Recent studies on cataract surgery in diabetics tend to report a lower incidence of complications and better visual outcomes due to better preoperative management of retinopathy, evolutions in operative techniques, better glycemic and hypertensive control, and better surgical technique of phacoemulsification. Diabetic patients with little or no retinopathy enjoy good visual prognosis similar to that in individuals without diabetes.
It is important to differentiate diabetic macular edema (DME) from Pseudophakic cystoid macular edema (PCME), especially because people with diabetes are more prone to develop PCME.

The aim of this work was to diagnose macular changes pre- and post-cataract surgery and to identify changes in central foveal thickness (CFT) using spectral domain optical coherence tomography (SD-OCT) relative to age, sex, and presence of concomitant ophthalmic pathologies in diabetic patients.
A prospective, comparative, non-randomised cross sectional study was done on 50 eyes, subdivided into two main groups; group A involves 25 eyes of diabetic patients (Diabetic group) and group B involves 25 eyes of non-diabetic patients (control group). Both groups will be examined once before surgery and after 1, 3, and 6 month post-operative after obtaining an informed consent from participants and approval of the study by Alexandria University Ethical Committee.



Evaluation of cystoid macular edema (CME) and visual outcome after phacoemulsification in patients with diabetes and its relation with oxidative stress along with other ailing factors will be of great use academically and clinically in modern ophthalmology.