Ophthalmology All of the following take part in the pathogenesis of macular edema in diabetic retinopathy except: A Retinal pigment epithelium dysfunction B Oxidative stress C VEGF D Increased protein kinase-C 💡 Explanation All of the following take part in the pathogenesis of macular edema in diabetic retinopathy except: ✓ Correct Answer: A. Retinal pigment epithelium dysfunction