If not treated through a change in eyeglass prescription or surgery, cataracts can increase risk of permanent blindness. In addition, the longer advanced cataracts are left untreated, the more difficult it can be to successfully remove the cataract and restore vision. To help people understand the condition, its causes and treatments, Academy member ophthalmologists - medical doctors specializing in the diagnosis, medical and surgical treatment of eye diseases and conditions - have responded to hundreds of queries about cataracts submitted by the public through the Ask an Eye M.D. portal on GetEyeSmart.org. The following five questions and answers about cataracts are a small sampling of what is available for public reference on the website:
-- Can you have 20/20 vision and still be diagnosed with cataract?"Yes, you
can," answers Jeffrey Whitman, M.D. "Having a cataract just means that
the lens of your eye has become cloudy and hardened - a process that
begins at around 50 years of age and does not preclude 20/20 vision. It
is only when it becomes visually significant - that is, when it degrades
your vision, changes color perception, or causes glare at nighttime -
that it requires surgical care."
-- How can I keep cataracts from getting worse?"Most individuals over age
50 to 60 technically have age-related changes in their lenses that might
be termed 'very early cataracts,'" says Charles P. Wilkinson, M.D. "In
general, prevention is very difficult; but the most helpful practices
-- Avoid ultraviolet light from the sun with sunglasses
-- Avoid using steroid eye drops unless absolutely necessary
-- Avoid the rare medications that may be associated with cataract
progression, including psoralens, a drug used along with light
therapy to treat skin disorders; chlorpromazine, an antipsychotic;
and some glaucoma medications."
-- Do cataracts cause eye pain?"Cataracts do not cause pain except if they
have been allowed to remain untreated for too long," explains Wayne
Bizer, D.O. "In this case they cause a lot of pain and light
sensitivity. Consult your ophthalmologist immediately if you are having
-- Why do I need to stop wearing my contact lenses before cataract
surgery?"Before cataract surgery, important measurements of the surface
of your eye must be taken," says W. Barry Lee, M.D. "Contact lenses
alter the shape of the eye's surface, which can make the measurements
inaccurate and lead to poor vision after the surgery. The length of time
you must not wear contact lenses prior to your cataract surgery varies
depending on the type of contact lenses you wear, so listen to your
ophthalmologist's instructions carefully."
-- How long is recovery time after cataract surgery?"Typically, this should
only take several days," says Gary Hirshfield, M.D. "Of course, some
issues may occur that require a longer recovery period, such as other
eye conditions or rare surgery complications. Additionally, if both eyes
need to be done and you are significantly near- or far-sighted, then
there may be a period of time in between the surgery for each eye where
the differences between the eyes may make your tasks difficult. Also,
depending upon the surgical approach you may need a change in your
eyeglass prescription which is usually done at about four weeks. However
that can be accelerated to just several days provided you understand
that the prescription may need to be revised in several weeks or
"While cataracts are one of the most common eye conditions - especially for older adults - when and why to seek treatment and what kind can be a complex decision," said Daniel J. Briceland, M.D., ophthalmologist and clinical spokesperson for the American Academy of Ophthalmology. "Some people wait too long before seeing a doctor about a suspected cataract, but they should really see an ophthalmologist for a comprehensive eye exam. Even if immediate treatment is not required, at least an ophthalmologist can confirm this and have a baseline from which to compare your vision if and when the cataract worsens later on."
Seniors who have not had an eye exam in the last three years and for whom cost is a concern may qualify for EyeCare America, a public service program of the Foundation of the American Academy of Ophthalmology, which provides eye exams and care at no out-of-pocket cost for eligible seniors age 65 and older through its network of more than 6,000 volunteer ophthalmologists. Visit www.eyecareamerica.org to see if you or your loved ones are eligible.
See all 250 cataract-related questions and answers or submit your own question atwww.geteyesmart.org/ask.
About the American Academy of Ophthalmology
The American Academy of Ophthalmology, headquartered in San Francisco, is the world's largest association of eye physicians and surgeons -- Eye M.D.s -- with more than 32,000 members worldwide. Eye health care is provided by the three "O's" - ophthalmologists, optometrists, and opticians. It is the ophthalmologist, or Eye M.D., who has the education and training to treat it all: eye diseases, infections and injuries, and perform eye surgery. For more information, visitwww.aao.org. The Academy's EyeSmart® program educates the public about the importance of eye health and empowers them to preserve healthy vision. EyeSmart provides the most trusted and medically accurate information about eye diseases, conditions and injuries. OjosSanos(TM) is the Spanish-language version of the program. Visit www.geteyesmart.org or www.ojossanos.org to learn more.
Web Site: http://www.aao.org