Accelerated versus conventional corneal collagen cross-linking in the treatment of mild keratoconus: a comparative study

Figures & data

Figure 1 (A) Pentacam^® (HR Premium; Oculus Optikgeräte GmbH, Wetzlar, Germany) image before accelerated cross-linking. (B) Pentacam image 9 months after accelerated cross-linking.

Abbreviations: OD, oculus dexter (right eye); 3D, three dimensional.

Figure 2 K_max changes in the accelerated cross-linking group.

Abbreviation: K_max, steep keratometry.

Figure 3 K_max changes in the conventional cross-linking group.

Abbreviation: K_max, steep keratometry.

Table 1 Summary of the results of the accelerated and conventional cross-linking groups

	Accelerated group	Conventional group
Preoperative visual acuity	0.48±0.17	0.49±0.19
Visual acuity at 6 months	0.5±0.2	0.57±0.19
Visual acuity at 12 months	0.61±0.15	0.64±0.16
Preoperative maximum keratometry (D)	49.43±1.63	51.4 ±1.69
Maximum keratometry at 6 months (D)	48.83±1.52	50.47±1.42
Maximum keratometry at 12 months (D)	48.2±1.43	50.24±2
Preoperative central corneal thickness (μm)	484.57±19.45	464.18±29.15
Central corneal thickness at 6 months (μm)	458.42±18.32	438.27±21.77
Central corneal thickness at 12 months (μm)	469.64±20	451.73±24.39

Abbreviation: D, diopter.