Abstract
Purpose :
To identify preoperative factors that influence post-operative visual acuity of vitreomacular traction (VMT).
Methods :
Medical records of patients operated for VMT between 2014 and 2021 at the CUO-CHU de Québec - Université Laval were retrospectively reviewed. Patients with follow-up less than 3 months were excluded. Primary outcome was best-corrected visual acuity (BCVA) at final follow-up in logarithm of minimal angle of resolution (logMAR). A Wilcoxon Signed Ranks Test was used to compare final postoperative BCVA to preoperative BCVA. A multiple linear regression model was created for final BCVA adjusting for preoperative variables, including age, sex, preoperative BCVA, lens status, tamponade agent, and total follow-up.
Results :
Of the 189 patients operated for VMT, 110 (58.2 %) were female, and 79 (41.8%) were male. Median [Q1, Q3] age at presentation was 73 [66, 80] years, 37% of eyes were pseudophakic (37%, n=70). Air (48.1%, n=91) and SF6 gas (47.6%, n=90) were the most used tamponade agents. VMT was mostly associated with epiretinal membranes (ERM) (51.3%, n=97). Median preoperative BCVA and final BCVA were 0.44 [0.32, 0.66] and 0.32 [0.14, 0.67], respectively (p=0.005). The multiple linear regression showed that preoperative BCVA was the factor most associated with visual prognosis (β = 0.495; p<0.001).
Conclusions :
In this cohort, the surgical management of TVM does improve visual acuity. Preoperative BCVA seems to be the greatest predictor of postoperative visual potential.
This abstract was presented at the 2023 ARVO Annual Meeting, held in New Orleans, LA, April 23-27, 2023.