Research Article
Effect of Age on Pentacam Keratoconus Indices
Table 3
Mean ± two and three standard deviation values of the indices having statistically significant differences among different age groups.
| | <21 years | 21–40 years | >40 years | | M ± 2 SD | M ± 3 SD | M ± 2 SD | M ± 3 SD | M ± 2 SD | M ± 3 SD |
| | AE from BFS | 5.4 | 6.6 | 5.6 | 7.0 | 3.5 | 4.6 | | PE from BFS | 7.5 | 10.5 | 12.4 | 16.6 | 11.9 | 15.1 | | PE minus AE from BFS | 4.2 | 7.1 | 9.0 | 12.9 | 10.1 | 13.1 | | PPI avg | 1.042 | 1.174 | 1.102 | 1.231 | 0.879 | 0.968 | | PPI max | 1.284 | 1.416 | 1.421 | 1.589 | 1.221 | 1.350 | | ART avg | 444.9 | 310.4 | 440.7 | 330.5 | 525.4 | 381.7 | | ART max | 375.5 | 294.1 | 348.8 | 266.3 | 407.8 | 317.2 | | Diagonal decentration | 0.871 | 1.046 | 1.133 | 1.377 | 0.846 | 1.037 |
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