What is cystoid macular edema?
Cystoid macular edema (CME) is an accumulation of fluid in the center of the retina. The fluid is clear like water and comes from abnormal leakage of the blood vessels in the retina. The retina is a thin layer of delicate nerve tissue which lines the inside wall of the eye like the film in a camera. In the eye, light is focused onto the retina which “takes the picture” of objects you look at and sends the message to the brain. The macula is the central area of the retina that gives you sharp central vision and color vision. CME frequently causes a blurring of vision described as fuzzy, hazy, or cloudy. Cystoid macular edema is NOT related in anyway to macular degeneration.
What causes cystoid macular edema?
Although the exact causes of CME are unknown, it may accompany blood vessel problems or inflammation. It most commonly occurs after cataract surgery and may be seen in as many as 3% of eyes undergoing surgery.
How is cystoid macular edema treated?
Since many factors may lead to CME, many different types of treatment are available. Usually weeks to months are required to improve the vision. Sometimes more than one type of treatment is needed for best results. Rarely, vision cannot be restored.
Treatment may include eye drops (steroid, and non-steroid) instilled into the eye several times a day. Sometimes, pills are used to decrease inflammation. Occasionally, medication is injected next to the eye under the eyelid. Anesthetic eye drops help to make the injections painless. Sometimes, surgery is needed to look for infection or remove abnormal scar tissue from inside the eye. With treatment most cases of CME can be managed successfully with improvement in vision. For more information visit www.retinavitreous.com
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