edema is swelling of the macula, the small area of the retina responsible for
central vision. The edema is caused by fluid leaking from retinal blood
vessels. Central vision, used for reading and other close detail work, is
the macula is surrounded by many tiny blood vessels, anything affecting them,
such as a medical condition affecting blood vessels elsewhere in the body or an
abnormal condition originating in the eye, can cause macular edema.
blood vessel obstruction, eye inflammation, and age-related macular
degeneration have all been associated with macular edema. The macula may also be affected by swelling
following cataract extraction, though typically this resolves itself naturally.
seeks to remedy the underlying cause of the edema. Eyedrops, injections of
cortisone around the eye or laser surgery can be used to treat a macular
edema. Recovery depends on the severity
of the condition causing the edema.