The eye is like a camera with lenses in front and film in the back. The retina is the film and lines the back 3/4 of the retina. A retinal detachment occurs when the vitreous gel inside the eye pulls and tears the retina. Fluid leaks through the tear and the retina detaches. In years past, and still with a few surgeons, a scleral buckle (a kind of rubber band) is placed around the eye. This causes unnecessary pain and many side effects, and current technology standards allow better results with far fewer problems. These videos highlight some of these techniques.