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Comparison of the unwanted optical images produced by 6 mm and 7 mm intraocular lenses.

Abstract：

:Unwanted optical images are noticed by a surprisingly large number of patients following cataract extraction with implantation of posterior chamber intraocular lenses (IOLs). These images are caused by the positioning holes, lens edge, or laser ridge. We studied 550 eyes in which one of seven different IOLs was inserted. The IOLs varied in optic diameter, the presence or absence of positioning holes or a laser ridge, the use of partial depth holes or placement of positioning holes in tabs outside the optical zone. We determined that unwanted optical images could practically be eliminated by using a 7 mm optic without positioning holes. This study also demonstrated that partial depth holes offer no advantage over full thickness holes for reducing unwanted optical images and that positioning holes, even on a 7 mm optic, produce a significant number of complaints.

journal_name

J Cataract Refract Surg

journal_title

Journal of cataract and refractive surgery

authors

Friedberg HL,Kline OR Jr,Friedberg AH

doi

10.1016/s0886-3350(89)80113-0

subject

Has Abstract

pub_date

1989-09-01 00:00:00

pages

541-4

issue

5

eissn

0886-3350

issn

1873-4502

pii

S0886-3350(89)80113-0

journal_volume

15

pub_type

临床试验,杂志文章,随机对照试验

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