The Tromso Eye Study: study design, methodology and results on visual acuity and refractive errors

被引:24
|
作者
Bertelsen, Geir [1 ,2 ]
Erke, Maja G. [1 ,2 ]
von Hanno, Therese [3 ,4 ]
Mathiesen, Ellisiv B. [3 ,5 ]
Peto, Tunde [6 ,7 ]
Sjolie, Anne K. [3 ,8 ]
Njolstad, Inger [2 ]
机构
[1] Univ Hosp North Norway, Dept Ophthalmol & Neurosurg, Tromso, Norway
[2] Univ Tromso, Dept Community Med, Fac Hlth Sci, Res Grp Epidemiol Chron Dis, Tromso, Norway
[3] Univ Tromso, Fac Hlth Sci, Dept Clin Med, Brain & Circulat Res Grp, Tromso, Norway
[4] Nordland Hosp, Dept Ophthalmol, Bodo, Norway
[5] Univ Hosp North Norway, Dept Neurol & Neurophysiol, Tromso, Norway
[6] NHS Fdn Trust, Moorfields Eye Hosp, NIHR Biomed Res Ctr Ophthalmol, London, England
[7] UCL Inst Ophthalmol, Reading Ctr, London, England
[8] Odense Univ Hosp, Dept Ophthalmol, DK-5000 Odense, Denmark
关键词
age-related macular degeneration; diabetic retinopathy; epidemiology; refractive error; retinal vasculature; retinal vessel calibre; TromsO Eye Study; TromsO Study; visual acuity; RETINAL MICROVASCULAR ABNORMALITIES; AGE-RELATED MACULOPATHY; CORONARY-HEART-DISEASE; DIABETIC-RETINOPATHY; ATHEROSCLEROSIS RISK; OLDER POPULATION; VESSEL MEASUREMENT; MACULAR EDEMA; IMPAIRMENT; PREVALENCE;
D O I
10.1111/j.1755-3768.2012.02511.x
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
. Purpose: To describe the study design and methodology of the TromsO Eye Study (TES), and to describe visual acuity and refractive error in the study population. Methods: The TromsO Eye Study is a sub-study of the TromsO Study, a population-based multipurpose longitudinal study in the municipality of TromsO, Norway. The TromsO Eye Study was a part of the sixth survey of the TromsO Study, conducted from October 2007 through December 2008. The eye examination included information on self-reported eye diseases, assessment of visual acuity and refractive errors, retinal photography and optical coherence tomography. Retinal images were graded for diabetic retinopathy and age-related macular degeneration, and with computer-assisted measurements of arteriolar and venular diameters. In addition, TES researchers have access to the large comprehensive TromsO Study database including physical examination results, carotid artery ultrasound, electrocardiogram, bone densitometry, cognitive tests, questionnaires, DNA, blood and urine samples and more from the present and the five previous surveys. Results: Visual acuity was assessed in 6459 subjects and refraction in 6566 subjects aged 38-87years. Snellen visual acuity <20/60 was found in 1.2% (95% CI 0.95-1.5) of the participants and there was no gender difference. Visual impairment increased with age, and in the age group 80-87years, the overall visual acuity <20/60 was 7.3% (95% CI 3.3-11.2). Spherical equivalent showed an increasing trend with age and there was no clinically relevant difference between men and women. Retinal photography was performed in 6540 subjects. Conclusion: Prevalence of visual impairment was low but increased with age. There was a trend towards hyperopia with age and no clinically relevant difference in refraction between the sexes. TES aims to provide epidemiological research on several eye and eye-related diseases. Owing to a comprehensive data collection, it has the opportunity to explore issues related to environmental factors, cognition and their interaction with diseases in this community.
引用
收藏
页码:635 / 642
页数:8
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