(a)Diabetic tractional detachment of the macula.
There is a thick fibrovascular membrane lying on the surface of the macula causing a tractional detachment with accumulation of a large amount of intraretinal edema.
(b)Following pars plana vitrectomy with membrane peeling there is a return to a more normal macular architecture. There is still a large amount of cystic intraretinal edema present
Source: Ophthalmology Notes