Table 1 Clinical information for normal, sub-clinical keratoconus and keratoconus groups.

From: Value of corneal epithelial and Bowman’s layer vertical thickness profiles generated by UHR-OCT for sub-clinical keratoconus diagnosis

 

Normal (n = 81)

Sub-KC (n = 32)

KC (n = 37)

SE (D)

−3.78 ± 2.23

−3.75 ± 2.78

−7.72 ± 4.24*

BCVA (decimal VA)

1.1 ± 0.1

1.0 ± 0.1

0.5 ± 0.3*

Max-K (D)

44.2 ± 1.5

44.1 ± 1.0

54.0 ± 7.9*

 

(95% CI: 43.9–44.5)

(95% CI: 43.7–44.5)

(95% CI: 51.5–56.5)

Min-K (D)

43.0 ± 1.5

42.9 ± 1.0

48.6 ± 6.7*

 

(95% CI: 42.7–43.3)

(95% CI: 42.5–43.3)

(95% CI: 46.4–50.8)

Avg-K (D)

43.6 ± 1.4

43.5 ± 1.0

51.3 ± 7.2*

 

(95% CI: 43.3–43.9)

(95% CI: 43.1–43.9)

(95% CI: 49.0–53.6)

Ast-K (D)

1.2 ± 0.7

1.2 ± 0.7

5.4 ± 3.5*

 

(95% CI: 1.0–1.4)

(95% CI: 0.9–1.5)

(95% CI: 4.3–6.5)

  1. Normal, normal group; Sub-KC, sub-clinical keratoconus group; KC, keratoconus group; n, number of eyes; SE, spherical equivalent; BCVA, best corrected visual acuity; Max-K, maximum keratometry; Min-K, minimum keratometry; Avg-K, average keratometry; Ast-K, astigmatic keratometry; 95% CI, 95% confidence interval; VA, visual acuity; D, diopter; *P < 0.05 compared to the normal group.
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