How does cataract surgery lead to a retinal detachment?
Cataract surgery, especially if the operation has complications, increases the risk of a retinal detachment. Cataracts are areas of cloudiness (opacities) that form in the lens. Following the introduction of extracapsular surgery, a modern method used almost exclusively today for the removal of cataracts, the risk of retinal detachment became far less. In extracapsular cataract surgery, part of the capsule of the lens is left in place so that the vitreous gel is undisturbed. Phacoemulsification is a type of extracapsular cataract surgery that utilizes a very high speed ultrasonic instrument to break up and suck out the clouded lens of the eye. The capsule that is left in the eye may at a later time become cloudy, necessitating opening the capsule by using a laser. Opening the capsule increases the risk of retinal detachment. In intracapsular cataract surgery, the predominant surgical method used from 1965 to 1990, the entire lens was removed. The capsule at the back of the lens, theref