For more information on this, go to the section on Diabetic eye disease . Cystoid macular edema - this condition, abbreviated CME, is a cystic accumulation of fluid in the macula, which can lead to blurred vision. In a few cases, it occurs spontaneously. Often, CME goes away on its own. It can be a frustrating condition to treat.
Macular edema can occur with blockages of veins in the eye.
There may be no effective treatment for this. This problem is treatable by laser, if the vision is sufficiently blurred to need treatment. This condition is a dome-like swelling of the retina due to a leakage of fluid from beneath the retina. Some people experience blurred vision, and some distorted vision. Some people describe a circular gray spot in their vision, and some people have disturbed color vision.