The surgery, called a pars plana vitrectomy with air tamponade, is commonly performed to fix retina tears or detachments by replacing part of the vitreous fluid inside the eye with air ...
Cataract surgery ... vitreous cavity, restoring limited but completely unfocused vision. Centuries later, the technique was modified so that a sharp fine instrument was inserted into the eye ...
A retinal tear is a common age-related eye condition. It causes eye floaters and flashes of light and may lead to more severe vision problems. On its own, a torn retina will not damage your eyesight.