Abstract
Purpose :
To assess the longitudinal change in macular thickness and visual function in highly myopic eyes with and without myopic traction maculopathy (MTM).
Methods :
109 eyes of 65 highly myopic patients were enrolled from the Myopic and Pathologic Eyes in Singapore (MyoPES) cohort and followed for at least 12 months. Axial length (AL) and logMAR best-corrected visual acuity (BCVA) were measured. Swept-source optical coherence tomography (SS-OCT) was performed, and images were evaluated for MTM and central subfield retinal thickness (CRT). Macular sensitivity (MS) was measured with MP-3 microperimetry.
Results :
At baseline, mean age was 57.5±13.5 years and mean AL was 29.3±2.7mm and 20 eyes (18.4%) had MTM. On average, compared to eyes without MTM, eyes with MTM had significantly longer AL (30.8±1.7mm vs. 29.1±2.8mm, p=0.01), greater CRT (319±74um vs. 242±42um, p<0.001) and lower MS (19.8±4.1dB vs. 22.6±5.3dB, p=0.03). BCVA did not differ (0.33±0.39 vs. 0.24±0.29, p=0.22). At 1 year, MTM progressed in 5 eyes (25%) and resolved in 1 eye (5%). In eyes with progression, CRT increased from 302±57um to 359±83um (p=0.14). MS at 1 year in eyes with (20.2±4.1dB) and without MTM (21.8±5.5dB) did not significantly differ from baseline values (p=0.60 and 0.16, respectively).
Conclusions :
Although visual acuity did not differ, visual function as measured by microperimetry was significantly worse in highly myopic eyes with MTM than those without at baseline. Over the span of 1 year, no significant change in macular sensitivity was observed in eyes despite MTM progression.
This abstract was presented at the 2022 ARVO Annual Meeting, held in Denver, CO, May 1-4, 2022, and virtually.