Eye Care Facts and Myths: A Closer Look
We have all been told by someone at some time, “You’ll hurt your eyes if you do that!” But do you really know what is or is not good for your eyes? Test yourself with the following true or false statements and see how much you know about your eyes.
We have all been told by someone at some time, “You’ll hurt your eyes if you do that!” But do you really know what is or is not good for your eyes? Test yourself with the following true or false statements and see how much you know about your eyes.
- “Reading in dim light is harmful to your eyes.” True or False? False. Using your eyes in dim light does not damage them. For centuries, all nighttimes reading and sewing was done by candlelight or with gas or kerosene lamps. However, good lighting does make reading easier and can prevent eye fatigue.
- “Using computers can damage your eyes.” True or False? False. Working on computers or video display terminals (VDTs) will not harm your eyes. Often, when using a VDT for long periods of time, just as when reading or doing other close work, you blink less often than normal. This reduced rate of blinking makes your eyes dry, which may lead to the feeling of eyestrain or fatigue. Try to take regular breaks to look up or across the room. Looking at objects farther away often relieves the feeling of strain on your eyes. Keep the monitor between 18 to 24 inches from your face and at a slight downward angle. Also consider the use of artificial tears. If your vision blurs or your eyes tire easily, you should have your eyes examined by an ophthalmologist.
- “Wearing the wrong kind of eyeglasses damages your eyes.” True or False? False. Eyeglasses are devices used to sharpen your vision. Although correct eyeglasses or contacts help you to see clearly, wearing a pair with the wrong lenses, or not wearing glasses at all, will not physically damage your eyes. However, children younger than 8 years old who need eyeglasses should wear their own prescription to prevent the possibility of developing amblyopia or “lazy eye.”
- “Wearing poorly-fit contacts does not harm your eyes.” True or False? False. Poorly fit contact lenses can be harmful to your cornea (the window at the front of your eye). Make certain your eyes are checked regularly by your Opticians/ophthalmologist if you wear contact lenses.
- “You do not need to have your eyes checked until you are in your 40s or 50s.” True or False? There are several asymptomatic, yet treatable, eye diseases (most notably glaucoma) that can begin prior to your 40s.o need eyeglasses should wear their own prescription to prevent the possibility of developing amblyopia or “lazy eye.”
- “Safety goggles are more trouble than they’re worth.” True or False? Safety goggles prevent many potentially blinding injuries every year. Keep goggles handy and use them!
- “It’s okay to swim while wearing soft
contact lenses.” True or False? Potentially
blinding eye infections can result from swimming or
using a hot tub while wearing contact lenses.
- “Children outgrow crossed or misaligned
eyes.” True or False? False. Children do not
outgrow crossed eyes. A child whose eyes are misaligned
may develop poor vision in one eye because the brain
will “turn off” or ignore the image from the misaligned
or lazy eye. The unused or misaligned eye will not
develop good vision unless it is forced to work, usually
by patching the stronger eye. Children who appear to
have misaligned eyes should be examined by an
ophthalmologist. In general, the earlier misaligned eyes
are treated, the better. Treatment may include patching,
eyeglasses, eye drops, surgery or a combination of these
methods.
- “Learning disabilities are caused by eye
problems.” True or False? False. Difficulties
with reading, mathematics and other learning problems in
children are often referred to as learning disabilities.
There is no strong evidence that vision problems cause
learning disabilities or that eye exercises cure
learning problems. Children with learning difficulties
often need help from teachers and people with special
training. Before such treatment begins, it is important
for the child to have a complete medical eye examination
to make certain he or she is seeing as well as possible.
- “Sitting close to the television can damage children’s eyes.” True or False? False. Children can focus at close distance without eyestrain better than adults. They often develop the habit of holding reading materials close to their eyes or sitting right in front of the television. There is no evidence that this damages their eyes, and the habit usually diminishes as children grow older. Children with nearsightedness (myopia) sometimes sit close to the television in order to see the images more clearly.
- “Eating carrots improves your vision.” True or False? False. Carrots are rich in vitamin A, which is essential for sight, but many other foods also contain this vitamin. A well-balanced diet, with or without carrots, provides all the vitamin A necessary for good vision.
- “People with weak eyes should avoid reading
fine print.” True or False? False. It is said
that people with weak eyes or people who wear glasses
will “wear out” their eyes sooner if they read fine
print or do a lot of detail work. The concept of the eye
as a muscle is incorrect. The eye more closely resembles
a camera. A camera will not wear out sooner just because
it is used to photograph intricate detail. You can use
your eyes without fear of wearing them out.
- “Wearing eyeglasses will cause you to become dependent on them.” True or False? False. Eyeglasses are used to correct blurry vision. Since clear vision with eyeglasses is preferable to uncorrected vision, you may find that you want to wear your eyeglasses more often. Although it may feel as if you are becoming dependent on your eyeglasses, you are actually just getting used to seeing clearly.
- “Older people who gain ’second sight’ may be
developing cataracts. ”True. Older individuals
who wear reading eyeglasses sometimes find themselves
able to read without their eyeglasses and think their
eyesight is improving. The truth is they are becoming
more nearsighted, which can be a sign of early cataract
development.
- “A cataract must be ‘ripe’ before it is
removed.” True or False? False. With older
surgical techniques, it was thought to be safer to
remove a cataract when it was “ripe.” With today’s
modern surgical procedures, a cataract can be removed
whenever it begins to interfere with a person’s
lifestyle. If you are unable to see well enough to do
the things you like or need to do, you should consider
cataract surgery. Surgery is the only way to remove a
cataract.
- “Contact lenses can prevent nearsightedness
from getting worse.” True or False? False. Some
people have been led to believe that wearing contact
lenses will permanently correct nearsightedness so that
eventually they won’t need either contacts or
eyeglasses. There is no evidence that wearing contact
lenses produces a permanent improvement in vision or
prevents nearsightedness from getting worse.
- “Eyes can be transplanted.” True or False?
False. Medical science has no way to transplant
whole eyes. Our eyes are connected to the brain by the
optic nerve. Much like a fiber optic cable, the optic
nerve is made up of more than one million tiny nerve
fibers. This nerve cannot be reconnected once it has
been severed. Because of this, the eye is never removed
from its socket during surgery.
The cornea, the clear front part of the eye, has been successfully transplanted for many years. Corneal transplant is sometimes confused with an eye transplant.
- “All ‘eye doctors’ are the same.” True or False? False. An ophthalmologist is a medical doctor (M.D. or D.O.) with special training to diagnose and treat all diseases of the eye. To become an ophthalmologist requires a minimum of eight years of medical school and hospital training after college. An ophthalmologist is qualified to provide all aspects of eye care, including cataract, laser and other eye surgery.
