by admin | Mar 8, 2016 | Children's Vision |
Eye Exams for Children
As a parent, you may wonder whether your pre-schooler has a vision problem or when a first eye exam should be scheduled.
Eye exams for children are extremely important. Experts say 5% to 10% of pre-schoolers and 25% of school-aged children have vision problems. Early identification of a child’s vision problem is crucial because, if left untreated, some childhood vision problems can cause permanent vision loss.
When Should Kids Have Their Eyes Examined?
According to the American Optometric Association (AOA), infants should have their first comprehensive eye exam at 6 months of age. Children then should receive additional eye exams at 3 years of age, and just before they enter kindergarten or the first grade at about age 5 or 6.
For school-aged children, the AOA recommends an eye exam every two years if no vision correction is required. Children who need eyeglasses or contact lenses should be examined annually or according to their eye doctor’s recommendations.
Early eye exams also are important because children need the following basic visual skills for learning:
- Near vision
- Distance vision
- Eye teaming (binocularity) skills
- Eye movement skills
- Focusing skills
- Peripheral awareness
- Eye/hand coordination
Because of the importance of good vision for learning, some states require an eye exam for all children entering school for the first time.
Scheduling Your Child’s Eye Exam
Your family doctor or pediatrician likely will be the first medical professional to examine your child’s eyes. If eye problems are suspected during routine physical examinations, a referral might be made to an ophthalmologist or optometrist for further evaluation. Eye doctors have specific equipment and training to help them detect and diagnose potential vision problems.
When scheduling an eye exam, choose a time when your child is usually alert and happy. Specifics of how eye exams are conducted depend on your child’s age, but an exam generally will involve a case history, vision testing, determination of whether eyeglasses are needed, testing of eye alignment, an eye health examination and a consultation with you regarding the findings.
After you’ve made the appointment, you may be sent a case history form by mail, or you may be given one when you check in at the doctor’s office. The case history form will ask about your child’s birth history (also called perinatal history), such as birth weight and whether the child was full-term. Your eye doctor also may ask whether complications occurred during the pregnancy or delivery. The form will also inquire about your child’s medical history, including current medications and past or present allergies.
Be sure to tell your eye doctor if your child has a history of prematurity, has delayed motor development, engages in frequent eye rubbing, blinks excessively, fails to maintain eye contact, cannot seem to maintain a gaze (fixation) while looking at objects, has poor eye tracking skills or has failed a pediatrician or pre-school vision screening.
Your eye doctor will also want to know about previous ocular diagnoses and treatments involving your child, such as possible surgeries and glasses or contact lens wear. Be sure you inform your eye doctor if there is a family history of eye problems requiring vision correction, such as nearsightedness or farsightedness, misaligned eyes (strabismus) or amblyopia (“lazy eye”).
Eye Testing for Infants
It takes some time for a baby’s vision skills to develop. To assess whether your infant’s eyes are developing normally, your eye doctor may use one or more of the following tests:
- Tests of pupil responses evaluate whether the eye’s pupil opens and closes properly in the presence or absence of light.
- “Fixate and follow” testing determines whether your baby can fixate on an object (such as a light) and follow it as it moves. Infants should be able to perform this task quite well by the time they are 3 months old.
- Preferential looking involves using cards that are blank on one side with stripes on the other side to attract the gaze of an infant to the stripes. In this way, vision capabilities can be assessed.
Eye Testing for Pre-School Children
Pre-school children can have their eyes thoroughly tested even if they don’t yet know the alphabet or are too young or too shy to answer the doctor’s questions. Some common eye tests used specifically for young children include:
- LEA symbols for young children are similar to regular eye tests using charts with letters, except that special symbols in these tests include an apple, house, square and circle.
- Retinoscopy is a test that involves shining a light into the eye to observe how it reflects from the retina (the light-sensitive inner lining of the back of the eye). This test helps eye doctors determine the child’s eyeglass prescription.
- Random dot stereopsis uses dot patterns to determine how well the two eyes work as a team.
Eye and Vision Problems that Affect Children
Besides looking for nearsightedness, farsightedness and astigmatism (refractive errors), your eye doctor will examine your child’s eyes for signs of the following eye and vision problems commonly found in young children:
- Amblyopia. Also called “lazy eye,” this is decreased vision in one or both eyes despite the absence of any eye health problem or damage. Common causes of amblyopia include strabismus (see below) and a significant difference in the refractive errors of the two eyes. Treatment of amblyopia may include patching the dominant eye to strengthen the weaker eye.
- Strabismus. This is misalignment of the eyes, often caused by a congenital defect in the positioning or strength of muscles that are attached to the eye and control eye positioning and movement. Left untreated, strabismus can cause amblyopia in the misaligned eye. Depending on its cause and severity, surgery may be required to treat strabismus.
- Convergence insufficiency. This is the inability to keep the eye comfortably aligned for reading and other near tasks. Convergence insufficiency can often be treated successfully with vision therapy, a specific program of eye exercises.
- Focusing problems. Children with focusing problems (also called accommodation problems) may have trouble changing focus from distance to near and back again (accommodative infacility) or have problems maintaining adequate focus for reading (accommodative insufficiency). These problems often can be successfully treated with vision therapy.
- Eye teaming problems. Many eye teaming (binocularity) problems are more subtle than strabismus. Deficiencies in eye teaming skills can cause problems with depth perception and coordination.
Vision and Learning
Experts say that 80% of what your child learns in school is presented visually. Undetected vision problems can put them at a significant disadvantage. Be sure to schedule a complete eye exam for your child prior to the start of school.
Article ©2015 Access Media Group LLC. All rights reserved. Reproduction other than for one-time personal use is strictly prohibited.
by admin | Mar 8, 2016 | Eye Problems |
Dry Eye Syndrome
Dry eye syndrome (DES or dry eye) is a chronic lack of sufficient lubrication and moisture on the surface of the eye. Its consequences range from minor irritation to the inability to wear contact lenses and an increased risk of corneal inflammation and eye infections.
Signs and Symptoms of Dry Eye
Persistent dryness, scratchiness and a burning sensation on your eyes are common symptoms of dry eye syndrome. These symptoms alone may be enough for your eye doctor to diagnose dry eye syndrome. Sometimes, he or she may want to measure the amount of tears in your eyes. A thin strip of filter paper placed at the edge of the eye, called a Schirmer test, is one way of measuring this.
Some people with dry eyes also experience a “foreign body sensation” – the feeling that something is in the eye. And it may seem odd, but sometimes dry eye syndrome can cause watery eyes, because the excessive dryness works to overstimulate production of the watery component of your eye’s tears.
What Causes Dry Eyes?
In dry eye syndrome, the tear glands that moisturize the eye don’t produce enough tears, or the tears have a chemical composition that causes them to evaporate too quickly.
Dry eye syndrome has several causes. It occurs:
- As a part of the natural aging process, especially among women over age 40.
- As a side effect of many medications, such as antihistamines, antidepressants, certain blood pressure medicines, Parkinson’s medications and birth control pills.
- Because you live in a dry, dusty or windy climate with low humidity.
If your home or office has air conditioning or a dry heating system, that too can dry out your eyes. Another cause is insufficient blinking, such as when you’re staring at a computer screen all day.
Dry eyes are also associated with certain systemic diseases such as lupus, rheumatoid arthritis, rosacea or Sjogren’s Syndrome (a triad of dry eyes, dry mouth, and rheumatoid arthritis or lupus).
Long-term contact lens wear, incomplete closure of the eyelids, eyelid disease and a deficiency of the tear-producing glands are other causes.
Dry eye syndrome is more common in women, possibly due to hormone fluctuations. Recent research suggests that smoking, too, can increase your risk of dry eye syndrome. Dry eye has also been associated with incomplete lid closure following blepharoplasty – a popular cosmetic surgery to eliminate droopy eyelids.
Treatment for Dry Eye
Dry eye syndrome is an ongoing condition that treatments may be unable to cure. But the symptoms of dry eye – including dryness, scratchiness and burning – can usually be successfully managed.
Your eyecare practitioner may recommend artificial tears, which are lubricating eye drops that may alleviate the dry, scratchy feeling and foreign body sensation of dry eye. Prescription eye drops for dry eye go one step further: they help increase your tear production. In some cases, your doctor may also prescribe a steroid for more immediate short-term relief.
Another option for dry eye treatment involves a tiny insert filled with a lubricating ingredient. The insert is placed just inside the lower eyelid, where it continuously releases lubrication throughout the day.
If you wear contact lenses, be aware that many artificial tears cannot be used during contact lens wear. You may need to remove your lenses before using the drops. Wait 15 minutes or longer (check the label) before reinserting them. For mild dry eye, contact lens rewetting drops may be sufficient to make your eyes feel better, but the effect is usually only temporary. Switching to another lens brand could also help.
Check the label, but better yet, check with your doctor before buying any over-the-counter eye drops. Your eye doctor will know which formulas are effective and long-lasting and which are not, as well as which eye drops will work with your contact lenses.
To reduce the effects of sun, wind and dust on dry eyes, wear sunglasses when outdoors. Wraparound styles offer the best protection.
Indoors, an air cleaner can filter out dust and other particles from the air, while a humidifier adds moisture to air that’s too dry because of air conditioning or heating.
For more significant cases of dry eye, your eye doctor may recommend punctal plugs. These tiny devices are inserted in ducts in your lids to slow the drainage of tears away from your eyes, thereby keeping your eyes more moist.
If your dry eye is caused by meibomian gland dysfunction (MGD), your doctor may recommend warm compresses and suggest an in-office procedure to clear the blocked glands and restore normal function.
Doctors sometimes also recommend special nutritional supplements containing certain essential fatty acids to decrease dry eye symptoms. Drinking more water may also offer some relief.
If medications are the cause of dry eyes, discontinuing the drug generally resolves the problem. But in this case, the benefits of the drug must be weighed against the side effect of dry eyes. Sometimes switching to a different type of medication alleviates the dry eye symptoms while keeping the needed treatment. In any case, never switch or discontinue your medications without consulting with your doctor first.
Treating any underlying eyelid disease, such as blepharitis, helps as well. This may call for antibiotic or steroid drops, plus frequent eyelid scrubs with an antibacterial shampoo.
If you are considering LASIK, be aware that dry eyes may disqualify you for the surgery, at least until your dry eye condition is successfully treated. Dry eyes increase your risk for poor healing after LASIK, so most surgeons will want to treat the dry eyes first, to ensure a good LASIK outcome. This goes for other types of vision correction surgery, as well.
Article ©2015 Access Media Group LLC. All rights reserved. Reproduction other than for one-time personal use is strictly prohibited.
by admin | Mar 8, 2016 | Eye Problems, Uncategorized |
Eye Allergies
Similar to processes that occur with other types of allergic responses, the eye may overreact to a substance perceived as harmful even though it may not be. For example, dust that is harmless to most people can cause excessive tear production and mucus in eyes of overly sensitive, allergic individuals. Also, eye allergies are often hereditary.
The American College of Allergy, Asthma and Immunology estimates that 50 million people in the United States have seasonal allergies, and their prevalence is increasing — affecting up to 30 percent of adults and up to 40 percent of children. Allergies can trigger other problems, such as conjunctivitis (pink eye) and asthma. In fact, most Americans who suffer from allergies also have allergic conjunctivitis, according to the American Academy of Ophthalmology.
Allergy Signs and Symptoms
Common signs of allergies include: red, swollen, tearing or itchy eyes; runny nose; sneezing; coughing; difficulty breathing; itchy nose, mouth or throat, and headache from sinus congestion.
What Causes Eye Allergies?
Many allergens (substances that can evoke an allergic response) are in the air, where they come in contact with your eyes and nose. Airborne allergens include pollen, mold, dust and pet dander. Other causes of allergies, such as certain foods or bee stings, do not typically affect the eyes the way airborne allergens do. Adverse reactions to certain cosmetics or eye drops, including artificial tears that contain preservatives, also may cause eye allergies.
Eye Allergy Treatment
Avoidance. The most common “treatment” is to avoid what’s causing your eye allergy. If you have itchy eyes, try to keep your home free of pet dander and dust, and stay inside with the air conditioner on when a lot of pollen is in the air. If you have central air conditioning, use a high quality filter that can trap most airborne allergens, and replace it frequently.
Medications. If you’re not sure what’s causing your eye allergies, or you’re not having any luck avoiding them, your next step will probably be medication to alleviate the symptoms.
Over-the-counter and prescription medications each have their advantages; for example, over-the-counter products are often less expensive, while prescription ones are often stronger.
Eye drops are available as simple eye washes, or they may have one or more active ingredients such as antihistamines, decongestants or mast cell stabilizers.
Antihistamines relieve many symptoms caused by airborne allergens, such as itchy, watery eyes, runny nose and sneezing.
Decongestants clear up redness. They contain vasoconstrictors, which make the blood vessels in your eyes smaller, lessening the apparent redness. They treat the symptom, not the cause. In fact, with extended use, the blood vessels can become dependent on the vasoconstrictor to stay small. When you discontinue the eye drops, the vessels actually get bigger than they were in the first place. This process is called rebound hyperemia, and the result is that your red eyes worsen over time.
Some products have ingredients that act as mast cell stabilizers, which alleviate redness and swelling. Mast cell stabilizers are similar to antihistamines. But while antihistamines are known for their immediate relief, mast cell stabilizers are known for their long-lasting relief.
Other medications used for allergies include non-steroidal anti-inflammatory drugs (NSAIDs) orcorticosteroids. In some cases, combinations of medications may be used.
Immunotherapy. You may also benefit from immunotherapy, in which an allergy specialist injects you with small amounts of allergens to help your body gradually build up immunity to them.
Eye Allergies and Contact Lenses
Even if you are generally a successful contact lens wearer, allergy season can make your contacts uncomfortable. Airborne allergens can get on your lenses, causing discomfort. Allergens can also stimulate the excessive production of natural substances in your tears that bind to your contacts, adding to your discomfort and allergy symptoms.
Ask your eye doctor about eye drops that can help relieve your symptoms and keep your contact lenses clean. Certain drops can discolor or damage contact lenses, so ask your doctor first before trying out a new brand.
Another alternative is daily disposable contact lenses, which are discarded nightly. Because you replace them so frequently, these lenses are unlikely to develop irritating deposits that can build up over time and cause or heighten allergy-related discomfort.
Article ©2015 Access Media Group LLC. All rights reserved. Reproduction other than for one-time personal use is strictly prohibited.
by admin | Mar 8, 2016 | Eyes and Sports |
Contacts and Glasses That Enhance Performance
Good vision is critical for nearly every sport. To determine the effect of visual acuity on sports performance, British optometrist Geraint Griffiths and others tested the performance of Wimbledon tennis players and UK national clay pigeon shooting champions when their vision was blurred with special goggles. Overall, the tennis players and marksmen showed a 25% worsening of performance when their visual acuity was only slightly blurred by the goggles.
In addition to providing sharp vision, sports eyewear offers a number of additional benefits to help athletes and sports enthusiasts of all ages perform at their highest level:
Protection from Impact-Related Injuries
No one can perform at their best during sports if they are worrying about an injury. Compared with regular eyewear, sports eyewear offers a primary benefit of superior impact resistance and eye protection.
According to the American Academy of Ophthalmology, more than 42,000 sports-related eye injuries occur annually in the United States, and about 43% of those affected are children younger than 15.
Experts agree that many, if not most, of these injuries can be prevented with protective eyewear, such as safety goggles with polycarbonate lenses. Polycarbonate lenses are up to 10 times more impact-resistant than regular eyeglass lenses and can withstand impact from a ball or other projectile traveling at up to 90 miles per hour.
Contact lenses alone offer no protection from sports-related eye injuries, and regular eyeglasses designed for everyday wear are not strong enough nor are they designed to offer adequate eye protection during sports.
While safety eyewear should be considered for every activity that has the potential for eye injury, it is essential for the following sports: baseball, softball, basketball, hockey, football, handball, racquetball, squash, field hockey, lacrosse, soccer, swimming and pool sports, fishing, tennis and volleyball. Paintball “war games” are another activity for which safety eyewear is a must.
Protection from UV
Another danger during outdoor sports, even in winter, is ultraviolet (UV) radiation from the sun. Excessive exposure to UV rays has been associated with eye diseases such as cataracts and ocular tumors. You can also get a sunburn on your eye – called photokeratitis – which is very painful and can cause long-term damage to the cornea (the clear front surface of the eye).
Skiers should always wear tinted goggles or sports sunglasses that block 100% of the sun’s UV rays, since these harmful rays are stronger at higher altitudes. UV also bounces off snow (even on cloudy days) to increase one’s exposure. Anyone participating in outdoor water sports also needs UV protection, since UV rays reflect off bodies of water.
Some contact lenses offer UV protection. However, since contacts cover only the center part of your eye and can’t do anything for uncovered areas, you should still wear UV-blocking sunglasses, preferably with a close-fitting, wraparound style. Wide-brimmed hats are also helpful to reduce exposure of your eyes and face to UV rays.
Color Enhancement
In some lighting conditions, “keeping your eye on the ball” is not as easy as it sounds. Sports eyewear with special tints can help. Amber-colored “shooting glasses” are popular with hunters because they increase the contrast of birds, clay pigeons, etc. against an overcast sky.
In recent years, several eyeglass lens manufacturers have created special tints for sport sunglasses that increase contrast and improve visibility in a wide variety of indoor and outdoor lighting conditions. Your eye doctor or professional optician can show you samples of these lenses and help you decide which tints are best suited for your needs.
Light Control
Polarized sports sunglasses reduce glare from reflective surfaces, making them extremely beneficial for fishing and other water sports. They can also reduce glare from sunlight reflecting off a sandy beach or light-colored pavement, such as an outdoor basketball court.
Anti-reflective (AR) coating is another glare reducer. AR-coated sports glasses reduce lens reflections at night if you’re playing under bright lights. AR coating is also a good idea for the back surface of sport sunglasses. It reduces glare from “bounce-back” reflections that occur when sunlight hits the back of your lenses.
Photochromic lenses are another way to control light for optimum visibility and performance. These lenses darken automatically outdoors in response to UV rays from the sun. They reduce the intensity of light reaching your eyes to a more comfortable level and provide 100% UV protection at the same time.
Convenience and Comfort
Many people choose to wear contact lenses for sports, even if they prefer eyeglasses at work and for other daily activities. Contact lenses offer unobstructed peripheral vision and more natural-appearing vision, with no unwanted changes in image sizes that eyeglasses can sometimes produce.
One-day disposable soft contact lenses are an excellent option for sports, because they don’t require cleaning. You wear them just once and then throw them away. This makes them especially attractive to someone who normally wears eyeglasses.
And because they are made of a soft, oxygen-permeable material, one-day soft lenses require little or no adaptation. So even if you haven’t worn contact lenses for a week or longer, you can usually wear a pair of one-day disposable lenses comfortably for a full day of sports or other activities.
Remember, though contacts offer visual and other advantages over glasses for sports (you don’t have to worry about them fogging up or falling off when you’re perspiring, for example), you still need to wear protective eyewear over contact lenses to protect your eyes from injuries and/or UV damage.
Article ©2015 Access Media Group LLC. All rights reserved. Reproduction other than for one-time personal use is strictly prohibited.
by admin | Mar 8, 2016 | Computer Vision |
Computer Eyestrain: 10 Steps for Relief
With so many people using computers at work, eyestrain has become one of the leading office-related health complaints.
Experts estimate 50% to 90% of computer users experience some degree of eyestrain or other symptoms of computer vision syndrome (CVS) during their work day. Studies show eyestrain and CVS often cause fatigue, decreased productivity and more work errors.
So what can you do about it? Here are steps you (and your employer) can take to reduce computer eyestrain and the other common symptoms of computer vision syndrome (CVS):
1. Get a computer eye exam. This is the most important thing you can do to prevent computer vision problems. According to the National Institute of Occupational Safety and Health (NIOSH), computer users should have an eye exam before they start working on a computer and once yearly thereafter. Be sure to tell your eye doctor how often you use a computer at work and at home.
2. Use proper lighting. Computer eyestrain is often caused by excessively bright ambient lighting — either from outdoor sunlight coming in through a window or from harsh interior lighting. For the most comfortable computer use, ambient lighting should be about half as bright as that found in most offices.
If possible, reduce the brightness of interior lighting by using fewer fluorescent tubes in overhead light fixtures, or use lower intensity bulbs. Also try to position your monitor so that windows are to the side of it, instead of in front or back. You can also close curtains, shades and blinds to reduce the amount of sunlight at your workstation.
3. Minimize glare. Glare on walls and finished surfaces, as well as reflections on the computer screen, can also cause computer eyestrain. You may want to install an anti-glare screen on your monitor and, if possible, paint bright white walls a darker color with a matte finish.
Again, cover the windows. When outside light cannot be reduced, consider using a computer hood.
If you wear glasses, have an anti-reflective (AR) coating applied to your lenses. AR coating reduces glare by minimizing the amount of light reflecting off the front and back surfaces of your eyeglass lenses.
4. Upgrade your display. If you’ve not already done so, replace your old tube-style monitor (called a cathode ray tube or CRT) with a flat-panel liquid crystal display (LCD), like those on laptop computers.
LCD screens are easier on the eyes and usually have an anti-reflective surface. Old-fashioned CRT screens can cause a “flicker” of images on the screen. Even if this flicker is imperceptible, it can still contribute to eyestrain and fatigue during computer work.
If you still use a CRT, you can decrease eyestrain from flicker by increasing the refresh rate of your screen to 75 hertz (Hz) or higher. You can access this setting in the Control Panel of your computer.
When choosing a new flat panel display, select a screen with the highest resolution possible. Resolution is related to the “dot pitch” of the display. Generally, displays with a lower dot pitch have sharper images. Choose a display with a dot pitch of .28 mm or smaller.
Finally, choose a relatively large display. For a desktop computer, select a display that has a diagonal screen size of at least 19 inches.
5. Adjust the brightness and contrast of your computer screen. For more comfortable viewing, adjust the display settings on your computer so the brightness of the screen is about the same as that of your work environment.
As a test, try looking at the white background of this web page. If it looks like a light source, it’s too bright. If it seems dull and gray, it may be too dark.
Also, adjust your screen settings to make sure the contrast between the screen background and the on-screen characters is high. And make sure that the text size and color are optimized for the most comfort. Usually, black text on a white background is the best color combination. But other high-contrast, dark-on-light combinations may also be acceptable.
Finally, adjust your computer’s color temperature. Reducing the color temperature of your display lowers the amount of blue light emitted by a color display. Blue light is short-wavelength visible light that is associated with more eyestrain than longer wavelength hues, such as orange and red.
6. Blink more often. Blinking is very important — it rewets your eyes to keep them moist, comfortable and clear.
Studies show that, during computer use, people blink less frequently — about one-third as often as they normally do. And, according to studies, many blinks performed during computer work are only partial lid closures. This greatly increases the risk for dry eyes, blurred vision, eye irritation and fatigue.
To keep your eyes comfortable and seeing well during computer use, try this exercise: Every 20 minutes, blink 10 times by closing your eyes as if falling asleep (very slowly). This will help rewet your eyes.
Also, keep a bottle of artificial tears at your workplace and use them to moisten your eyes often during prolonged computer use. Ask your eye doctor to recommend the best brands for your needs.
7. Exercise your eyes. Another cause of computer eyestrain is focusing fatigue. Research shows that it’s harder for our eyes to maintain focus on computer-generated images than on printed images in a book or magazine.
To reduce your risk of focusing fatigue during computer use, look away from your screen or monitor every 20 minutes and gaze at a distant object across the room. Looking far away relaxes the focusing muscles inside your eyes, reducing focusing fatigue.
Another exercise is to look far away at an object for 10-15 seconds, then gaze at something up close for 10-15 seconds, and then look back at the distant object again. Do this 10 times. This exercise reduces the risk of your eyes’ focusing system “locking up” (a condition called accommodative spasm) during prolonged computer work.
8. Take frequent breaks. Take frequent, short breaks from your computer work throughout the day. Stand up, walk away from your work station and stretch your arms, legs, back, neck and shoulders. These activities will reduce your risk for computer vision syndrome and neck, back and shoulder pain.
Many workers take only two 15-minute breaks from their computer during their work day. According to a recent NIOSH study, computer workers experienced significantly less discomfort and eyestrain if they took four additional 5-minute “mini-breaks” during the day.
Interestingly, these supplementary breaks did not reduce productivity. Data entry speed was significantly faster as a result of the extra breaks, so work output was maintained even though the workers had 20 extra minutes of break time each day.
9. Modify your workstation. Looking back and forth between a printed page and your computer screen (as during data entry tasks), can also cause eyestrain. To improve comfort during these tasks, place the print material on a copy stand adjacent to your screen or monitor. If necessary, use a desk lamp to illuminate the print material – but make sure it doesn’t shine into your eyes or onto the computer screen.
Improper posture during computer work also contributes to computer vision syndrome. Adjust your workstation and chair to a comfortable height so your feet are flat on the floor in front of you.
Adjust your chair and computer so your screen is approximately 20 to 24 inches from your eyes and slightly below eye level so you can view it comfortably with your head and neck in a natural position.
10. Consider computer eyewear. For the greatest comfort at your computer, you may benefit from having a customized eyeglasses prescription for your computer work. This is especially true if you normally wear contact lenses that can become dry and uncomfortable during sustained computer work.
Computer glasses are also a good choice if you normally wear eyeglasses with bifocal or progressive lenses. Though these lenses provide excellent vision for most tasks, they don’t provide an adequate viewing zone for prolonged computer work.
Your eye doctor can prescribe specially designed computer eyewear to give you the best possible vision at your computer screen. Keep in mind that computer glasses are a specific type of eyewear and typically should not be worn when driving.
Article ©2015 Access Media Group LLC. All rights reserved. Reproduction other than for one-time personal use is strictly prohibited.
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