On the left: diagram of the eye. On the right: layers within the retina and the adjacent choroid. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...

Find out what you need to know about the retina, including where it's located, what it does, and potential health problems.

Gel-like fluids inside the eye help it maintain its shape, which plays an important role in overall eye health. These substances are called the vitreous humor and aqueous humor. Vitreous is a ...

Retinal vein occlusion (RVO), an eye disease that affects up to 2% of people over age 40, occurs when a vein in the eye's retina becomes blocked, leading to swelling in the eye, inflammation ...

Blue vessels are closest to the surface, green vessels span the depth of the retina, and red is the layer deepest in the eye. Credit: Kenichi Toma, PhD “We had been wanting to collaborate for some ...