Table 2.
Nasal TIA500 in the right phakic eyes (SS-OCT)
| N (%) | TIA500 (degrees)
|
P-value | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Range | 5th percentile | 10th percentile | 20th percentile | 90th percentile | |||
| Gender | 0.14 | ||||||||
| Male | 294 (45.4) | 28.17 | 11.62 | 0.0–60.2 | 9.9 | 13.3 | 18.0 | 43.3 | |
| Female | 353 (54.6) | 26.80 | 11.84 | 0.0–62.0 | 8.3 | 12.2 | 16.2 | 40.8 | |
| Age group (years) | 0.20 | ||||||||
| 40–49 | 102 (15.8) | 28.24 | 11.18 | 0.0–52.5 | 12.6 | 14.5 | 17.7 | 42.4 | |
| 50–59 | 160 (24.7) | 27.95 | 12.14 | 0.0–62.0 | 7.7 | 13.4 | 18.7 | 43.2 | |
| 60–69 | 213 (32.9) | 27.97 | 11.46 | 0.0–60.2 | 10.6 | 13.1 | 17.3 | 43.2 | |
| 70–79 | 172 (26.6) | 25.79 | 12.02 | 0.0–62.0 | 5.9 | 10.3 | 15.2 | 39.5 | |
| Refractive error | <0.01 | ||||||||
| Myopia | 182 (28.1) | 32.47 | 11.18 | 1.5–60.2 | 14.0 | 18.4 | 23.4 | 47.3 | |
| Emmetropia | 228 (35.2) | 26.54 | 11.36 | 0.0–62.0 | 7.7 | 11.7 | 16.3 | 40.0 | |
| Hyperopia | 154 (23.8) | 22.90 | 10.59 | 0.0–58.5 | 7.0 | 10.1 | 13.3 | 36.9 | |
| Total | 647 (100) | 27.43 | 11.75 | 0.0–62.0 | 9.0 | 12.7 | 17.3 | 42.7 | |
Note: Refractive error (SE) was defined as follows: myopia as mean SE ≤−1 D, emmetropia as mean SE ≤1 D and >−1 D and hyperopia as mean SE >1 D.
Abbreviations: TIA500, trabecular iris angle at 500 µm; SS-OCT, swept-source optical coherence tomography; SD, standard deviation; SE, spherical equivalent.