Macular Edema Diagnosis
During an eye exam, your ophthalmologist will dilate (widen) your pupils so they can look at your retina in the back of the eye.
Your ophthalmologist may do other tests that provide a more detailed look inside your eye, such as:
Fluorescein angiography. A yellow dye (called fluorescein) is injected into a vein, usually in your arm. The dye travels through your blood vessels. A special camera takes photos of the retina as the dye travels throughout its blood vessels. This shows whether any blood vessels are leaking and how much leakage there is.
Optical Coherence Tomography (OCT). OCT is another way to look closely at the retina. A machine scans the retina and provides very detailed images of its thickness. This helps your doctor find leakage and measure swelling of the macula.