Refractive errors in a black adult population: the Barbados Eye Study
Invest Ophthalmol Vis Sci
; 40(10): 2179-84, Sept. 1999.
Article
in En
| MedCarib
| ID: med-1357
Responsible library:
JM3.1
Localization: JM3.1;
ABSTRACT
PURPOSE:
To describe the prevalence of refractive errors in a black adult population.METHODS:
The Barbados Eye Study, a population-based study, included 4709 Barbados-born citizens, or 84 percent of a random sample, 40 to 84 years of age. Myopia and Hyperopia were defined as a spherical equivalent <-0.5 diopters and >+0.5 diopters, respectively, based on automated refraction. Analyses included 4036 black participants without history of cataract surgery. Associations with myopia and hyperopia were evaluated in logistic regression analyses.RESULTS:
The prevalence of myopia was 21.9 percent and was higher in men (25.0 percent) than in women (19.5 percent). The prevalence of hyperopia was 46.9 percent and was higher in women (51.8 percent) than in men (40.5 percent). The prevalence of myopia decreased from 17 percent in persons 40 to 49 years of age to 11 percent in those 50 to 59 years of age, but increased after 60 years of age. The prevalence of hyperopia increased from 29 percent at 40 to 49 years of age to 65 percent at 50 to 59 years of age, and tended to decline thereafter. A higher prevalence of myopia was positively associated (P < 0.05) with lifetime occupations requiring nearwork, nuclear opacities, posterior subcapsular opacities, glaucoma, and ocular hypertension. Factors associated with hyperopia were the same as for myopia, except for occupation, and in the opposite direction.CONCLUSION:
High prevalences of myopia and hyperopia were found in this large black adult population. The prevalence of myopia (hyperopia) increased (decreased) after 60 years of age, which is inconsistent with data from other studies. The high prevalence of age-related cataract, glaucoma, and other eye conditions in the Barbados Eye Study population may contribute to the findings.(AU)
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Collection:
01-internacional
Database:
MedCarib
Main subject:
Hyperopia
/
Myopia
Type of study:
Clinical_trials
/
Etiology_studies
/
Prevalence_studies
/
Risk_factors_studies
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Country/Region as subject:
Barbados
/
Caribe ingles
Language:
En
Journal:
Invest Ophthalmol Vis Sci
Year:
1999
Document type:
Article