| Macular edema | |
|---|---|
| Classification and external resources | |
| ICD-10 | H35.8 |
| ICD-9 | 362.01, 362.53 |
Macular edema occurs when fluid and protein deposits collect on or under the macula of the eye (a yellow central area of the retina) and causes it to thicken and swell. The swelling may distort a person's central vision, as the macula is near the center of the retina at the back of the eyeball. This area holds tightly packed cones that provide sharp, clear central vision to enable a person to see detail, form, and color that is directly in the direction of gaze.
Macular edema sometimes appear for a few days or weeks after cataract surgery, but most such cases can be successfully treated with NSAID or cortisone eye drops.
Until recently there were no good treatments for macular edema caused by central retinal vein occlusion (CRVO). Laser photocoagulation has been used for macular edema caused by branch retinal vein occlusion (BRVO).[1]
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Cystoid macular edema (CME) is any type of macular edema that involves cyst formation, including Irvine-Gass syndrome and others. [2][3]
Diabetic macular edema is classified into focal and diffuse types.[4] Each can be treated by types of laser photocoagulation.
In 2010 the US FDA approved the use of Lucentis injections for macular edema.[5]
In 2005, steroids were investigated for macular edema due to retinal blood vessel blockage such as CRVO and BRVO.[1]