Patient details and demographics
| Tear size | Control | Small (<1 cm2) | Medium (>1–3 cm2) | Large (>3–5 cm2) |
| Number of cases | 6 | 4 | 2 | 2 |
| Mean age in years (range) | 21 (16–25) | 48 (35–58) | 50 (46–64) | 52 (42–58) |
| Mean duration of symptoms in months (range) | 4.0 (2–10) | 7.8 (2–15) | 6.3 (2–12) | 9.8 (5–24) |
| Mean number of steroid injections | 0 | 1.0 | 1.3 | 1.6 |