It is an eye disease caused by the physical separation between the neurosensory retina and the pigment epithelium to which it is normally attached. Consequently, the retina is left without blood supply and vision loss occurs in varying degrees, depending upon the extent of the affected area. The initial detachment can be located but without treatment it tends to spread, eventually affecting the entire retina. The retina is responsible for capturing the light stimulus. The most frequently used techniques are laser photocoagulation, cryotherapy, pneumatic retinopexy, vitrectomy, subretinal fluid drainage and scleral ring.