Correlation between Outer Nuclear Layer Thickness and Visual Acuity with Duration of Retinal Detachment

Taw Dipu, Thakar Meenakshi, Bansal Pooja, Gautam Akanksha, Gupta Priyadarshi, Pavitra Banu, Dacruz Russel

Abstract: Purpose: To correlate outer nuclear layer thickness and visual acuity with duration of detachment. Design: It was a prospective interventional study. Method: The population consisted of patients treated for rhegmatogenous retinal detachment. Post RRD repair 45 patients were divided into three groups. Group A operated within 1 month of RRD, Group B within 1 - 3 months, and Group C after 3 months. ONL Thickness and Best corrected visual acuity was compared at 4 months. Statistical analysis: The variables were compared using unpaired t - test. These variables were correlated with duration of retinal detachment using Pearson?s correlation coefficient and ANOVA. Results: The difference in ONL thickness was significant between Group A and C (p<0.001), Group B and C (p=0.049) but insignificant between Group A and B (p=0.246). The difference in BCVA was significant between Group A and B (p=0.028), between Group A and C (p<0.001) and insignificant between Group B and C (p=0.052). With each day of RD there was 0.004 logMAR loss of vision. Inner Segment - Outer segment disruption and External limiting layer disruption was significant between Group A and B and Group A and C and insignificant between Group B and C. Conclusions: ONL restoration were better if operated within 3 months but BCVA was significantly better when operated within 1 month of retinal detachment. Other OCT parameters like IS - OS disruption, ELM disruption, intraretinal and sub retinal fluid post RD repair were associated with poorer BCVA and found more with longer duration of retinal detachment.

Keywords: outernuclear layer, retinal detachment, optical coherence tomography

How to Cite?: Taw Dipu, Thakar Meenakshi, Bansal Pooja, Gautam Akanksha, Gupta Priyadarshi, Pavitra Banu, Dacruz Russel, "Correlation between Outer Nuclear Layer Thickness and Visual Acuity with Duration of Retinal Detachment", Volume 10 Issue 11, November 2021, International Journal of Science and Research (IJSR), Pages: 636-641, https://www.ijsr.net/getabstract.php?paperid=SR211110133331, DOI: https://dx.doi.org/10.21275/SR211110133331