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Corneal Thickness Changes During Corneal Collagen Cross-linking With Ultraviolet-A Irradiation and Riboflavin

Progressive Keratoconus Clinical Trial

Official title:
Corneal Thickness Changes During Corneal Collagen Cross-linking With Ultraviolet-A Irradiation and Hypo-osmolar Riboflavin Solution in Thin Corneas

Clinical Trial Summary

The purpose of this study is to evaluate the corneal pachymetric variations during and after corneal collagen cross-linking (CXL) treatment with ultraviolet-A irradiation (UVA) and hypo-osmolar riboflavin solution in thin corneas.

Clinical Trial Description

To evaluate the corneal pachymetric variations during and after corneal collagen cross-linking (CXL) treatment with ultraviolet-A irradiation (UVA) and hypo-osmolar riboflavin solution in thin corneas.

Eighteen eyes of 18 patients, 11 men and 7 women, with progressive keratoconus and thinnest corneal thickness (TCT) less than 400µm were included in this study.

After the epithelium removal, iso-osmolar riboflavin was applied to the cornea every 3 minutes (30 min). Hipo-osmolar riboflavin was then applied every 20 seconds until the TCT reached 400µm. UVA irradiation was performed for 30 min. Pachymetry was recorded at the thinnest point of the cornea preoperatively, after epithelial removal, after iso-osmolar riboflavin, after hypo-osmolar riboflavin, after UVA irradiation, and at 1, 6 and 12 months. ;

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01485211
Study type Interventional
Source Instituto de Olhos de Goiania
Contact
Status Completed
Phase Phase 4
Start date January 2010
Completion date November 2011
View Details
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