Prevalence of Lens Opacities in the Barbados Eye Study

doi:10.1001/archopht.1997.01100150107018

You are seeing this message because your Web browser does not support basic Web standards. Find out more about why this message is appearing and what you can do to make your experience on this site better.

Vol. 115 No. 1, January 1997

Online Only
	•	Online First Table of Contents

EPIDEMIOLOGY AND BIOSTATISTICS

•	Online Features

This Article
•	References
•	Full text PDF
•	Correction
•	Reply to article
•	Send to a friend
•	Save in My Folder
•	Save to citation manager
•	Permissions

Citing Articles
•	Citation map
•	Citing articles on HighWire
•	Citing articles on Web of Science (82)
•	Contact me when this article is cited

Related Content
•	Similar articles in this journal

Social Bookmarking
	What's this?

Prevalence of Lens Opacities in the Barbados Eye Study

M. Cristina Leske, MD, MPH; Anthea M. S. Connell, FRCS, FCOphth; Suh-Yuh Wu, MA; Leslie Hyman, PhD; Andrew Schachat, MD; Barbados Eye Study Group

Arch Ophthalmol. 1997;115(1):105-111.

Abstract

Objective
To present population-based data on type and extent of age-relatedlens opacities in the predominantly black population of theBarbados Eye Study.

Design
Prevalence study.

Setting and Participants
The Barbados Eye Study included 4709 participants (84% of thoseeligible), who were identified from a random sample of Barbadian-borncitizens aged 40 to 84 years.

Data Collection
Lens gradings at the slit lamp, obtained with the use of theLens Opacities Classification System II.

Main Outcome Measure
Prevalence of posterior subcapsular, nuclear, and cortical opacities(defined as a grade $≥$ 2 in either eye), as well as prevalenceof any lens changes (including history of previous cataractsurgery and/or cataract too advanced to grade).

Results
Overall, 41% of the Barbados Eye Study population had any lenschanges, including 3% with aphakia or an intraocular lens. Amongthe population of African descent, cortical opacities (34%)were most prevalent, followed by nuclear (19%) and posteriorsubcapsular (4%) opacities. Prevalence of all opacity typesincreased with age (P<.001). Cortical and nuclear opacitieswere more frequent in women than men. When prevalence of a singlekind of opacity was considered, 21% of participants had corticalonly, 6% had nuclear only, and 0.4% had posterior subcapsularonly; 13% had mixed opacities. Visual acuity loss to worse than20/40 in the more affected eye was present in 48%, 26%, and18% of nuclear only, posterior subcapsular only, and corticalonly types, respectively, and in 53% of mixed opacities.

Conclusions
The Barbados Eye Study provides the first prevalence data ondifferent types of lens opacities in a large, predominantlyblack population. Whereas nuclear opacities are most commonin white populations, cortical opacities were the most frequenttype in the Barbados Eye Study, a finding of possible etiologicrelevance. Other results highlight a higher frequency of opacitiesin women than men and a high prevalence of visual acuity lossin affected eyes.

Author Affiliations

From the University Medical Center at Stony Brook, Stony Brook, NY (Drs Leske and Hyman and Ms Wu); Ministry of Health, Bridgetown, Barbados, West Indies (Dr Connell); and Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Md (Dr Schachat). Members of the Barbados Eye Study Group are listed in a box on page 107.

Add to CiteULike CiteULike Add to Connotea Connotea Add to Delicious Delicious Add to Digg Digg Facebook Add to Reddit Reddit Add to Technorati Technorati Twitter What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

Prevalence of Lens Opacities in North India: The INDEYE Feasibility Study
Murthy et al.
IOVS 2007;48:88-95.
ABSTRACT | FULL TEXT

Development of Cataract and Associated Risk Factors: The Visual Impairment Project
Mukesh et al.
Arch Ophthalmol 2006;124:79-85.
ABSTRACT | FULL TEXT

Refractive Error, Ocular Biometry, and Lens Opalescence in an Adult Population: The Los Angeles Latino Eye Study
Shufelt et al.
IOVS 2005;46:4450-4460.
ABSTRACT | FULL TEXT

Model of Risk of Cortical Cataract in the US Population with Exposure to Increased Ultraviolet Radiation due to Stratospheric Ozone Depletion
West et al.
Am J Epidemiol 2005;162:1080-1088.
ABSTRACT | FULL TEXT

Nine-Year Refractive Changes in the Barbados Eye Studies
Wu et al.
IOVS 2005;46:4032-4039.
ABSTRACT | FULL TEXT

Cataract and Barriers to Cataract Surgery in a US Hispanic Population: Proyecto VER
Broman et al.
Arch Ophthalmol 2005;123:1231-1236.
ABSTRACT | FULL TEXT

Smoking and Its Association with Cataract: Results of the Andhra Pradesh Eye Disease Study from India
Krishnaiah et al.
IOVS 2005;46:58-65.
ABSTRACT | FULL TEXT

Risk factors for age related cataract in a rural population of southern India: the Aravind Comprehensive Eye Study
Nirmalan et al.
Br J Ophthalmol 2004;88:989-994.
ABSTRACT | FULL TEXT

Prevalence of Cataract and Pseudophakia/Aphakia Among Adults in the United States
The Eye Diseases Prevalence Research Group
Arch Ophthalmol 2004;122:487-494.
ABSTRACT | FULL TEXT

Risk Factors for Incident Cortical and Posterior Subcapsular Lens Opacities in the Barbados Eye Studies
Hennis et al.
Arch Ophthalmol 2004;122:525-530.
ABSTRACT | FULL TEXT

The prevalence of pseudoexfoliation syndrome in Chinese people
Young et al.
Br J Ophthalmol 2004;88:193-195.
ABSTRACT | FULL TEXT

Refractive Errors in an Elderly Chinese Population in Taiwan: The Shihpai Eye Study
Cheng et al.
IOVS 2003;44:4630-4638.
ABSTRACT | FULL TEXT

Lens Opacities in a Rural Population of Southern India: The Aravind Comprehensive Eye Study
Nirmalan et al.
IOVS 2003;44:4639-4643.
ABSTRACT | FULL TEXT

Validity of a Personal and Family History of Cataract and Cataract Surgery in Genetic Studies
Bowie et al.
IOVS 2003;44:2905-2908.
ABSTRACT | FULL TEXT

Five year incidence of cataract surgery: the Blue Mountains Eye Study
Panchapakesan et al.
Br J Ophthalmol 2003;87:168-172.
ABSTRACT | FULL TEXT

Knowledge about cataract, glaucoma, and age related macular degeneration in the Hong Kong Chinese population
Lau et al.
Br J Ophthalmol 2002;86:1080-1084.
ABSTRACT | FULL TEXT

Frequency and Risk Factors for Pterygium in the Barbados Eye Study
Luthra et al.
Arch Ophthalmol 2001;119:1827-1832.
ABSTRACT | FULL TEXT

Prevalence of the Different Types of Age-Related Cataract in an African Population
Congdon et al.
IOVS 2001;42:2478-2482.
ABSTRACT | FULL TEXT

Prevention strategies for age related cataract: present limitations and future possibilities
Congdon
Br J Ophthalmol 2001;85:516-520.
FULL TEXT

The assessment of lens opacities in clinical practice: results of a national survey
Frost and Sparrow
Br J Ophthalmol 2001;85:319-321.
ABSTRACT | FULL TEXT

Refractive Errors in a Black Adult Population: The Barbados Eye Study
Wu et al.
IOVS 1999;40:2179-2184.
ABSTRACT | FULL TEXT

Sunlight Exposure and Risk of Lens Opacities in a Population-Based Study: The Salisbury Eye Evaluation Project
West et al.
JAMA 1998;280:714-718.
ABSTRACT | FULL TEXT

Racial Categorization in the Barbados Eye Study
McLeod and Leske
Arch Ophthalmol 1998;116:259-260.
FULL TEXT

| | |