Macular edema is caused by all except –
Causes of macular edema :-

Metabolic alteration :- Diabetes, retinitis pigmentosa, inherited cystoid macular edema (CME).
Ischemia CRVO, Diabetic retinopathy, severe hypertensive retinopathy, HELLP syndrome, vasculitis.
Mechanical force :- Vitreous traction on the macula.
Inflammation :- Intermediate uveitis, post-operative CME, choroidal inflammatory diseases.
Pharmacotoxicity :- Epinephrine (in Aphakia), Betaxolol, latanoprost..
Micro aneurysm
Capillary dilatation
Neovascularization
None