Retinal artery occlusion, or eye stroke, can cause sudden and permanent vision loss. Learn about its causes, symptoms, and treatment. ... They may ask you to read an eye chart.

Your eye doctor may dilate your eyes, then place your head on a chin rest while a machine beams a light into your eye to capture images of your retina. OCT isn’t painful. A fluorescein angiogram.

Dilated eye exam: This is the most important diabetes eye test. It helps a doctor examine the back of your eyes for retinal inflammation, blood vessel leakage, cataracts, nerve damage, or other ...

Visiting a retina specialist every year for a dilated retinal eye exam is the best way to help spot vision changes and prevent further loss. You should also talk to your doctor about the different ...

A new retinal stimulation technique called Oz enabled volunteers to see colours that lie beyond the natural range of human vision. Developed by researchers at UC Berkeley, Oz works by stimulating ...

NPDR can weaken or close off blood vessels in a person’s retina, causing swelling or reduced blood flow in the eye. Small bulges in the retinal blood vessels are known as microaneurysms .

A new study suggests that never-seen-before stem cells in the human retina can restore vision in mice with a common eye disorder. But more work is needed to translate the treatment to people.