Table 3.
Mean change in visual function over 3-year intervals in study population with RP
| Variable | Baseline | Follow-up | P-value |
|---|---|---|---|
| CRAE | 94.9±2.0 | 90.7±1.9 | 0.001 |
| CRVE | 155.6±3.0 | 152.3±2.8 | 0.014 |
| AVR | 0.6±0.009 | 0.6±0.010 | 0.086 |
| Visual acuity (logMAR) | 0.10±0.04 | 0.17±0.05 | 0.008 |
| Mean deviation | −15.6±1.3 | −16.7±1.4 | <0.0001 |
| CMT | 226.0±11.5 | 209.4±12.2 | 0.013 |
| Visual field area (V4e) | 103.0±14.9 | 77.9±13.6 | <0.0001 |
Notes: Data are means ± standard deviations; paired t-test for continuous variables, as appropriate.
Abbreviations: AVR, arteriovenous ratio; CMT, central macular thickness; CRAE, central retinal artery equivalent; CRVE, central retinal vein equivalent; logMAR, logarithm of the minimum angle of resolution; RP, retinitis pigmentosa; visual field area (V4e), Goldmann visual field test area for V4e.