Anatomy of the Retina and Vitreous

Vitreous

The vitreous is a clear, gel-like substance that lies anterior to the retina.  Light rays go through the vitreous before focusing on the retina.  With age, the vitreous gel shrinks and pulls away from the retina.   In 90% of eyes, the vitreous pulls away from the retina without causing a retinal break.

Retina

The retina is a thin layer of light sensitive tissue that lines the back of the eye.  The macula is a central area of the retina that is responsible for clear, detailed vision.  When light rays are focused on the retina, they are transmitted to the brain and interpreted as the images you see.

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