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Arq Bras Oftalmol. 2011 Jan-Feb;74(1):67-74.

[Cross-linking and intrastromal corneal ring segment].

[Article in Portuguese]

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  • 1Departamento de Oftalmologia, Setor de Cirurgia Refrativa, Universidade Federal de São Paulo, São Paulo, SP, Brazil.


Corneal cross-linking is a procedure used for stabilizing the cornea in patients with progressive keratoconus by increasing corneal rigidity, and it is also used in corneal inflammatory melting process. The intrastromal corneal ring segments act by flattening the center of the cornea. Originally designed for the correction of mild myopia, the segments are now being used for reduction of keratoconus in order to improve the uncorrected visual acuity, the best spectacle corrected visual acuity, to allow good tolerance to the use of contact lenses and delay the need for corneal grafting procedures. The present text presents a review of corneal cross-linking and insertion of intrastromal corneal ring segments, emphasizing their indications, results and complications related until now.

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