Dry
eye can manifest itself with a number of symptoms from pain and redness
to heavy eyelids to an inability to cry. Blurred vision is a
particularly concerning symptom of dry eye because while it is often a
result of tear film dehydration, blurred vision can also be a symptom of
other, more serious, medical conditions. Blurred vision is not a
medical condition but is instead a symptom of underlying problems. It is
associated with glaucoma, cataracts and macular degeneration,
all of which must be seriously controlled. While it is very possible
that your blurred vision is simply due to dry eye, checking with your
doctor to make sure is always a wise idea, especially if the blurred
vision continues as you properly treat your dry eye.
When is Dry Eye the Likely Culprit?
Before
you visit your doctor, it is a good idea to think critically about your
symptoms. Does your blurred vision worsen at the end of the day? Does
it come and go? It is exacerbated after long periods in front of the
computer of concentrating on a book? Does it improve when you blink
liberally? Affirmative answers to these questions generally indicate
that your dry eye syndrome might be to blame.
Why Does Dry Eye Cause Blurred Vision?
The
tear film is important to protecting and lubricating the cornea, which
transmits light. Dry eye sufferers have poor tear film quality and this
can affect the transmission of light to the retina. When dry eye leads
to dry spots on the cornea, blurred vision is a common result. Poor tear
film moisture can also increase chances of bacteria growth and
allergies, which can result in itchy and watery eyes and subsequent
blurred vision.
What Else Could It Be?
If
you don’t think dry eye is to blame, and you aren’t experiencing
symptoms of glaucoma, cataracts or macular degeneration, here are some
other potential explanations for your blurred vision. Migraine sufferers
often report experiencing blurred vision just before experiencing a
headache. Also, studies have shown that certain drugs, including heart
medications, blood pressure medicine, and oral contraceptives can cause
blurred vision. Ask your doctor if blurred vision is a side effect of
any medication you might be taking. Very often, blurred vision is simply
an indicator that you might need corrective lenses, or a new
prescription if you are also wearing glasses or contacts. In any case,
conversation with your doctor needs to occur if bothersome blurriness is
impacting your life. Dry eye might be a factor, but it’s important to
consider all options in order to maximize your chances of successful
treatment.
photo credit: <a href="http://www.flickr.com/photos/teegardin/5547069087/">kenteegardin</a> via <a href="http://photopin.com">photopin</a> <a href="http://creativecommons.org/licenses/by-sa/2.0/">cc</a>
No comments:
Post a Comment