Few causes of Cystoid macular edema  After cataract surgery with or without an intraocular lens.  1 Diabetes mellitus and hypertension  2 Uveitis  3 After Prostaglandin analogues 4 Also has been reported after Retinitis pigmentosa 5 Age-related macular degeneration (ARMD) glaucoma central retinal vein (CRV) occlusion Commonest modality of dx by oct