what causes a tear in the retina?
If you are experiencing sudden decrease in vision, increase in the number and size of floaters or sudden appearance of flashes in vision, you could have retinal tears. A retinal tear occurs when part of the retina separates from the outer layers of the eye. If not treated early, retinal tears can lead to a more serious condition called retinal detachment, which may lead to partial or complete loss of vision.
Pneumatic retinopexy - this procedure is more common if the detachment is uncomplicated. The surgeon may start by freezing (cryopexy) the tear area. A bubble is injected into the vitreous cavity of the eye, causing the retina to push against the tear and the detached area. The continuous pressure, which may go on for days, eventually makes the retina re-attach itself to the wall of the back of the eye.