Blindness and Visual Impairment in an American Urban Population: The Baltimore Eye Survey

James M. Tielsch, Alfred Sommer, Kathe Witt, Joanne Katz, Richard M. Royall

Research output: Contribution to journalArticle

Abstract

Data on the prevalence of blindness and visual impairment in multiracial urban populations of the United States are not readily available. The Baltimore Eye Survey was designed to address this lack of information and provide estimates of prevalence in age-race subgroups that had not been well studied in the past. A population-based sample of 5300 blacks and whites from east Baltimore, Md, received an ophthalmologic screening examination that included detailed visual acuity measurements. Blacks had, on average, a twofold excess prevalence of blindness and visual impairment than whites, irrespective of definition. Rates rose dramatically with age for all definitions of vision loss, but there was no difference in prevalence by sex. More than 50% of subjects improved their presenting vision after refractive correction, with 7.5% improving three or more lines. Rates in Baltimore are as high or higher than those reported from previous studies. National projections indicate that greater than 3 million persons are visually impaired, 890 000 of whom are bilaterally blind by US definitions.

Original languageEnglish (US)
Pages (from-to)286-290
Number of pages5
JournalArchives of ophthalmology
Volume108
Issue number2
DOIs
StatePublished - Feb 1990

ASJC Scopus subject areas

  • Ophthalmology

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