Macular edema occurs when fluid and protein deposits collect in the eyeball on or under a part of the retina (the lining of the back of the eye) that is called the macula. This material causes the macula to thicken and swell, and it may distort a person's central vision.
The macula provides sharp, clear central vision that allows a person to see form, color, and detail that is directly in the line of sight.
Primary Medical ReviewerAdam Husney, MD - Family Medicine
Specialist Medical ReviewerCarol L. Karp, MD - Ophthalmology
Current as ofNovember 14, 2014
WebMD Medical Reference from Healthwise