Correlation between morphological changes in the macula and visual acuity before and after idiopathic macular epiretinal surgery / 眼科新进展

ABSTRACT

Objeetive To evaluate the morphological change in macuia in patients with idiopathic macuiar membrane and its relationship with visual acuity.Methods A retrospective study was conducted in 32 eye of 32 patients with idiopathic macuiar epiretinal membrane,who underwent the pars plana vitrectomy combined with internal membrane peeling.Then data on visual acuity and optical coherence variables,including the morphology and thickness of the fovea were collected and analyzed.Results Improvement in the best corrected visual acuity (BCVA) was observed in 29 patients,and the difference in the mean preoperative BCVA was statistically significant before surgery (0.25 ± 0.12) and after surgery (0.49 ± 0.28) (P ＜ 0.05).Unfortunately,3 patients maintained the same visual acuity after surgery.The thickness of the fovea decreased in all patients,from (385 ± 115) μm to (241 ± 64) μm (P ＜ 0.05).And the BCVA had a negative correlation with the thickness of the fovea.Conclusion The visual acuity of patients is closely related to the morphological feature of the macuia,and optical coherence tomography can be a useful tool for preoperative assessment and postoperative follow-up.