"With the rule" astigmatism is not the rule in the elderly. Reykjavik Eye Study: a population based study of refraction and visual acuity in citizens of Reykjavik 50 years and older. Iceland-Japan Co-Working Study Groups.

2.50
Hdl Handle:
http://hdl.handle.net/2336/82973
Title:
"With the rule" astigmatism is not the rule in the elderly. Reykjavik Eye Study: a population based study of refraction and visual acuity in citizens of Reykjavik 50 years and older. Iceland-Japan Co-Working Study Groups.
Authors:
Gudmundsdottir, E; Jonasson, F; Jonsson, V; Stefansson, E; Sasaki, H; Sasaki, K
Citation:
Acta Ophthalmol Scand. 2000, 78(6):642-6
Issue Date:
1-Dec-2000
Abstract:
PURPOSE: To study refractive state and visual acuity in citizens of Reykjavik 50 years and older. METHODS: 1700 persons were randomly selected from the national population census. 1379 could be located and qualified whereof 1045 participated. Evaluation of refraction was performed using Nidek ARK 900 autorefracto-keratometer. Visual acuity was tested on a Snellen chart. RESULTS: The prevalence of hypermetropia increases with age by 0.3 D in five years. The prevalence of "against the rule" astigmatism increased on average 5.3% and oblique 3.9% in five years. Analysis of corneal astigmatism measured by keratometer shows an "against the rule" change with age. CONCLUSIONS: Hypermetropia increases by age. The prevalence of astigmatism increases and the axis turns to "against the rule". The changes in total astigmatism and corneal astigmatism is almost parallel which might indicate that the "against the rule" change is related to changes in the cornea.
Description:
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field
Additional Links:
http://dx.doi.org/10.1034/j.1600-0420.2000.078006642.x

Full metadata record

DC FieldValue Language
dc.contributor.authorGudmundsdottir, Een
dc.contributor.authorJonasson, Fen
dc.contributor.authorJonsson, Ven
dc.contributor.authorStefansson, Een
dc.contributor.authorSasaki, Hen
dc.contributor.authorSasaki, Ken
dc.date.accessioned2009-09-29T13:45:54Z-
dc.date.available2009-09-29T13:45:54Z-
dc.date.issued2000-12-01-
dc.date.submitted2009-09-29-
dc.identifier.citationActa Ophthalmol Scand. 2000, 78(6):642-6en
dc.identifier.issn1395-3907-
dc.identifier.pmid11167223-
dc.identifier.doi10.1034/j.1600-0420.2000.078006642.x-
dc.identifier.urihttp://hdl.handle.net/2336/82973-
dc.descriptionTo access publisher full text version of this article. Please click on the hyperlink in Additional Links fielden
dc.description.abstractPURPOSE: To study refractive state and visual acuity in citizens of Reykjavik 50 years and older. METHODS: 1700 persons were randomly selected from the national population census. 1379 could be located and qualified whereof 1045 participated. Evaluation of refraction was performed using Nidek ARK 900 autorefracto-keratometer. Visual acuity was tested on a Snellen chart. RESULTS: The prevalence of hypermetropia increases with age by 0.3 D in five years. The prevalence of "against the rule" astigmatism increased on average 5.3% and oblique 3.9% in five years. Analysis of corneal astigmatism measured by keratometer shows an "against the rule" change with age. CONCLUSIONS: Hypermetropia increases by age. The prevalence of astigmatism increases and the axis turns to "against the rule". The changes in total astigmatism and corneal astigmatism is almost parallel which might indicate that the "against the rule" change is related to changes in the cornea.en
dc.language.isoenen
dc.publisherBlackwellen
dc.relation.urlhttp://dx.doi.org/10.1034/j.1600-0420.2000.078006642.xen
dc.subject.meshAgeden
dc.subject.meshAged, 80 and overen
dc.subject.meshAgingen
dc.subject.meshAstigmatismen
dc.subject.meshFemaleen
dc.subject.meshHumansen
dc.subject.meshHyperopiaen
dc.subject.meshIcelanden
dc.subject.meshMaleen
dc.subject.meshMiddle Ageden
dc.subject.meshMyopiaen
dc.subject.meshPrevalenceen
dc.subject.meshRefraction, Ocularen
dc.subject.meshVisual Acuityen
dc.title"With the rule" astigmatism is not the rule in the elderly. Reykjavik Eye Study: a population based study of refraction and visual acuity in citizens of Reykjavik 50 years and older. Iceland-Japan Co-Working Study Groups.en
dc.typeArticleen
dc.contributor.departmentDepartment of Ophthalmology, University of Iceland.en
dc.identifier.journalActa ophthalmologica Scandinavicaen

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