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Quantification of Visual Fields for Statistical Analysis

Quantification of Visual Fields for Statistical Analysis Abstract • The importance of visual fields in the study of ocular vascular disorders prompted the development of a method to convert visual fields plotted on a Goldmann perimeter into a digital form so that the data could be analyzed and stored by a computer. An instrument called a scotometer was designed to measure the visual fields and the various scotomata, and a data coding form was developed to facilitate the entry of the data into the computer. After extensive testing, this method is now being used in several clinical trials. Statistics have been computed that support the reliability of the coding process. References 1. Ebel RL: Estimation of the reliability of ratings . Psychometrika 16:407-424, 1951.Crossref 2. Esterman B: Grid for scoring visual fields: II. Perimeter . Arch Ophthalmol 79:400-406, 1968.Crossref 3. Crick RP: Prevention of blindness from glaucoma using the King's College Hospital computerized problem oriented medical record . Br J Ophthalmol 59:236-248, 1975.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Ophthalmology American Medical Association

Quantification of Visual Fields for Statistical Analysis

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Publisher
American Medical Association
Copyright
Copyright © 1979 American Medical Association. All Rights Reserved.
ISSN
0003-9950
eISSN
1538-3687
DOI
10.1001/archopht.1979.01020020493018
Publisher site
See Article on Publisher Site

Abstract

Abstract • The importance of visual fields in the study of ocular vascular disorders prompted the development of a method to convert visual fields plotted on a Goldmann perimeter into a digital form so that the data could be analyzed and stored by a computer. An instrument called a scotometer was designed to measure the visual fields and the various scotomata, and a data coding form was developed to facilitate the entry of the data into the computer. After extensive testing, this method is now being used in several clinical trials. Statistics have been computed that support the reliability of the coding process. References 1. Ebel RL: Estimation of the reliability of ratings . Psychometrika 16:407-424, 1951.Crossref 2. Esterman B: Grid for scoring visual fields: II. Perimeter . Arch Ophthalmol 79:400-406, 1968.Crossref 3. Crick RP: Prevention of blindness from glaucoma using the King's College Hospital computerized problem oriented medical record . Br J Ophthalmol 59:236-248, 1975.Crossref

Journal

Archives of OphthalmologyAmerican Medical Association

Published: Nov 1, 1979

References