Light is crucial for our vision. We see objects around us when light bounces off them and enters our eyes. But sometimes, light can be the cause of vision problems when it causes halos or glare.
Halos are bright circles that appear to surround a source of light, such as oncoming car headlights. Glare is light that enters your eye but doesn't help you see better. Rather, it interferes with your vision.
Glare can be:
Uncomfortable. When you're trying to see in the presence of a too-bright...
Symptoms may get worse at the end of the day and in drafty,
dry, smoky, or dusty environments.
Dry eye may also cause a type
of keratitis (inflammation of the cornea). Changes in the type of
contact lens and the way the lens sits on the eye may help correct this
Dry eye symptoms can be especially bad in
people who wear soft contact lenses. Soft lenses absorb water from the eye
surface and make the eye dry. Dryness may lead to patchy loss of cells in the
cornea. Trying a different type of lens may help the problem.
In this article
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
October 16, 2012
This information is not intended to replace the advice of a doctor.
Healthwise disclaims any liability for the decisions you make based on this