A sclera buckle is a surgical procedure used to repair retinal detachments. The retina is a thin layer of neural tissue that lines the inside of the eye like wallpaper. If it detaches from the wall it does not function properly and vision is lost in the area of the detachment. Scleral buckling surgery involves placing a silicone band around the outside of the eye that pushes the wall of the eye slightly inward, thereby creating counter-force inside the eye that pushes the detached retina back against the inner wall, allowing it to re-attach. The encircling band remains on the eye but is not visible after the surgery.