Table 1.
Comparison of central corneal thickness, endothelial cell parameters, and age in the four groups of subjects
| Feature | Group 1 (n = 29) | Group 2 (n = 26) | Group 3 (n = 19) | Group 4 (n = 30) | ||||
|---|---|---|---|---|---|---|---|---|
|
|
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| M (±SD) | CI | M (±SD) | CI | M (±SD) | CI | M (±SD) | CI | |
| Age (years) | 72 (±6.7) | 69.8–74.9 | 71 (±9) | 68.3–75.4 | 77 (±8) | 73.9–81.4 | 23.5 (±0.1) | 23.2–23.7 |
| CCT (μm) | 540 (±64) | 515.2–563.9 | 553 (±32) | 540.5–566.7 | 545 (±39) | 526.7–564.0 | 555 (±0.43) | 539–571 |
| ECD (cells/mm2) | 2633 (±430) | 2469.1–2796.4 | 2484 (±482) | 2289.6–2678.6 | 2394 (±416) | 2194.8–2596.1 | 2940 (±0.345) | 2811–3068 |
| 6A (%) | 60 (±10) | 56.6–64.4 | 60 (±10) | 55.7–64.1 | 64 (±10) | 59.4–69.3 | 66 (±0.10) | 62–70 |
| Ave (μm) | 390 (±66) | 364.9–415.2 | 397 (±58) | 373.3–419.9 | 386 (±43) | 385.2–480.9 | 345 (±0.42) | 329–361 |
Notes: Group 1: cataract; Group 2: glaucoma; Group 3: elderly healthy eyes; Group 4: young healthy eyes.
Abbreviations: n, number of subjects; CCT, central corneal thickness; ECD, endothelial cell density, 6A, regular hexagonal cells in endothelium; Ave, average size of endothelial cells; M, mean; SD, standard deviation; CI, confidence interval.