Table 1.
Summary of vision measures
| Subject | Group | Age | Length of impairment (years) | Distance VA (logMAR) | Log Contrast sensitivity | Monocular scotoma | Estimated PRL (in visual field) | |
|---|---|---|---|---|---|---|---|---|
| (diameter) | (quadrant) † | |||||||
| 1 | AMD | 81 | 4 | 0.24 | 1.10 | 15° × 9° | R,L,S,I | Left 5° & Lower 10° |
| 2 | AMD | 76 | 2 | 0.58 | 1.65 | - | - | Central |
| 3 | AMD | 74 | 3 | 0.44 | 1.25 | 6° × 4° | L,S,I | Central |
| 5 | AMD | 77 | 5 | 0.26 | 1.45 | 7° × 10° | L,I | Upper 3° |
| 7 | AMD | 65 | 3 | 0.12 | 1.90 | - | - | Central |
| 8 | AMD | 81 | 4 | 0.20 | 1.30 | - | - | Central |
| 9 | AMD | 79 | 3 | 0.70 | 0.85 | 18° × 18° | R,L,S,I | Right 10° & Lower 10° |
| 10 | AMD | 87 | 8 | 0.76 | 1.35 | 8.4° × 9° | R,S,I | Left 5° |
| 11 | AMD | 78 | 5 | 0.32 | 1.10 | 2.5 × 1° | L,I | Left 5° |
| 12 | AMD | 79 | 10 | 0.88 | 1.40 | 15° × 25° | R,S,I | Left ‡ |
| 14 | AMD | 81 | 11 | 1.12 | 0.95 | 18° × 21° | R,L,S,I | Left 10° |
| 15 | AMD | 83 | 5 | 0.38 | 1.40 | 10° × 15° | L,S,I | Right 3° |
| 16 | AMD | 85 | 7.5 | 1.00 | 1.40 | 18° × 15° | R,L,S | Left & Lower 12° |
| 17 | NV | 68 | - | -0.10 | 2.00 | - | - | - |
| 18 | NV | 81 | - | 0.02 | 1.95 | - | - | - |
| 19 | NV | 82 | - | 0.04 | 1.85 | - | - | - |
| 20 | NV | 78 | - | -0.12 | 1.85 | - | - | - |
| 21 | NV | 66 | - | -0.04 | 1.85 | - | - | - |
| 22 | NV | 75 | - | 0.08 | 1.90 | - | - | - |
| 23 | NV | 73 | - | -0.18 | 1.95 | - | - | - |
| 24 | NV | 75 | - | -0.10 | 1.90 | - | - | - |
| 25 | NV | 76 | - | -0.12 | 1.90 | - | - | - |
| 26 | NV | 72 | - | -0.12 | 1.85 | - | - | - |
| 27 | NV | 75 | - | -0.12 | 1.85 | - | - | - |
| Mean (SD) | AMD | 78.9
(5.5) |
5.42
(2.84) |
0.54
(0.33) |
1.32
(0.28) |
- | - | - |
| NV | 74.6
(4.9) |
- | -0.07
(0.08) |
1.90
(0.05) |
- | - | - | |
| p-value | 0.10 | - | <0.01 | <0.01 | - | - | - | |
AMD = age-related macular degeneration NV = normal vision
†
Qualitative categorization of visual field loss: Right (R) bounded by 315° and 45°; Left (L) bounded by 135° and 225°; Superior (S) bounded by 45° and 135°; Inferior (I) bounded by 225° and 315°.
‡
The extent of the PRL could not be estimated for Sub 12 because no physiological blind was mapped due to large right scotoma.