%0 Journal Article
%T Femtosecond assisted intrastromal corneal ring (ISCR) implantation for the treatment of corneal ectasia
%A Coimbra
%A Cristina Cardoso
%A Gomes
%A Marcos Tonelli
%A Campos
%A Mauro
%A Figueiroa Junior
%A Edvaldo Soter de
%A Barbosa
%A Eduardo Parente
%A Santos
%A Myrna Serapi£¿o dos
%J Arquivos Brasileiros de Oftalmologia
%D 2012
%I Conselho Brasileiro de Oftalmologia
%R 10.1590/S0004-27492012000200011
%X purpose: to assess the outcomes of intrastromal corneal ring (iscr) implantation for the treatment of corneal ectasia. methods: thirty-five consecutive patients with secondary corneal ectasia treated with keraring intrastromal corneal ring segment implantation aided by intralaser femtosecond technique (k-icrs-fs) were evaluated. visual acuity (logmar), refraction and astigmatism vector analysis were measured preoperatively and 3 months postoperatively using vector analysis as described by some authors. results: visual acuity improved from 0.40 ¡À 0.20 to 0.25 ¡À 0.13 logmar (p=0.0002), with reduction of the spherical equivalent from -5.41 ¡À 4.78 d to -2.83 ¡À 3.29 d (p=0.0002). mean astigmatism reduction was 3.92 ¡À 2.52 d. k maximum decreased from 51.65 ¡À 5.83 d preoperatively to 48.58 ¡À 5.54 d (p=0.001) 3 months after the surgery and k minimum decreased from 45.92 ¡À 4.64 d to 43.96 ¡À 5.06 d (p=0.0041). there were no intraoperative or postoperative complications. conclusion: intrastromal corneal ring implantation with the use of a femtosecond laser was a safe procedure, with low risk of complications and significant improvement on visual acuity and topographic data in this seeting of patients with secondary corneal ectasia.
%K corneal topography
%K cornea [pathology]
%K astigmatism [physiopathology]
%K keratoconus [physiopathology]
%K keratoconus [surgery]
%K lasers
%K excimer [therapeutic use]
%K prosthesis implantantion
%K refraction
%K ocular
%K visual acuity.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0004-27492012000200011&lng=en&nrm=iso&tlng=en