Analysis of 2-Year CXL Results in Keratoconus Patients
Narrative Responses:
Purpose
To assess and analyze the two-year results of corneal collagen cross-linking with riboflavin using ultraviolet-A light in the treatment of keratoconus and to evaluate the efficacy of this procedure.
Methods
The preoperative and post preoperative data of 58 eyes of 40 keratoconus patients were revised. The intervention was only conventional corneal collagen cross linking in an indicated keratoconus patient. The data included UCVA,BCVA, slit lamp examination, keratometry, refractometry, pachymetry and corneal topography. Postoperative data was collected at 1,3,6,12, 24 months.
Results
Mean age 16.9 ± 6.35 years. 58 eyes of 40 patients with follow-up at least 24 months analyzed. Preoperative values on treatment day were compared with postoperative values of 24-month examination. BCVA improved at least one line in 53.4% (31/58) of eyes, remained stable in 36.2% of eyes (P=0.006) and decreased by only one line in 10.3%. Astigmatism remained stable in 86.2% of eyes and decreased by mean of 1.20 D 13.8% in eyes. K value of apex decreased by mean of 2.73 D in 65.5% of eyes (P=0.004), remained stable in 25.9% and increased by 1.00 D in 8.6%.
Conclusion
This study proved that corneal cross linking is beneficial as both visual preserving and visual improving procedures.