Rate of peripheral anterior synechiae according to mean gonioscopic width* in right eyes
| Mean angle width | |||||
|---|---|---|---|---|---|
| 0° | 10° | 20° | 30° | ⩾40° | |
| *Mean gonioscopic width calculated by adding Shaffer grade in each of four quadrants and dividing by 4; 0 = 0 in all quadrants, 1 = 0.25–1.25, 2 = 1.5–2.25, 3 = 2.5–3.25, 4 = 3.5–4. | |||||
| Eyes having previous intraocular surgery and secondary pathology such as iris neovascularisation were excluded. | |||||
| Mongolia | |||||
| Number with PAS (%) | 1 (100%) | 16 (31%) | 11 (8.5%) | 2 (0.6%) | 1 (0.3%) |
| Odds of PAS (95% CI) | 168 (21.7 to 1307) | 35.3 (4.5 to 276) | 2.1 (0.19 to 23.7) | 1 | |
| Singapore | |||||
| Number with PAS (%) | 0 | 17 (17.2%) | 22 (7.6%) | 6 (1.7%) | 1 (0.4%) |
| Odds of PAS (95% CI) | 53.5 (7.0 to 408.1) | 21.3 (2.9 to159.5) | 4.5 (0.5 to 37.7) | 1 | |