Table 4 Summary of visual and corneal tomographic outcomes of 31 patients with keratoconus at baseline, 12 months, 24 months and at 36 months following nurse-led corneal crosslinking (CXL).

From: Two-to-three-year effectiveness and safety of nurse-led accelerated corneal crosslinking for progressive keratoconus: The Birmingham and Midland Eye Centre Study

Parameters

Baseline

12 months

P value*

24 months

P value*

36 months

P value*

CDVA, logMAR

0.31 (0.25)

0.29 (0.27)**

0.82

0.25 (0.18)

0.08

0.26 (0.18)

0.15

Kmax, D

60.6 (6.4)

59.7 (7.4)

0.020

59.3 (7.1)

<0.001

59.2 (7.2)

<0.001

K1, D

48.3 (3.5)

48.1 (3.9)

0.35

48.4 (3.8)

0.69

48.3 (3.8)

0.93

K2, D

52.1 (4.3)

51.9 (4.6)

0.41

51.7 (4.6)

0.07

51.6 (4.6)

0.038

TCP, μm

443.0 (36.4)

431.1 (58.9)

0.20

439.7 (36.7)

0.20

440.9 (37.3)

0.47

  1. Values are presented in mean (standard deviation).
  2. *Paired t test was used for comparing the findings between the baseline and several post-CXL time points (including 12, 24, and 36 months).
  3. **CDVA was missing on 6 participants.
  4. CDVA corrected-distance-visual-acuity, D dioptres, Kmax maximum keratometric reading, K1 flattest keratometric meridian, K2 steepest keratometric meridian, TCP thinnest corneal pachymetry.
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