Transepithelial Diluted Alcohol and Iontophoresis-Assisted Corneal Crosslinking for Progressive Keratoconus in Adults: 4-Year Clinical Results

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Bilgihan K., Uysal B. S., Ozmen C., Eskalen O., Gurelik G.

CORNEA, cilt.41, sa.4, ss.462-469, 2022 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 4
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1097/ico.0000000000002821
  • Dergi Adı: CORNEA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, EMBASE, MEDLINE, Veterinary Science Database
  • Sayfa Sayıları: ss.462-469
  • Anahtar Kelimeler: keratoconus, standard corneal crosslinking, iontophoresis-assisted transepithelial corneal crosslinking, DEMARCATION LINE, A LIGHT, RIBOFLAVIN, PERMEABILITY, PROTOCOLS, VIVO
  • Gazi Üniversitesi Adresli: Evet

Özet

Purpose: The aim of this study was to compare the 4-year clinical outcomes of transepithelial diluted alcohol and iontophoresis-assisted corneal crosslinking (DAI-CXL) and standard corneal crosslinking (S-CXL) in adults with progressive keratoconus. Methods: This retrospective study included 36 eyes of 36 keratoconic patients who underwent DAI-CXL (n = 18) or S-CXL (n = 18). Best spectacle-corrected visual acuity (BSCVA) and corneal topography parameters were analyzed at baseline and at 1, 2, 3, and 4 years of follow-up. Corneal demarcation line depth (DLD) at 1 month was measured, and the relation of DLD with corneal thickness (DL%) was assessed. Results: BSCVA improved significantly only in S-CXL (P = 0.01). A significant decrease in maximum keratometry and mean keratometry occurred at 4 years in both groups (all P < 0.05), and these changes were similar in both groups (all P > 0.05). There was a significant reduction in the thinnest corneal thickness in S-CXL (P = 0.01); however, the mean thinnest corneal thickness in DAI-CXL remained stable (P = 0.094). Higher-order aberrations and coma aberration decreased significantly in both groups at 4 years (all P < 0.05), with a higher decrease in S-CXL (all P < 0.05). Spherical aberration showed a significant reduction only in S-CXL (P = 0.005). In contrast to the similar mean DLD in both groups, DL% in DAI-CXL was significantly greater than that in S-CXL (P = 0.032). There were no correlations between the improvement in BSCVA, maximum keratometry, mean keratometry, higher-order aberrations, and the mean DLD and DL% (all P > 0.05). Conclusions: DAI-CXL was as effective as S-CXL in arresting the progression of keratoconus and showed similar clinical results to S-CXL at the 4-year follow-up.