Materials and Methods: Fifty-nine eyes of fifty-nine patients with successfully repaired macula-off RRD were evaluated by SD-OCT. Patients were divided into three groups based on their surgery types; scleral buckling surgery (thirty eyes), pars plana vitrectomy (twenty eyes) and pneumatic retinopexy (nine eyes). The postoperative best-corrected visual acuity (BCVA) and micro-structural findings at the fovea were evaluated.

Results: The SD-OCT was obtained after a mean of 30.03±27.5 months from the repair. Main foveal abnormalities were the disruption of the junction between the photoreceptor inner and outer segments (IS/OS) in fifteen (25.4%) eyes, while IS/OS line was intact in forty-four (74.6%) eyes. The disruption of external limiting membrane (ELM) was detected in eleven (18.6%) eyes. The postoperative BCVA in logMAR was significantly correlated with the integrity of the photoreceptor IS/OS and ELM signals detected by SD-OCT (p<0.001), (0.36±0.31 in cases without disrupted IS/OS line versus 0.94±0.43 in cases with disrupted IS/OS line). However, the BCVA and the micro-structural foveal findings did not vary among the different surgical techniques.

Conclusions: The integrity of the photoreceptor IS/OS junction and ELM signals detected by SD-OCT may account for visual restoration in patients with preoperative macula-off RRDs. The surgical technique does not have any influence on the visual acuity or foveal micro-structural findings. Keywords : Optical coherence tomography, spectral-domain optical coherence tomography, retinal detachment, macula-off retinal detachment