Objective  To investigate the relationship of choroidal thickness and visual acuity after successful repair of rhegmatogenous retinal detachment (RRD) in eyes without high myopia. Methods  Fifty-three eyes of 53 patients with RRD and without highly myopic eyes after anatomically successful surgical repair were enrolled in this study. The preoperative and postoperative best-corrected visual acuities (BCVA) were recorded. Spectral domain-optical coherence tomography (OCT) was used to assess the postoperative foveal structure, central foveal thicknesses (CFT) and choroidal thickness. The correlation between the postoperative BCVA and abnormality of the fovea, CFT and choroidal thickness was evaluated. According to the postoperative thickness of the choroid, the patients were divided into  le;150.00  mu;m group and ＞150.00  mu;m group; the improvement of postoperative BCVA in the two groups was analyzed. The state of inside and outside section (IS/OS) and the external limiting membrane (ELM) was divided into reconstructed and un-reconstructed categories. The postoperative BCVA, CFT and choroidal thickness of two types were comparatively analyzed. Results  At the last time of follow up, the mean BCVA was 0.52 plusmn;0.47. The results of spectral domain OCT showed that the mean CFT was (207.45 plusmn;63.63) and mean choroidal thickness was (175.46 plusmn;62.68)  mu;m. The postoperative BCVA correlated positively with IS/OS junction and choroidal thickness (r=4.92, 4.63; P＜0.05), but was insignificantly associated with ELM junction, whether subretinal fluids were present or not, whether epiretinal membrane was affected or not, whether there was macular edema or not and CFT (r=0.24, 1.20, 0.30, 0.03, 0.14; P＞0.05). Two weeks to three months after surgery, the improvement of BCVA in ＞150.00  mu;m group was significantly higher than that in  le;150.00  mu;m group (t=-2.318, P＜0.05). Compared the reconstructed with un-reconstructed IS/OS eyes, the differences of mean BCVA and mean choroidal thickness were statistically significantly different (t=-5.253, 2.396; P＜0.05). The difference of mean CFT was not statistically significant (t=1.454，P＞0.05). Compared the reconstructed with un-reconstructed ELM eyes, the differences of mean BCVA and mean choroidal thickness were statistically significantly different (t=-5.940, 3.563;P＜0.05). The difference of mean CFT was not statistically significant (t=1.117, P＞0.05). Conclusion  The choroidal thickness has a significant correlation with visual acuity after successful repair of RRD in eyes without high myopia.

Citation： SUN Jijun,YANG Jiasong,LI Conghui,et al.. The correlation between choroidal thickness and visual acuity after successful repair of rhegmatogenous retinal detachment. Chinese Journal of Ocular Fundus Diseases, 2013, 29(2): 131-135. doi: Copy