Table 2.

Quantitative analysis of visual functional outcomes and effect sizes

Outcome Measure	No. of Patients	Pre-op	Post-op	Effect Size (95% CI)
BCVA	6	1.91 (0.95, 2.45)	0.30 (0.14, 2.45)	0.80 (-0.11, 1.66)
VFI (%)	4	11 (2, 36)	91 (32, 100)	1.37 (0.00, 2.69)
MD (dB)	4	-28.02 (-30.81, -20.27)	-3.33 (-22.21, 0.58)	1.23 (-0.07, 2.46)

VFI, visual field index. MD, mean deviation. Effect sizes (Hedges’ g) and corresponding 95% CIs were calculated from paired observations to quantify the magnitude of clinical change, with g ≥ 0.8 interpreted as a large effect. Visual field parameters (VFI and MD) were assessed in a subset of 4 patients capable of completing the examination