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Related Experiment Video

Updated: Feb 14, 2026

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
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[Corneal densitometry : Value for keratoconus diagnostics].

M Alnawaiseh1, N Eter2

  • 1Klinik für Augenheilkunde, Universitätsklinikum Münster, Domagkstraße15, 48149, Münster, Deutschland. maged.alnawaiseh@ukmuenster.de.

Der Ophthalmologe : Zeitschrift Der Deutschen Ophthalmologischen Gesellschaft
|February 23, 2018
PubMed
Summary
This summary is machine-generated.

Corneal densitometry reveals reduced transparency in keratoconus patients. Following corneal cross-linking (CXL), transparency initially decreases due to haze but improves over time, potentially reaching normal levels within 2-3 years.

Keywords:
Corneal crosslinkingCorneal densitometryCorneal transparencyKeratoconusScheimpflug imaging

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Area of Science:

  • Ophthalmology
  • Corneal Imaging
  • Biomedical Optics

Background:

  • Corneal densitometry, utilizing the Scheimpflug principle, offers noninvasive quantitative assessment of corneal optical quality.
  • It allows for detailed evaluation of corneal transparency across different layers and annular regions.
  • This technique is valuable for assessing conditions affecting corneal clarity.

Purpose of the Study:

  • To discuss the application of corneal densitometry measurements.
  • To summarize findings related to corneal densitometry in patients with keratoconus.
  • To analyze the impact of corneal cross-linking (CXL) on corneal transparency.

Main Methods:

  • Selective literature review.
  • Analysis of collected patient data.
  • Application of Scheimpflug-based corneal densitometry.

Main Results:

  • Keratoconus patients exhibit significantly higher corneal densitometry values than healthy controls.
  • Densitometry values correlate with the severity of keratoconus.
  • Following CXL, initial haze causes increased densitometry (decreased transparency), followed by gradual improvement in transparency over 24-36 months.

Conclusions:

  • Corneal transparency is compromised in individuals with keratoconus.
  • Corneal cross-linking (CXL) initially leads to reduced transparency due to haze formation.
  • Corneal transparency demonstrates a progressive improvement in the long term after CXL.