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Dry eye is a chronic medical condition that develops when the eye's tear film does not lubricate and protect the eye's outer surface.
Learn about how to keep your eyes healthy and your vision clear as you age with our Guide to Eye Health.
Age-related macular degeneration (AMD) is a vision disorder caused by abnormalities in a portion of the eye's retina called the macula. It can lead to loss of central vision.
Amblyopia (or “lazy eye”) refers to reduced vision due to incorrect signaling between the eye and brain. Strabismus, a condition of misaligned eyes, is the most common cause of amblyopia.
Cataract is a cloudy area on your normally clear lens, located behind your eye's colorful iris, that reduces vision.
Corneal damage, such as clouding or scarring can be caused by injuries, infections, hereditary defects and inflammation from chronic dry eye.
Diabetic eye disease is a term for a group of conditions (including diabetic retinopathy, diabetic macular edema, cataracts, and glaucoma) that can affect people with diabetes.
Glaucoma is a progression, vision-threatening disease that damages the cells and fibers of the optic nerve, affecting the transmission of signals from the eye to the brain.
IRDs are vision-threatening genetic disorders (caused by a defect with at least one gene) that affect retinal cells, causing photoreceptor degeneration or dysfunction. There are hundreds of genes that can cause an IRD.
Low vision is a broad term for conditions resulting in reduced sight that cannot entirely be corrected with eyeglasses, contact lenses, medicines or surgery. It can affect central and/or peripheral vision.
Primary ocular (eye) cancers, meaning that they start in the eye and are not cancer that has spread from somewhere else in the body, include uveal melanoma and retinoblastoma.
Research to Prevent Blindness makes the following eye screening tools available. While these tests do not replace a visit to an eyecare specialist, we hope you find them helpful.
Uveitis refers to inflammation of the uvea, the middle layer of the eyeball, which includes the iris, ciliary body and choroid. It can be the result of an infectious eye disease.