Cystoid Macular Edema is a condition in which clear fluid fills many cyst-like formations in the segment of the retina that is responsible for central vision, called the macula, these cystoid formations create macular edema, or swelling of the macula.
Cystoid macular edema may accompany several diseases such as central retinal vein occlusion or diabetes. Although the exact cause of this condition is not known, about 3% of those who have cataract surgery will develop cystoid macular edema.
Symptoms of this condition include blurred vision or decreased central vision. Because cystoid macular edema usually develops two to four months from cataract surgery, decrease in vision may be gradual. However, there may be no visual symptoms of the condition at all.
Several treatment options exist for cystoid macular edema. After photographs of the retina are taken to assess the condition, the ophthalmologist may prescribe medical therapy that may include oral medications as well as eye drops. Another option is an injection of a drug to reduce the inflammation and fluid inside the eye. Finally, laser surgery or vitrectomy may be scheduled to treat cystoid macular edema.
Because this condition can exist without visual symptoms, it is important to schedule regular visits to an ophthalmologist or retinal specialist. Early detection of cystoid macular edema is the key to achieving the best result from treatment of this retinal disorder.