Baseline characteristics in the two groups
| Baseline variables | Moderate | Severe | ||
| Control (n=25) | Amniotic membrane transplantation (n=25) | Control (n=25) | Amniotic membrane transplantation (n=25) | |
| Age† | 25 (4–45) | 18 (5–52) | 14 (3–61) | 13 (6–60) |
| Sex* | ||||
| Male | 23 (92.00) | 25 (100.00) | 21 (84.00) | 18 (72.00) |
| Female | 2 (8.00) | 0 (0.00) | 4 (16.00) | 7 (28.00) |
| Mode of injury* | ||||
| Alkali | 18 (72.00) | 17 (68.00) | 18 (72.00) | 19 (76.00) |
| Acid | 6 (24.00) | 4 (16.00) | 4 (16.00) | 6 (24.00) |
| Thermal | 1 (4.00) | 4 (16.00) | 3 (12.00) | 0 (0.00) |
| Duration at presentation† (days) | 3 (0–14) | 6 (1–15) | 7 (1–15) | 7 (1–15) |
| Visual acuity† | ||||
| Logmar | 0.8 (0.13–4) | 0.5 (0–3) | 2 (0.3–4) | 3 (0.2–4) |
| Lid involvement* | ||||
| 0 (absent) | 9 (45.00) | 5 (27.78) | 9 (36.00) | 12 (48.00) |
| 1 (present) | 11 (55.00) | 13 (72.22) | 16 (64.00) | 13 (52.00) |
| Symblepharon* | ||||
| 0 (absent) | 25 (100.00) | 24 (96.00) | 20 (80.00) | 20 (80.00) |
| 1 (present) | 0 (0.00) | 1 (4.00) | 5 (20.00) | 5 (20.00) |
| Conjunctival involvement† (%) | 0 (0–25) | 20 (0–50) | 25 (0–100) | 25 (0–100) |
| Size of epithelial defect (mm2)† | 22.8 (4–144) | 42 (3.4–100) | 144 (16–144) | 144 (25–144) |
| Corneal haze† (%) | 20 (0–100) | 20 (0–80) | 80 (20–100) | 77.5 (50–100) |
| Grade of corneal clarity† | 1 (0–4) | 1 (0–2) | 3 (1–4) | 3 (0–4) |
| Corneal vascularisation | 0 | 0 | 0 | 0 |
| Limbal ischaemia† (clock hours) | 2 (1–6) | 5 (2–6) | 10 (7–12) | 9 (7–12) |