Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement

PURPOSE: To document anterior chamber depth in a Mongolian population and quantify the variation in this parameter attributable to age, sex, and method of measurement.METHOD: Depth of the anterior chamber was measured by optical pachymetry in 1,242 subjects aged 10 to 87 years. Figures for '�...

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Main Authors: Foster, PJ, Alsbirk, PH, Baasanhu, J, Munkhbayar, D, Uranchimeg, D, Johnson, GJ
Format: Article in Journal/Newspaper
Language:unknown
Published: OPHTHALMIC PUBL CO 1997
Subjects:
Online Access:http://discovery.ucl.ac.uk/142072/
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spelling ftucl:oai:eprints.ucl.ac.uk.OAI2:142072 2023-05-15T16:07:25+02:00 Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement Foster, PJ Alsbirk, PH Baasanhu, J Munkhbayar, D Uranchimeg, D Johnson, GJ 1997-07 http://discovery.ucl.ac.uk/142072/ unknown OPHTHALMIC PUBL CO AM J OPHTHALMOL , 124 (1) 53 - 60. (1997) ANGLE-CLOSURE GLAUCOMA OPTICAL MEASUREMENT GREENLAND ESKIMOS PREVALENCE EPIDEMIOLOGY POPULATION BLINDNESS Article 1997 ftucl 2016-01-15T03:26:14Z PURPOSE: To document anterior chamber depth in a Mongolian population and quantify the variation in this parameter attributable to age, sex, and method of measurement.METHOD: Depth of the anterior chamber was measured by optical pachymetry in 1,242 subjects aged 10 to 87 years. Figures for ''true'' anterior chamber depth were calculated by subtracting central corneal thickness from the distance between the anterior corneal epithelium and anterior lens capsule. A mode ultrasound was also used to measure the distance from anterior corneal epithelium to anterior lens capsule in 94% (942) of subjects aged 40 years and older. These ultra-sound data were compared with measurements of the same distance obtained by optical pachymetry.RESULTS: Mean anterior chamber depth in women was more shallow than in men of all ages (ANOVA., P<.0001), although this difference varied according to age. Mean anterior chamber depth decreased with age and was most accurately represented by a cubic function of age, This change was maximal between the ages of 30 and 60 years and equaled 0.15 mm per decade in men and 0.21 mm per decade in women. Mean depth of the anterior chamber measured by ultrasound was significantly less than the equivalent optical measurement (difference of 0.14 mm in right eyes, P<.001).CONCLUSIONS: Mean anterior chamber depth in Mongolians decreases with age and is more shallow in women than in men. Ultrasound and optical methods of anterior chamber depth measurement yield significantly different results and are therefore not directly comparable. Article in Journal/Newspaper eskimo* Greenland University College London: UCL Discovery Greenland
institution Open Polar
collection University College London: UCL Discovery
op_collection_id ftucl
language unknown
topic ANGLE-CLOSURE GLAUCOMA
OPTICAL MEASUREMENT
GREENLAND ESKIMOS
PREVALENCE
EPIDEMIOLOGY
POPULATION
BLINDNESS
spellingShingle ANGLE-CLOSURE GLAUCOMA
OPTICAL MEASUREMENT
GREENLAND ESKIMOS
PREVALENCE
EPIDEMIOLOGY
POPULATION
BLINDNESS
Foster, PJ
Alsbirk, PH
Baasanhu, J
Munkhbayar, D
Uranchimeg, D
Johnson, GJ
Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement
topic_facet ANGLE-CLOSURE GLAUCOMA
OPTICAL MEASUREMENT
GREENLAND ESKIMOS
PREVALENCE
EPIDEMIOLOGY
POPULATION
BLINDNESS
description PURPOSE: To document anterior chamber depth in a Mongolian population and quantify the variation in this parameter attributable to age, sex, and method of measurement.METHOD: Depth of the anterior chamber was measured by optical pachymetry in 1,242 subjects aged 10 to 87 years. Figures for ''true'' anterior chamber depth were calculated by subtracting central corneal thickness from the distance between the anterior corneal epithelium and anterior lens capsule. A mode ultrasound was also used to measure the distance from anterior corneal epithelium to anterior lens capsule in 94% (942) of subjects aged 40 years and older. These ultra-sound data were compared with measurements of the same distance obtained by optical pachymetry.RESULTS: Mean anterior chamber depth in women was more shallow than in men of all ages (ANOVA., P<.0001), although this difference varied according to age. Mean anterior chamber depth decreased with age and was most accurately represented by a cubic function of age, This change was maximal between the ages of 30 and 60 years and equaled 0.15 mm per decade in men and 0.21 mm per decade in women. Mean depth of the anterior chamber measured by ultrasound was significantly less than the equivalent optical measurement (difference of 0.14 mm in right eyes, P<.001).CONCLUSIONS: Mean anterior chamber depth in Mongolians decreases with age and is more shallow in women than in men. Ultrasound and optical methods of anterior chamber depth measurement yield significantly different results and are therefore not directly comparable.
format Article in Journal/Newspaper
author Foster, PJ
Alsbirk, PH
Baasanhu, J
Munkhbayar, D
Uranchimeg, D
Johnson, GJ
author_facet Foster, PJ
Alsbirk, PH
Baasanhu, J
Munkhbayar, D
Uranchimeg, D
Johnson, GJ
author_sort Foster, PJ
title Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement
title_short Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement
title_full Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement
title_fullStr Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement
title_full_unstemmed Anterior chamber depth in Mongolians: Variation with age, sex, and method of measurement
title_sort anterior chamber depth in mongolians: variation with age, sex, and method of measurement
publisher OPHTHALMIC PUBL CO
publishDate 1997
url http://discovery.ucl.ac.uk/142072/
geographic Greenland
geographic_facet Greenland
genre eskimo*
Greenland
genre_facet eskimo*
Greenland
op_source AM J OPHTHALMOL , 124 (1) 53 - 60. (1997)
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