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Corneal Collagen Crosslinking With Riboflavin for Keratoconus Treatment: A Brazilian Study

2014-08-27 03:31:59 | BioPortfolio

Summary

Cross-linking of the cornea increases the mechanical and biochemical stability of the stromal tissue. The purpose of this study is to assess the effectiveness of riboflavin-ultraviolet light induced cross-linking of corneal collagen in improving visual acuity and reducing progression of keratoconus in the Brazilian population.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Single Blind (Outcomes Assessor), Primary Purpose: Treatment

Conditions

Keratoconus

Intervention

Corneal Collagen Crosslinking

Location

Clementino Fraga Filho University Hospital
Rio de Janeiro
RJ
Brazil
21941-913

Status

Recruiting

Source

Federal University of Rio de Janeiro

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:31:59-0400

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Medical and Biotech [MESH] Definitions

The measurement of curvature and shape of the anterior surface of the cornea using techniques such as keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing and videokeratography. This measurement is often applied in the fitting of contact lenses and in diagnosing corneal diseases or corneal changes including keratoconus, which occur after keratotomy and keratoplasty.

A layer of acellular matrix that lies beneath the CORNEAL EPITHELIUM and above the CORNEAL STROMA. It consists of randomly arranged COLLAGEN fibers in a condensed bed of intercellular substance. It provides stability and strength to the cornea.

A noninflammatory, usually bilateral protrusion of the cornea, the apex being displaced downward and nasally. It occurs most commonly in females at about puberty. The cause is unknown but hereditary factors may play a role. The -conus refers to the cone shape of the corneal protrusion. (From Dorland, 27th ed)

New blood vessels originating from the corneal veins and extending from the limbus into the adjacent CORNEAL STROMA. Neovascularization in the superficial and/or deep corneal stroma is a sequel to numerous inflammatory diseases of the ocular anterior segment, such as TRACHOMA, viral interstitial KERATITIS, microbial KERATOCONJUNCTIVITIS, and the immune response elicited by CORNEAL TRANSPLANTATION.

A fibrillar collagen found widely distributed as a minor component in tissues that contain COLLAGEN TYPE I and COLLAGEN TYPE III. It is a heterotrimeric molecule composed of alpha1(V), alpha2(V) and alpha3(V) subunits. Several forms of collagen type V exist depending upon the composition of the subunits that form the trimer.

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