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Related Experiment Video

Updated: May 9, 2026

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis

Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis

Published on: November 12, 2015

Collagen cross-linking in thin corneas.

Prema Padmanabhan¹, Abhishek Dave

¹Department of Cataract, Cornea and Refractive Surgery, Medical Research Foundation, Sankara Nethralaya, Chennai, Tamil Nadu, India.

Indian Journal of Ophthalmology

|August 9, 2013

Summary

This summary is machine-generated.

Corneal collagen cross-linking (CXL) is standard for progressive keratoconus. Modifications are being explored for thin corneas (under 400 μm) to expand treatment options safely.

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Published on: January 31, 2014

Area of Science:

Ophthalmology
Corneal Surgery
Biomedical Engineering

Background:

Corneal collagen cross-linking (CXL) is the established treatment for progressive keratoconus.
The standard CXL protocol requires a minimum corneal thickness of 400 μm to protect intraocular tissues from ultraviolet-A (UVA) radiation.
Many keratoconus patients present with corneas thinner than 400 μm, excluding them from standard CXL.

Purpose of the Study:

To review modifications of the standard CXL procedure for patients with thin corneas.
To assess the potential safety and efficacy of these alternative CXL techniques.
To highlight the need for further research into CXL for thin corneas.

Main Methods:

Review of existing literature on modified CXL protocols for thin corneas.
Discussion of techniques such as transepithelial cross-linking, pachymetry-guided debridement, and hypoosmolar riboflavin use.
Analysis of the rationale behind these modifications for patient safety and treatment expansion.

Main Results:

Several modifications to standard CXL exist for treating thin corneas.
Techniques include transepithelial cross-linking, adjusted debridement, and altered riboflavin solutions.
Current clinical data for these modified techniques is limited.

Conclusions:

Modified CXL techniques offer potential treatment options for keratoconus patients with thin corneas.
These modifications aim to provide safety while expanding CXL accessibility.
Further rigorous studies are essential to validate the efficacy and safety of these modified CXL approaches.