Scheimpflug imaged corneal changes on anterior and posterior surfaces after collagen cross-linking

Ziad Hassan, Laszlo Modis, Eszter Szalai, Andras Berta, Gabor Nemeth

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5 Citations (Scopus)


AIM To compare the anterior and posterior corneal parameters before and after collagen cross-linking therapy for keratoconus. METHODS Collagen cross-linking was performed in 3 1 eyes of 3 1 keratoconus patients (mean age 3 0.6 ±8.9y). Prior to treatment and an average 71110 after therapy, Scheimpflug analysis was performed using Pentacam HR. In addition to corneal thickness assessments, corneal radius, elevation, and aberrometric measurements were performed both on anterior and posterior corneal surfaces. Data obtained before and after surgery were statistically analyzed. RESULTS In terms of horizontal and vertical corneal radius, and central corneal thickness no deviations were observed an average 71110 after operation. Corneal higher order aberration showed no difference neither on anterior nor on posterior corneal surfaces. During follow-up period, no significant deviation was detected regarding elevation values obtained by measurement in mm units between the 3 .0-8.0 mm-zones. CONCLUSION Corneal stabilization could be observed in terms of anterior and posterior corneal surfaces, elevation and higher order aberration values 7mo after collagen cross-linking therapy for keratoconus.

Original languageEnglish
Pages (from-to)313-316
Number of pages4
JournalInternational Journal of Ophthalmology
Issue number2
Publication statusPublished - 2014


  • Collagen cross-linking
  • Corneal back surface
  • Elevation
  • High resolution Pentacam
  • Higher order aberration

ASJC Scopus subject areas

  • Ophthalmology

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