All of the following take part in the pathogenesis of macularedema in diabetic retinopathy except
Ans. (a) Retinal pigment epithelium dysfunctionRef: Harrision 17/e, p. 2286-2287; Yanoff and Duker 2/e, p. 877- 880; Parson's 20/e, p. 294 - 298Pathogenesis of macular edema is due to the same changes as overall for DR.
Retinal pigment epithelium dysfunction
Oxidative stress
VEGF
Increased protein kinase - C
Retina