Abnormality of nerve fibre layer circumpapillary quadrants on optical coherence tomography, by glaucoma diagnosis
| Clinician diagnosis | Number of eyes | Abnormal superior quadrant | Abnormal inferior quadrant | Abnormal superior, inferior or both quadrants |
|---|---|---|---|---|
| Definite GON, n (%) | 1539 (54) | 863 (56) | 1063 (69) | 1270 (83) |
| Probable GON, n (%) | 615 (22) | 191 (31) | 174 (28) | 265 (43) |
| Not GON, n (%) | 681 (24) | 50 (7) | 24 (4) | 64 (9) |
GON, glaucomatous optic neuropathy.