Distribution of retinal damage in each grade. Five randomly chosen sections from each eye are categorised into four grades (n=35)
| (A) Perfusion at 8°C | ||||||
|---|---|---|---|---|---|---|
| Grade | ||||||
| Eyes | 1 | 2 | 3(a) | 3(b) | 4(a) | 4(b) |
| 1 | 3 | 2 | 0 | 0 | 0 | 0 |
| 2 | 3 | 2 | 0 | 0 | 0 | 0 |
| 3 | 4 | 1 | 0 | 0 | 0 | 0 |
| 4 | 3 | 2 | 0 | 0 | 0 | 0 |
| 5 | 2 | 2 | 1 | 0 | 0 | 0 |
| 6 | 2 | 2 | 1 | 0 | 0 | 0 |
| 7 | 1 | 3 | 1 | 0 | 0 | 0 |
| Total | 18 | 14 | 3 | 0 | 0 | 0 |
| (B) Perfusion at 22°C | ||||||
| Grade | ||||||
| Eyes | 1 | 2 | 3(a) | 3(b) | 4(a) | 4(b) |
| 1 | 3 | 2 | 0 | 0 | 0 | 0 |
| 2 | 3 | 2 | 0 | 0 | 0 | 0 |
| 3 | 1 | 3 | 1 | 0 | 0 | 0 |
| 4 | 1 | 2 | 2 | 0 | 0 | 0 |
| 5 | 2 | 1 | 2 | 0 | 0 | 0 |
| 6 | 3 | 2 | 0 | 0 | 0 | 0 |
| 7 | 0 | 1 | 3 | 0 | 1 | 0 |
| Total | 13 | 13 | 8 | 0 | 1 | 0 |
| (C) Perfusion at 38°C | ||||||
| Grade | ||||||
| Eyes | 1 | 2 | 3(a) | 3(b) | 4(a) | 4(b) |
| 1 | 0 | 0 | 4 | 0 | 1 | 0 |
| 2 | 0 | 0 | 2 | 1 | 1 | 1 |
| 3 | 0 | 1 | 3 | 0 | 1 | 0 |
| 4 | 0 | 0 | 2 | 0 | 1 | 2 |
| 5 | 0 | 0 | 2 | 0 | 2 | 1 |
| 6 | 0 | 1 | 2 | 0 | 2 | 0 |
| 7 | 0 | 0 | 3 | 1 | 1 | 0 |
| Total | 0 | 2 | 18 | 2 | 9 | 4 |