Inclusion Criteria:  clinical diagnosis of mild to moderate nonproliferative diabetic retinopathy (EDTRS) and senile cataract grade II nuclear/cortical or posterior subcapsular (LOCS III)  Exclusion Criteria:  anterior segment pathology (pseudoexfoliation syndrome, corneal opacities), posterior segment pathology (diabetic macular edema, previous diabetic macular edema treatment, previous retinal photocoagulation therapy, age related macular degeneration, retinal vascular diseases or history of uveitis) intraoperative complications (posterior capsular rupture, vitreus loss, intraocular lens not implanted in the capsular bag), postoperative complications (leaking incision, increased intraocular pressure, corneal edema or inflammation), therapy for glaucoma, patients on antihypertensive therapy, topical or systemic NSAIDs or steroids, previous steroid responders or hypersensitivity to the NSAID drug class, previous ocular trauma and intraocular surgery