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Clinical outcomes after implantation of a new intrastromal corneal ring with 140-degree of arc in patients with corneal ectasia 被引量:3
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作者 Jordana Sandes larissa r.s.stival +5 位作者 Marcos Pereira de Avila Paulo Ferrara Guilherme Ferrara Leopoldo Magacho Luana P.N.Araujo Leonardo Torquetti 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2018年第5期802-806,共5页
AIM:To evaluate the clinical and tomographic outcomes after implantation of a new intrastromal corneal ring segment(ICRS) with 140-degrees of arc in eyes with corneal ectasia.METHODS:We evaluated patients with cor... AIM:To evaluate the clinical and tomographic outcomes after implantation of a new intrastromal corneal ring segment(ICRS) with 140-degrees of arc in eyes with corneal ectasia.METHODS:We evaluated patients with corneal ectasia implanted with Ferrara 140° ICRS from April 2010 to February 2015.Outcome measures included preoperative and postoperative corrected distance visual acuity(CDVA),keratometry simulated(K) reading,tomographic astigmatism and asphericity.All patients were evaluated using the Pentacam Scheimpflug system.RESULTS:The study evaluated 58 eyes.The mean followup was 16.81±10.8 mo.The CDVA(logM AR) improved from 0.5±0.20(20/60) to 0.3±0.21(20/40)(P〈0.01).The average K reduced from 49.87±7.01 to 47.34±4.90 D(P〈0.01).The asphericity changed from-0.60±0.86 to-0.23±0.67 D(P〈0.01).The mean preoperative tomographic astigmatism decreased from-8.0±3.45 to-4.53±2.52 D(P〈0.01).CONCLUSION:The new ICRS model with 140-degrees of arc effectively improve the visual acuity and reduce the high astigmatism usually found in patients with corneal ectasia. 展开更多
关键词 KERATOCONUS intrastromal corneal ring segment corneal ectasia
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