Table 2
Indication for slit lamp examination after optic disc examination plus or minus screening and number of occludable angles detected
| Indication for referral | Test +ve Intervention group (n=685) | True +ve* Intervention group (n=160) | Test +ve Control group (n=32) | True +ve* Control group (n=2) | Total true +ve* (n=162) |
|---|---|---|---|---|---|
| *True +ve = gonioscopically occludable angle; ACD = anterior chamber depth <2.53 mm; ACD + IOP = anterior chamber depth <2.53 mm and intraocular pressure >24 mm Hg; IOP = IOP >24 mm Hg; CDR = cup disc ratio ≥0.7 or asymmetry ≥0.2. | |||||
| ACD | 613 | 149 | 0 | 0 | 149 |
| ACD + IOP | 31 | 10 | 0 | 0 | 10 |
| IOP | 25 | 1 | 1 | 0 | 1 |
| CDR | 15 | 0 | 28 | 0 | 0 |
| Other | 1 | 0 | 3 | 2 | 2 |
