Table 2 Main clinical features of the two groups of eyes analyzed
From: Study and characterization of morphogeometric parameters to assist diagnosis of keratoconus
Clinical features | Healthy N = 124 | Keratoconic N = 63 | p value (statistical test) |
|---|---|---|---|
Mean ± SD (range) | Mean ± SD (range) | ||
Age (years) | 39.8 ± 18.6 (7 to 73) | 37.02 ± 11.8 (14 to 69) | 0.09 (Mann–Whitney) |
Axial length (mm) | 23.99 ± 1.60 (20.20 to 28.99) | 24.20 ± 1.31 (21.82 to 26.50) | 0.33 (Student’s t-test) |
Corrected distance visual acuity | 0.99 ± 0.09 (0.4 to 1.22) | 0.80 ± 0.30 (0.12 to 1.09) | 0.0001 (Mann–Whitney) |
Sphere (D) | − 0.51 ± 3.29 (− 12.38 to 9.00) | − 2.01 ± 3.70 (− 17.00 to 3.00) | 0.0001 (Mann–Whitney) |
Cylinder (D) | − 0.80 ± 1 (− 5.75 to 0.00) | − 3.10 ± 2.40 (− 10.00 to 0.00) | 0.0001 (Mann–Whitney) |
Spherical equivalent (D) | − 0.99 ± 3.28 (− 12.50 to 8.20) | − 3.61 ± 3.89 (− 18.00 to 1.50) | 0.0001 (Mann–Whitney) |
Minimal corneal thickness (µm) | 539.98 ± 32.70 (459.01 to 629.19) | 439.78 ± 56.78 (315.08 to 549.08) | 0.0001 (Mann–Whitney) |
Central corneal thickness (µm) | 543.07 ± 33.01 (464.10 to 633.84) | 455.00 ± 49.12 (319.01 to 578.1) | 0.0001 (Mann–Whitney) |
Anterior chamber depth (mm) | 2.89 ± 0.44 (1.79 to 3.70) | 3.41 ± 0.4 (2.60 to 4.3) | 0.29 (Mann–Whitney) |
White to white corneal diameter (mm) | 11.99 ± 0.48 (11.22 to 13.33) | 12.06 ± 0.50 (11.09 to 13.71) | 0.71 (Mann–Whitney) |