Análise das alterações na curvatura corneana com implante intra-estromal: estudo experimental em coelhos

Godoy, Cinara Sakuma de Oliveira; Wahab, Sâmia Ali; Moreira, Hamílton; Moreira, Luciane Bugmann; Godoy, Glaucio de

doi:10.1590/s0004-27492007000200021

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Estudos experimentais realizados em coelhos demonstraram que o implante de um segmento de anel, produziu a indução de astigmatismo assimétrico, devido ao encurvamento maior no setor do implante. Com o implante do segundo segmento de anel, observou-se aumento significativo da curvatura no setor do corpo deste anel, gerando astigmatismo simétrico e aplanamento corneano onde foram posicionadas as extremidades dos segmentos de anel intraestromal (15) . O objetivo do presente estudo foi analisar, as alterações corneanas com o implante de anel intraestromais assimétricos, invertendo o nomograma proposto pelo fabricante e avaliar os efeitos sobre a curvatura corneana.…”

Section: Introductionunclassified

Anel corneano intraestromal assimétrico no tratamento do ceratocone

Siqueira¹,

Polo²,

Gomes³

et al. 2010

Arq. Bras. Oftalmol.

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Section: Introductionunclassified

Anel corneano intraestromal assimétrico no tratamento do ceratocone

Siqueira¹,

Polo²,

Gomes³

et al. 2010

Arq. Bras. Oftalmol.

Self Cite

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Clinical Results of Intacs® Ring Implantation in Keratoconus or Keratectasia

Kim

Wee

et al. 2015

J Korean Ophthalmol Soc

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Purpose:To report the clinical results after the implantation of intrastromal corneal ring segments (Intacs ® ) for the correction of keratoconus or keratectasia. Methods: This retrospective study was comprised of 16 eyes treated by insertion of intrastromal corneal ring and 30 eyes treated by penetrating keratoplasty (PKP) who were diagnosed with keratoconus or keratectasia. Visual acuity, refractive outcome, keratometric values were evaluated before and at 3 months, 6 months, and 12 months postoperatively. In addition, the implanted ring segment depth was measured by anterior segment optical coherence tomography and the results were compared based on the depth of the ring. Results: Twelve months after treatment, best corrected visual acuity (BCVA) was log MAR 0.32 at the ring group and log MAR 0.20 at the PKP group. BCVA change was larger at the PKP group than the ring group. Postoperative keratometric value was smaller at the ring group than at the PKP group. 3 mm irregular astigmatism was larger at the ring group than at the PKP group. The shallowly implanted ring group had a larger effect than the deeply implanted ring group. Conclusions: Intrastromal corneal ring segment implantation appears to be effective in improving the visual acuity and refractive outcome, although it cannot substitute for PKP. J Korean Ophthalmol Soc 2015;56(4):499-508

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