Baseline demographic characteristics of GLASS trial participants
| Characteristics | All (N=49) | Intervention (n=23) | Control (n=26) | P value |
| Age, mean±SD | 33.2±4.0 | 33.1±3.7 | 33.2±4.3 | 0.82 |
| Sex, n (%) | ||||
| Female | 23 (46.9) | 12 (52.2) | 12 (46.2) | 0.67 |
| Male | 26 (53.1) | 11 (47.8) | 14 (53.8) | |
| Year of training, median (mean) | 2 (2.5) | 2 (2.5) | 2 (2.4) | |
| MCQ score (%), mean±SD | 75.7±9.7 | 77.4±8.5 | 74.2±10.6 | 0.29 |
| Trabeculectomy procedures assisted or part-performed, mean (median) | 0 (0) | 0 (0) | 0 (0) | |
GLASS, GLAucoma Simulated Surgery; MCQ, multiple choice question.