Material-Method: Preoperative and postoperative OCT images of the cases were analyzed retrospectively. Initial and final best corrected visual acuity (BCVA), central macular thickness (CMT), epiretinal membrane (ERM), presence of vitreomacular traction (VMT), disorganization of the retinal inner layers (DRIL), ellipsoid zone (EZ) and external limiting membrane (ELM) disruption length were recorded.

Results: Initial and postoperative BCVA of the 16 included patients were 0.82±0.38 and 0.56±0.45 logMAR (p=0.02), respectively. While no significant difference was found between the initial and postoperative CMT (249.31±128.92 vs. 292.75±186.75 ?m p=0.15), DRIL length increased significantly (444.60±290.81 vs. 585.40±324.10 ?m p=0.02). There was a strong correlation between preoperative DRIL length and postoperative BCVA (p<0.05, r=0.78).

Conclusion: Simultaneous phacoemulsification and IVB treatment in DME cases may lead to an increase in DRIL length. The use of OCT parameters may be useful to estimate the final BCVA in these cases. Keywords : Diabetic macular edema, phacoemulsification, optical coherence tomography, intravitreal bevacizumab