Intrastromal corneal ring segments: How successful is the surgical treatment of keratoconus? | Zendy

JorgeL. Alio | Zendy; Alfredo Vega-Estrada | Zendy; Santiago Esperanza | Zendy; R BARRAQUER | Zendy; Miguel A. Teus | Zendy; Joaquim Murta | Zendy

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Intrastromal corneal ring segments: How successful is the surgical treatment of keratoconus?

Author(s) -

JorgeL. Alio,

Alfredo Vega-Estrada,

Santiago Esperanza,

R BARRAQUER,

Miguel A. Teus,

Joaquim Murta

Publication year - 2014

Publication title -

middle east african journal of ophthalmology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.357

H-Index - 25

eISSN - 0975-1599

pISSN - 0974-9233

DOI - 10.4103/0974-9233.124076

Subject(s) - keratoconus , medicine , visual acuity , corneal topography , ophthalmology , surgery , cornea

This review evaluates the outcomes of intrastromal corneal ring segment (ICRS) implantation for the treatment of keratoconus considering a new grading system based on the preoperative visual impairment of the patient. Additionally, a five-year follow-up analysis of patients with stable and progressive keratoconus is performed in order to assess the long term stability of the surgical procedure. Corrected distance visual acuity decreased statistically significantly in patients with mild keratoconus (P < 0.01) but statistically significantly increased in all other grades (P < 0.05). The improvement in visual acuity and the decrease of keratometric and aberrometric values were stable throughout a long period of time in patients with stable keratoconus. In patients with progressive form keratoconus, a significant improvement was found immediately after the procedure, however clinically relevant regression greater than 3 D was observed at the end of the follow up period.

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