Outcome of the visual function tests
| Visual function test | Minimum | Maximum | Median | Interquartile range | Correlation with VCM1 r(p value) |
|---|---|---|---|---|---|
| VA, visual acuity; CS, contrast sensitivity; CV, colour vision; VF, visual field; NPL, no perception of light; U, unrecordable as VA was worse than counting fingers. Statistically significant results are in bold. | |||||
| LogMAR VA (Snellen equivalent)) | |||||
| Better eye | −0.2 (20/12.5) | 0.64 (20/80) | 0.01 (20/20) | −0.10–0.10 (20/15–20/25) | 0.03 (0.85) |
| Worse eye | −0.1 (20/15) | NPL | 0.19 (20/32) | 0.03–0.43 (20/20–20/50) | 0.33 (0.035) |
| Binocular | −0.26 (20/10) | 0.66 (20/100) | 0.02 (20/20) | −0.10–0.12 (20/15–20/25) | 0.07 (0.68) |
| CS (log units) | |||||
| Better eye | 0.95 | 1.80 | 1.60 | 1.40–1.65 | 0.01 (0.96) |
| Worse eye | 0.00 | 1.95 | 1.50 | 1.26–1.65 | −0.27 (0.08) |
| Binocular | 0.95 | 1.95 | 1.65 | 1.56–1.88 | −0.12 (0.47) |
| CV (total error score) | |||||
| Better eye | 15 | 599 | 88 | 63–157 | −0.08 (0.60) |
| Worse eye | 18 | U | 82 | 58–136 | 0.14 (0.39) |
| Binocular | 17 | 84 | 74 | 47–130 | 0.05 (0.73) |
| VF (% test points seen) | |||||
| Better eye | 76 | 100 | 98 | 94–100 | −0.24 (0.12) |
| Worse eye | 0 | 100 | 97 | 88–99 | −0.34 (0.026) |
| Binocular | 42 | 100 | 98 | 94–100 | −0.35 (0.02) |