Pinkeye, or conjunctivitis, is inflammation of the membranes (conjunctiva) covering the white parts of the eyes and the membranes on the inner part of the eyelids.Source: iStock Pinkeye (conjunctivitis) facts Readers Comments 16 Share Your Story Pinkeye (conjunctivitis) can be due to infectious or noninfectious causes. Infectious pinkeye is highly contagious. Bacterial or viral infections...
Introduction to Color Blindness When we see different colors, we are perceiving differences in the light that is reaching our eyes. The way we see different colors is something like the way we hear different sounds as being "low" or "high." This is called pitch, and it corresponds to the frequency of the sound. The...
Amblyopia is a condition that occurs in children when one eye has poorer vision than the other. If amblyopia is left untreated, a child's vision will not develop correctly. The child's brain, as it matures, will start "ignoring" the image coming from the bad eye. This causes vision in the affected eye to become even...
Introduction Astigmatic keratotomy eye surgery is a safe and effective way to correct astigmatism. Astigmatic keratotomy eye surgery is safe and effective, but in recent years has been largely replaced by LASIK, according to doctors from The Cleveland Clinic. The cornea of people who have astigmatism is shaped like a football. Astigmatic keratotomy eye surgery...
What is uveitis? Uveitis is inflammation of the uvea of the eye. Three parts make up the uvea. The first part is the iris, which is the colored ring of tissue you can see in the mirror. The dark hole in the middle of the iris is the pupil. The second and third parts, which...
Contact lenses have come a long way lately, and offer some exciting options for the consumer. You can bat a pair of baby blues one day, then flash golden tiger eyes the next. You can toss your disposable lenses in the trash each night. Or you can leave in your extended wear lenses for an...
What is keratoplasty eye surgery? Automated lamellar keratoplasty eye surgery, or ALK, is a surgical procedure used to correct vision in people with severe nearsightedness and mild degrees of farsightedness. What Happens During Keratoplasty Eye Surgery? Keratoplasty eye surgery, performed under local anesthesia, usually takes less than an hour to complete. A cutting device is...
Macular degeneration facts Diagram of the eye The macula is the central portion of the retina, the light-sensitive layer of tissue at the back of the eye. The macula is responsible for central vision (straight-ahead vision). Degeneration of the macula occurs most often after the age of 60 years and is termed age-related macular generation...
Contact lenses vs glasses One is not necessarily better than the other Choosing to wear eyeglasses or contact lenses for vision correction mostly depends on personal preferences, such as lifestyle, comfort, convenience, and budget. One is not necessarily better than the other; each has its pros and cons in terms of vision, ease of use, and eye health. Below...
In most cases, the changes in power after LASIK are minor and do not cause problems LASIK (laser-assisted in situ keratomileusis) surgery is a procedure to restructure the cornea and correct myopia. It corrects myopia in most people who undergo the procedure. However, in a small number of people, the lens may undergo age-related changes....