Aging and the Eyes
Did you know that many older people have good eyesight into their 80's and beyond? Growing older does not always mean you see poorly. But age brings changes that can weaken your eyes.
There are some easy things to try when these changes happen. You might add brighter lights in more places around the house--like at work counters, stairways, and favorite reading places. This may help you see better and can sometimes prevent accidents caused by weak eyesight. If you have questions or concerns about your eyesight or your elder's eyesight, consult a qualified medical professional. This information is provided for educational purposes only.
While older people have more eye problems and
eye diseases than younger people, you can prevent or correct many of them by:
Common Eye Complaints
Presbyopia (prez-bee-OH-pee-uh) is a slow loss of ability to see close objects or small print. It is a normal process that happens over a lifetime. You may not notice any change until after the age of 40. People with presbyopia often hold reading materials at arm's length. Some get headaches or "tired eyes" while reading or doing other close work. Presbyopia is often corrected with reading glasses.
Floaters are tiny spots or specks that float across the field of vision. Most people notice them in well-lit rooms or outdoors on a bright day. Floaters often are normal, but sometimes they warn of eye problems such as retinal detachment, especially if they happen with light flashes. If you notice a sudden change in the type or number of spots or flashes, see your eye doctor.
Dry eyes happen when tear glands don't make enough tears or make poor quality tears. Dry eyes cart be uncomfortable, causing itching, burning, or even some loss of vision. Your eye doctor may suggest using a humidifier in the home or special eye drops ("artificial tears"). Surgery may be needed for more serious cases of dry eyes.
Tearing, or having too many tears, can come from being sensitive to light, wind, or temperature changes. Protecting your eyes (by wearing sunglasses, for instance) sometimes solves the problem. Tearing may also mean that you have a more serious problem, .such as an eye infection or a blocked tear duct. Your eye doctor can treat or correct both of these conditions.
Eye Diseases and Disorders Common in Older People
Cataracts are cloudy areas in part or all of the eye lens. The lens is usually clear and lets light through. Cataracts keep light from easily passing through the lens, and this causes loss of eyesight. Cataracts often form slowly and cause no pain, redness, or tearing in the eye. Some stay small and don't change eyesight very much. If a cataract becomes large or thick, it usually can be removed by surgery. During surgery, the doctor takes off the clouded lens and, in most cases, puts in a clear, plastic lens. Cataract surgery is very safe. It is one of the most common surgeries done in the United States.
Glaucoma results from too much fluid pressure inside the eye. It can lead to vision loss and blindness. The cause of glaucoma is unknown. If treated early, glaucoma often can be controlled and blindness prevented. To find glaucoma, the eye doctor will look at your eyes through dilated pupils. Treatment may be prescription eye drops, oral medications, or surgery. Most people with glaucoma have no early symptoms or pain from increased pressure.
Retinal disorders are a leading cause of blindness in the United States. The retina is a thin lining on the back of the eye. It is made up of cells that get visual images and pass them on to the brain. Retinal disorders include age-related macular degeneration, diabetic retinopathy, and retinal detachment.
Age-related macular degeneration. The macula is part of the eye with millions of cells that are sensitive to light. The macula makes vision possible from the center part of the eye. Over time, age-related macular degeneration can ruin sharp vision needed to see objects clearly and to do common tasks like driving and reading. In some cases, it can be treated with lasers.
Diabetic retinopathy. This disorder can result from diabetes. It happens when small blood vessels stop feeding the retina properly. In the early stages, the blood vessels may leak fluid, which distorts sight. In the later stages, new vessels may grow and send blood into the center of the eye, causing serious vision loss. In most cases, laser treatment can prevent blindness. It is very important that people with diabetes have an eye exam through dilated pupils every year.
Retinal detachment. This happens when the inner and outer layers of the retina become separated. With surgery or laser treatment, doctors often can reattach the retina and bring back all or part of your eyesight.
Conjunctivitis happens when the tissue that lines the eyelids and covers the cornea becomes inflamed. It can cause itching, burning, tearing, or a feeling of something in the eye. Conjunctivitis can be caused by infection or allergies.
Corneal diseases and conditions can cause redness, watery eyes, pain, reduced vision, or a halo effect. The cornea is the clear, dome-shaped "window" at the front of the eye. It helps to focus light that enters the eye. Disease, infection, injury, toxic agents, and other things can damage the cornea. Treatments include changing the eyeglass prescription, eye drops, or surgery.
Corneal transplantation is used to restore eyesight when the cornea has been hurt by injury or disease. An eye surgeon replaces the scarred cornea with a healthy cornea donated from another person. Corneal transplantation is a common treatment that is safe and successful. The doctor may prescribe eyeglasses or contact lenses after surgery.
Eyelid problems can come from different diseases or conditions. The eyelids protect the eye, distribute tears, and limit the amount of light entering the eye. Pain, itching, tearing, and sensitivity to light are common eyelid symptoms. Other problems may include drooping eyelids (ptosis), blinking spasms (blepharospasm), or inflamed outer edges of the eyelids near the eyelashes (blepharitis). Eyelid problems often can be treated with medication or surgery.
Temporal arteritis causes the arteries in the temple area of the forehead to become swollen. It can begin with a severe headache, pain when chewing, and tenderness in the temple area. It may be followed in a few weeks by sudden vision loss. Other symptoms can include shaking, weight loss, and low-grade fever. Scientists don't know the cause of temporal arteritis, but they think it may be a disorder of the immune system. Early treatment with medication can help prevent vision loss in one or both eyes.
Low Vision Aids
Many people with eyesight problems find low vision aids helpful. These are special devices that are stronger than regular eyeglasses. Low vision aids include telescopic glasses, lenses that filter light, and magnifying glasses. Also, there are some useful electronic devices that you can either hold in your hand or put directly on your reading material. People with only partial sight often make surprising improvements using these aids.
A number of organizations can send you more information:
The National Eye Institute (NEI), part of the National Institutes of Health (NIH), supports research on eye disease and the visual system. NEI can send you free brochures on eye disorders. Write to the NEI, 2020 Vision Place, Bethesda, MD 208923655; or call 301-496-5248.
The American Foundation for the Blind can send a list of their free publications on vision. Contact the Foundation at 11 Penn Plaza, Suite 300, New York, NY 10001; or call 1-800-232-5463.
The American Optometric Association provides free information to the public about vision and eye care. Contact the Association at 243 North Lindbergh Boulevard, St. Louis, MO 63141; or call 314-991-4100.
The Lighthouse National Center for Vision and Aging serves as a national clearinghouse for information on vision and aging. Contact the Center at 11 East 59th Street, New York, NY 10022; or call 1-800-334-5497.
The National Association for the Visually Handicapped is a voluntary health agency that works with people who can partially see and has a loan library of large print titles. Contact the Association at 22 West 21st Street, New York, NY 10010, or call 212-889-3141.
The National Eye Care Project of the American Academy of Ophthalmology (AAO) has a helpline number to refer callers to local ophthalmologists who will volunteer to provide needed medical care. This public service program brings eye care and information to disadvantaged older people. Contact the AAO at P.O. Box 6988, San Francisco, CA 94120-6988; or call 1-800-222-EYES.
The National Library Service for the Blind and Physically Handicapped provides free library services to people with vision problems and physical disabilities. It offers braille and recorded books and other periodicals. Contact the Service at 1291 Taylor Street, NW, Washington, DC 20542; or call 1-800-424-8567 (e-mail:. firstname.lastname@example.org).
The National Society to Prevent Blindness has several free pamphlets on specific diseases affecting the eyes. They also have Home Eye Test for Adults, which is available for 1.25 (to cover the cost of postage and handling). Contact the Society at: 500 East Remington Road Schaumburg, IL 60173-5611 or call 1-800-331-2020.
The Vision Foundation publishes the Vision Resource List, which includes information on special products and service for people with visual impairments. Contact the Foundation at: 818 Mr. Auburn Street Watertown, MA 02172 or call 617-926-4232.
Source: National Institute on Aging, 1995
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