Abstract:
PURPOSE:To compare visual and topographic outcomes 1 year after conventional (C-CXL) vs accelerated corneal cross-linking (A-CXL) in pediatric keratoconus (KC). DESIGN:Comparative, retrospective, consecutive case series. METHODS:Patients with topography-confirmed, progressive KC and a corneal thickness of ≥400 μm at the time of surgery were enrolled. Uncorrected (UCVA) and best phoropter-corrected visual acuity (BCVA) and normal maximum keratometry reading (Kmax) were measured at study entry and at the 12-month follow-up. Treatment failure rate was defined as the percentage of eyes with an increase in Kmax of more than 1.0 diopter during follow-up. The adverse event rate was the percentage of eyes with a loss of ≥2 Snellen lines of BCVA from baseline. This was a single-center analysis of 78 eyes of 58 patients that underwent C-CXL (39 eyes) and A-CXL (39 eyes). No eyes were lost to follow-up after 12 months. RESULTS:No significant difference between changes in 12 months after as compared to the time before CXL for UCVA (0.01 log MAR; 95% confidence interval -0.14 to 0.15, P = .944), BCVA (0.05 log MAR; 95% confidence interval -0.05 to 0.15, P = .310), and Kmax (-0.77 diopters; 95% confidence interval -2.20 to 0.65, P = .282) between the C-CXL and A-CXL group were observed. Treatment failure rate was observed in 9 of 39 eyes (23.1%) in C-CXL and in 6 of 39 eyes (15.4%) in A-CXL (P = .389). Adverse events were seen only in 1 eye in the C-CXL group. CONCLUSIONS:In this retrospective comparison, the accelerated approach was equally as effective as the conventional protocol to treat pediatric keratoconus.
journal_name
Am J Ophthalmoljournal_title
American journal of ophthalmologyauthors
Baenninger PB,Bachmann LM,Wienecke L,Thiel MA,Kaufmann Cdoi
10.1016/j.ajo.2017.08.015subject
Has Abstractpub_date
2017-11-01 00:00:00pages
11-16eissn
0002-9394issn
1879-1891pii
S0002-9394(17)30349-5journal_volume
183pub_type
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