Rates of different eye diseases in the RCGP study and the Oxford-FPA study
| Condition | RCGP Study (No of cases) | Oxford-FPA Study (No of cases) | Rate ratio RCGP:Oxford-FPA |
|---|---|---|---|
| Conjunctivitis | 100.0 (5646) | 5.9 (183) | 16.9 |
| Keratitis | 3.5 (199) | 1.7 (54) | 2.0 |
| Iritis | 3.4 (187) | 1.6 (51) | 2.1 |
| Lacrimal disease | 4.4 (246) | 2.0 (63) | 2.2 |
| Strabismus | 1.0 (59) | 1.1 (33) | 0.9 |
| Cataract | 2.9 (170) | 1.8 (48) | 1.6 |
| Glaucoma | 2.2 (127) | 2.1 (58) | 1.0 |
| Retinal detachment | 0.7 (38) | 1.0 (30) | 0.7 |
| Retinal vascular lesions | 1.2 (71) | 0.9 (25) | 1.4 |
Rates are per 10 000 person years of observation and are directly standardised for age (5 year age groups) using the combined study populations as the reference standard.