Month: December 2009

Seeing floaters or flashing lights can be caused by posterior vitreous or retinal detachment

Originally posted in Insidermedicine

The eye is very similar to a camera. Both are optical systems that have lenses in the front to focus light rays onto a film. The retina is the eye’s film. It is a tissue that consists of 10 layers and is about 500 microns thick—or, half a millimeter. The main function of the retina is to trap light rays, convert them into electrical impulses, and send …

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