Research article summary:

Clinical assessment of the Zeiss IOLMaster.

Abstract Extract:
PURPOSE: To compare axial lengths and intraocular lens (IOL) power calculations obtained with the Zeiss IOLMaster by 2 observers with different training grades and to assess the agreement between optical and acoustic biometry. SETTING: Department of ... (Full abstract text below)

Published 2003Mar in Journal: J Cataract Refract Surg (Language : eng)

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This information was retrieved, real-time, on your behalf from the public area of the Pubmed website:

1. J Cataract Refract Surg. 2003 Mar;29(3):518-22

Clinical assessment of the Zeiss IOLMaster.

Kielhorn I, Rajan MS, Tesha PM, Subryan VR, Bell JA

Department of Ophthalmology, Pembury Hospital, The Laser Eye Clinic, Kent, United Kingdom. ikielhorn@doctors.org.uk

PURPOSE: To compare axial lengths and intraocular lens (IOL) power calculations obtained with the Zeiss IOLMaster by 2 observers with different training grades and to assess the agreement between optical and acoustic biometry. SETTING: Department of Ophthalmology, Pembury Hospital, The Laser Eye Clinic, Kent, United Kingdom. METHODS: In this prospective study, optical biometry was performed twice in 79 patients: first by a qualified ophthalmic nurse and second by 1 of several health care assistants without formal nursing training. In the same group of patients, the qualified nurse also obtained ultrasonic measurements to compare the 2 clinical methods. RESULTS: There was a high correlation coefficient for axial length and IOL power measurements (0.99 each) between the experienced examiner and the inexperienced examiners. The coefficient of repeatability (2 SD) was 0.58 diopter (D) for IOL power (mean 0.04 D) and 0.07 mm for the axial length (mean 0.00 mm). The correlation coefficient of IOLMaster measurements with A-scan measurements done by the same experienced ophthalmic nurse was 0.97 for IOL power and 0.98 for axial length. The limits of agreement (mean +/- 2 SD) were between +0.50 and -2.40 D for IOL power calculations and between +0.7 mm and -0.2 mm for axial length measurements. CONCLUSIONS: Optical biometry showed excellent repeatability using different examiners regardless of their medical training. The agreement with ultrasonic measurements and the precision of the method need further evaluation.

PMID : 12663017 [PubMed - Indexed for MEDLINE]

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Full Author Information

First Name	LastName	Initials
Ingrid	Kielhorn	I
Madhavan S	Rajan	MS
Peter M	Tesha	PM
Visva Raja	Subryan	VR
John A	Bell	JA

Affiliation: Department of Ophthalmology, Pembury Hospital, The Laser Eye Clinic, Kent, United Kingdom. ikielhorn@doctors.org.uk

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