Actual and intended refraction after cataract surgery.

Abstract:

PURPOSE:To demonstrate an analytical method to compare the actual and intended refraction after cataract surgery that allows incorporation of refractive surgical effects. SETTING:Corneal and External Eye Disease Service, Royal Liverpool University Hospital, Liverpool, United Kingdom. METHODS:The actual postoperative refraction was compared to the intended postoperative refraction before and after removal of surgically induced changes in keratometry; that is, the keratometric surgical effect. Application of hypothesis testing is demonstrated using a standardized method of analyzing refractive data; that is, refractive data transformed into the refractive power matrix with calculation of the mean and variance-covariance of the data. RESULTS:The method of analysis demonstrated how surgically induced changes in refractive components can be incorporated into hypothesis testing when comparing intended and actual postoperative refractions. CONCLUSION:Application of the standardized method of analyzing refractive data allows a more accurate evaluation of methods or formulas used to calculate intraocular lens power in cataract surgery.

authors

Kaye SB

doi

10.1016/s0886-3350(03)00418-8

subject

Has Abstract

pub_date

2003-11-01 00:00:00

pages

2189-94

issue

11

eissn

0886-3350

issn

1873-4502

pii

S0886335003004188

journal_volume

29

pub_type

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