Common Vision Problems
A cataract is a clouding of the lens in the eye that affects vision for millions in the United States. Most cataracts are related to aging. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.
Age-related macular degeneration (AMD) is a disease that blurs the sharp, central vision you need for “straight-ahead” activities such as reading, sewing, and driving. AMD is a leading cause of vision loss in Americans 50 years of age and older.
Glaucoma is a group of diseases that can damage the eye’s optic nerve and result in vision loss and blindness. With early treatment, individuals an often protect their eyes against serious vision loss.
Diabetic retinopathy is a complication of diabetes and a leading cause of blindness. It occurs when diabetes damages the tiny blood vessels inside the retina, the light-sensitive tissue at the back of the eye. A healthy retina is necessary for good vision.
Amblyopia, also known as lazy eye, is the medical term used when the vision in one of the eyes is reduced because the eye and the brain are not working together properly. The eye itself looks normal, but it is not being used normally because the brain is favoring the other eye.
Strabismus, also known as crossed eyes or walleye, involves deviation of the alignment of one eye in relation to the other. It is caused by a lack of coordination between the eyes. As a result, the eyes look in different directions and do not focus simultaneously on a single point.
Low Vision – While most visual changes can be corrected by glasses, medicine or surgery, visual changes caused by eye disease, poor health or injury can cause permanent vision loss. If the loss is total, the result is blindness. If it is partial, the result is a vision impairment known as “low vision.” A person with low vision has severely reduced visual acuity or a significantly obstructed field of vision – or both.
Myopia (nearsightedness) is a vision condition in which close objects are seen clearly, but objects farther away appear blurred. Nearsightedness occurs if the eyeball is too long or the cornea, the clear front cover of the eye, has too much curvature. As a result, the light entering the eye isn’t focused correctly and distant objects look blurred.
Astigmatism (uneven focusing of light) a vision condition that causes blurred vision due either to the irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye. An irregular shaped cornea or lens prevents light from focusing properly on the retina, the light sensitive surface at the back of the eye. As a result, vision becomes blurred at any distance.
Hyperopia (farsightedness) is a vision condition in which distant objects are usually seen clearly, but close ones do not come into proper focus. Farsightedness occurs if your eyeball is too short or the cornea has too little curvature, so light entering your eye is not focused correctly.
Dry Eye – Dry eyes occur when your tears aren’t able to provide adequate moisture for your eyes. When tears do not adequately lubricate the eye, a person may experience pain, light sensitivity, itchiness, redness and blurred vision. Though dry eyes cannot be cured, there are a number of steps that can be taken to treat them.
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