Vision Terms The following are common vision terms: glasses3 Near-Sightedness glasses3 Far-sightedness glasses3 Astigmatism glasses3 Vision Over 40 (Presbyopia) glasses3 Amblyopia Amblyopia (Lazy Eye) Commonly called “lazy eye,” amblyopia can be treated successfully if detected early enough in childhood. Astigmatism Often mistakenly called “stigmatism,” this common vision problem can be corrected with eyeglasses, contact lenses or refractive surgery. CMV Retinitis AIDS or other diseases that affect your immune system can increase your risk of serious eye problems from cytomegalovirus (CMV) infection. Eye Allergies Are you bothered by red, itchy eyes? You may have allergies. Farsighted (Hyperopia) Also called farsightedness, hyperopia is a common vision problem that can cause headaches, eyestrain and trouble reading. Keratoconus This eye disease causes the cornea to grow thinner and bulge forward in an irregular cone-shape. Treatment options range from gas permeable contact lenses to a cornea transplant. Vision Over 40 Nearsighted (Myopia) Also called nearsightedness, myopia is a very common vision problem, affecting up to one-third of the U.S. population. Photophobia If you have light sensitive eyes, you might be experiencing photophobia. Pingueculae & Pterygia Pingueculae and pterygia are funny-looking words for growths on the surface of your eye. Pink Eye (Conjunctivitis) This acute and contagious form of conjunctivitis is particularly common among preschoolers and school-age children. Ptosis Ptosis is a drooping eyelid. Surgery is usually required to correct this problem. Retinal Detachment A detached retina is a medical emergency. Learn the warning signs of a retinal detachment and what you can do to avoid permanent vision loss. Retinitis Pigmentosa These inherited disorders, commonly abbreviated as RP, cause progressive peripheral vision loss, night blindness and central vision loss. Styes This common problem is simply an infected lid gland. Learn how to prevent and treat styes. Convergence Insufficiency This binocular vision problem causes discomfort with visually demanding near tasks.