Figure 1a. Untreated rhegmatogenous retinal detachment. (a) Ophthalmoscopic photograph shows retinal detachment and associated subretinal fluid. Note the leading edge of the detachment (arrows). (b) Higher-magnification photograph shows a large retinal tear. Note the free edges of the tear (arrows), which are elevated by the accumulation of subretinal fluid. (c) Axial computed tomographic (CT) scan shows hemorrhagic subretinal fluid in another patient with retinal detachment (arrow). Note that the detachment spares the optic disk.