当前位置： SCI文献检索 > JOURNAL OF CATARACT AND REFRACTIVE SURGERY期刊下所有文献 > Optical quality of foldable monofocal intraocular lenses before and after injection: comparative evaluation using a double-pass system.

Optical quality of foldable monofocal intraocular lenses before and after injection: comparative evaluation using a double-pass system.

Abstract：

PURPOSE:To use the double-pass technique to evaluate the in vitro optical quality of foldable monofocal intraocular lenses (IOLs) used to correct aphakia. SETTING:Universitat Politècnica de Catalunya, Terrassa, and Instituto de Microcirugía Ocular de Barcelona, Barcelona, Spain; Universidad Nacional de Tucumán, Tucumán, Argentina. METHODS:This study assessed the in vitro optical quality of 7 IOLs before and after injection in an artificial eye that was attached to a double-pass system (Optical Quality Analysis System [OQAS]). The procedure imitated the conventional in vivo technique used to assess the optical quality of eyes with an IOL. The following parameters were evaluated: point-spread function, modulation transfer function (MTF), MTF cutoff frequency, Strehl ratio, and OQAS values. RESULTS:The in vitro optical quality of most IOLs was as good after injection as before injection. In 1 IOL, the post-injection optical quality was statistically significantly different but the optical quality remained high. CONCLUSIONS:Results indicate that after an IOL is placed in the eye, its optical performance will be good, providing good visual quality. The eye cell model attached to the double-pass system was useful and effective for fully characterizing the optical quality of IOLs and evaluating variations resulting from the injection process.

journal_name

J Cataract Refract Surg

journal_title

Journal of cataract and refractive surgery

authors

Vilaseca M,Arjona M,Pujol J,Issolio L,Güell JL

doi

10.1016/j.jcrs.2009.03.022

subject

Has Abstract

pub_date

2009-08-01 00:00:00

pages

1415-23

issue

8

eissn

0886-3350

issn

1873-4502

pii

S0886-3350(09)00398-8

journal_volume

35

pub_type

杂志文章

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