Classification of patients seen in the FN study using the protocol definitions
| N | % (95% CI) | N | % (95% CI) | ||||
| Glaucoma unlikely (did not meet referral criteria at GERS or require follow-up) | 117 | 89.3 (82.9 to 93.5)% | |||||
| Glaucoma possible (did not meet referral criteria at GERS, but required follow-up) | 13 | 9.9 (5.9 to 16.2)% | Treated | 5 | 3.8 (1.6 to 8.6)% | ||
| OHT treated with drops | 3 | 60.0% | |||||
| PACS treated with laser | 2 | 40.0% | |||||
| Untreated | 8 | 6.1 (3.1 to 11.6)% | |||||
| OHT/glaucoma suspect | 4 | 50.0% | |||||
| PACS | 4 | 50.0% | |||||
| Glaucoma likely (did meet referral criteria at GERS but was not referred) | 1 | 0.8 (0 to 4.2)% | Treated | 0 | 0 (0.0 to 2.8)% | ||
| Untreated | 1 | 8.0 (0.0 to 4.2)% | |||||
| Glaucoma suspect | 1 | 100% | |||||
| Overall FN | 14 | 10.7 (6.4 to 17.1)% | Treated | 5 | 3.8 (1.6 to 8.6)% | ||
| Untreated | 9 | 6.9 (3.7 to 12.5)% | |||||
FN, false negative;GERS, Glaucoma Enhanced Referral Scheme;OHT, ocular hypertension;PACS, primary angle closure suspect.