Macular edema, or cystoid macular edema (CME) occurs when blood vessels leak into the eye, forming cysts and swelling that obstruct central vision.
During routine dilated eye exams, your doctor may detect central swelling. Your doctor will conduct a fluorescein angiography procedure, injecting sodium fluorescein dye into an arm or hand before taking photographs of your retina. The dye helps reveal any abnormalities on the retina.
The treatment type will depend on the severity and progression of the macular edema. Some of the treatment options include: