large enough to cover the eye completely. Wrap-around sunglasses are best. Some contact lenses provide a degree of UV protection, but most do not.

In addition to eye protection like sunglasses, ensuring proper sleep can help generate adequate lubrication to clear out irritants and repair daily damage. Call 603-430-5225 or contact your local eye care provider for further information.

Wednesday, May 17, 2017

Intraocular Lens Implants: What Are They?

When a cataract develops in an eye, the natural lens becomes cloudy, resulting in blurred vision. Fortunately, cataract surgery is a quick, simple process that can dramatically improve the lives of patients suffering from this condition.

An Effective Artificial Lens


When contact lenses or prescription glasses prove inadequate in correcting cloudy vision, the typical solution involves replacing the affected lens with a new, artificial one called an intraocular lens implant (IOL). These lens replacements focus light entering the eye through the cornea and pupil and onto the retina, where images are relayed to the brain. IOLs can solve multiple problems. They fix the visual impairment caused by cataracts and, in many cases, eliminate the need to wear prescription glasses, as they contain a patient's appropriate prescription. Some patients do, however, still benefit from reading glasses.

Made of Flexible Material 
Image of an eye after intraocular lens implant


IOLs are typically made of a soft and flexible silicone or acrylic. To protect eyes from the sun's ultraviolet (UV) rays, these implants are coated with a special material that blocks these light frequencies. During a procedure, a small insertion is made to remove the affected lens, and then the eye doctor rolls the implant into place. The process is quick, typically lasting less than half an hour.

Several Options Are Available


The monofocal IOL is commonly used with cataract surgery and, as the name indicates, has one focus distance. This focus is set to close, medium-range, or distance vision, with most people opting for distance-vision IOLs. Glasses are no longer needed for seeing objects at a distance, but reading glasses may be recommended for up-close work.

Another option is the multifocal IOL, also called accommodative lenses. These lenses provide different zones for near or far viewing. The brain learns how to automatically select the right zone for the situation at hand, such as driving or reading the newspaper.

Toric lenses are an excellent choice for people with significant astigmatism. This IOL compensates for the curvature of the eye, eliminating the image distortion that can result from astigmatism.

With so many options, it's a good idea to check with an ophthalmologist to determine the best approach. An eye doctor will inform patients of the pros and cons of each lens type so that they know exactly what to expect before and after the lens replacement procedure.

Friday, April 21, 2017

How Blue Light Damages the Eyes

Blue light is visible, high-energy light that increases memory, cognitive function, and alertness. By regulating the natural circadian rhythm of sleep and wakefulness cycles, blue light helps control the mood, memory, and hormonal balance of an individual.


Threats of Increasing Blue Light


About 30 percent of all visible light is high-energy visible (HEV) or "blue" light. While the primary source of blue light is the sun, experts in optometry express concerns about the rapid increase of manufactured blue light. Fluorescent and LED lights transmit significant levels of blue light, as do the screens of TVs, computers, smartphones, electronic notebooks, and other digital devices. In today's modern workforce, approximately 60 percent of people spend more than six hours a day in front of a digital device, which significantly increases exposure to blue light.


Dangers of Blue Light


Staring at screens all day and night creates unfocused visible "noise" that reduces contrast and leads to digital eye strain. Also, excess reading on a tablet computer at bedtime can disrupt the sleep cycle, leading to daytime fatigue. As a result, the cumulative effect of rising exposure to blue light indoors can damage the retina's light-sensitive cells, causing cataracts, and increasing the risks of macular degeneration. In fact, 70 percent of adults who regularly use media devices have reported symptoms of digital eye strain.

Schedule an appointment with an optometrist to discuss the type of filters or glasses best suited for protecting eyes against the threats and dangers of blue light.

Monday, March 20, 2017

4 Things You Didn't Know Your Eye Exam Checks For

Anyone who has had an eye exam knows that the eye doctor checks for healthy vision. However, most people don't know that a comprehensive eye exam can also reveal these other conditions.

1. Thyroid Disease


Bulging or protruding eyeballs are a symptom of thyroid disease, also known as Graves disease. An eye doctor may be able to diagnose this problem early to prevent it from worsening.

2. Diabetes


Diabetes may cause a condition known as diabetic retinopathy, in which capillaries in the eye release blood or a yellowish fluid. This will be easily visible during an eye exam.

3. High Cholesterol


High cholesterol can be diagnosed during an eye exam if the cornea is yellow or has a yellow ring around it. In addition, blood vessels in the retina may show plaque buildup.

4. Tumors


Believe it or not, an eye doctor may be able to detect tumors in the neck or brain from a simple eye exam. Early detection can be a lifesaver, so be sure to get your eyes checked regularly.

Wednesday, October 19, 2016

How Early Detection and Treatment Can Help to Prevent Blindness

Many people may not be aware of the several changes that occur while aging, and only a visit to an optician could help detect an underlying condition. The good news is that small preventive measures like eating greens and wearing sunglasses can help to protect a person's vision. But it is still necessary to pay a visit to the eye doctor for eye care services.

Commonly Detected Vision Problems


Glaucoma and diabetic eye are some of the problems that could potentially lead to eye blindness if a victim does not seek early treatment. Today, glaucoma affects more than three million Americans and early diagnosis is the key to preventing permanent blindness, as stated by the National Eye Health Education Program. It causes blindness by destroying the optic nerves of the eye. The baseline for regular eye exams is age 40.

Smokers Can Get Help Too


Smokers are exposed to cyanide, which travels through the bloodstream to the eyes where it can destroy cells. This increases the risk of developing cataracts and eye dryness. It also increases the chances for experiencing macular degeneration, which is incurable and destroys one's vision. With regular checkups and treatments by eye doctors, smokers can avoid getting these eye problems.

Friday, September 30, 2016

What is Glaucoma and How Does it Occur?

Glaucoma is a disease that damages the eye’s optic nerve. A human eye contains an intraocular fluid, which is created, circulated, and then finally excreted before the process begins again. If an imbalance occurs between the intraocular fluid produced and the amount that drains away, eye diseases such as glaucoma can develop, resulting in a loss of vision.

To get a better understanding of the importance of this fluid in the eye, one can compare the eye to a soccer ball. For a soccer ball to maintain its function, it must be filled with air. Just like a soccer ball, the eye also requires a certain amount of air pressure to keep its shape and to properly function.

There are a variety of issues which can affect an eye's ability to regulate intraocular fluid, including eye injuries, medical reactions, and abnormal blood vessel formation from diseases like diabetes. These issues can lead to a pressure change in the eye. If an eye is unable to regulate this itself, this pressure can push against nerve fibers, which can eventually damage the optic nerve.

However, it is also possible for glaucoma to occur when eye pressure is normal. Poor blood flow to the optic nerve may also be a cause. This happens when there is a narrowing of the blood vessels that nourishes the optic nerve.

Currently, there is no cure for glaucoma. Vision loss through the disease can’t be restored. For this reason, it is important to visit your ophthalmologist for a yearly screening. An early detection and treatment can help delay the progression of the disease.

Monday, July 18, 2016

How Do Cataracts Develop?

A cataract is a clouding of the normally clear lens of the eye, which can cause blurred vision. The development of cataracts is primarily age-related, but other diseases, such as diabetes, and lifestyle factors, such as smoking and alcohol use, can also play a role. Cataracts affect more than half of Americans by age 80, though some people in their 40s and 50s can develop age-related cataracts as well. They can occur in one or both eyes, but they do not spread from one eye to the other.

Patients with cataracts may experience blurry or clouded vision or poor night vision. Colors may seem tinted or faded, and they may notice excessive glare from headlights, lamps, or sunlight. They may also need frequent eyeglass prescription changes. These symptoms can be caused by other conditions as well, so patients should consult with an eye care professional if they experience them.

If a patient’s cataracts are advanced enough to interfere with daily life, cataract surgery may be recommended. Cataract surgery is one of the most common procedures performed in the United States with 90 percent of patients who undergo the procedure reporting improved vision afterward.

Wednesday, April 20, 2016

Facts You Should Know About Laser Cataract Surgery

Traditional cataract surgery is safe and effective, and now even more so with the option of laser surgery. There is no urgency to cataract surgery, but anyone with cataracts will not see very well until the cataracts are fixed, so it is a good idea to open up this discussion with your doctor.

The First Step


Discuss your concerns, apprehensions, and expectations about cataract surgery with a skilled cataract surgeon. In addition to answering your questions, he or she can outline a plan of surgery tailored to your specific needs.

Why Laser Cataract Surgery?


This state-of-the-art procedure delivers the best chances for success with minimal undesirable side effects.

Differences Between Traditional and Laser Cataract Surgery


Traditional cataract surgery employs an ultrasonic needle to remove a cataract through a tiny incision in the eye made by tiny blades. Laser cataract surgery uses a laser to create an opening in the lens without blades. Laser surgery increases precision and safety while also decreasing the time a surgeon spends inside the eye.

Cost of Cataract Surgery


Although quality laser cataract surgery is not cheap, it is affordable for most through various payment plans. However, if a quoted price sounds like a bargain, beware. You only have one pair of eyes. Don't place them at risk. Instead, fix them right the first time.