Refractive Status of Indigenous People in the Northwestern Amazon Region of Brazil

  title={Refractive Status of Indigenous People in the Northwestern Amazon Region of Brazil},
  author={F. Thorn and A. Cruz and A. J. Machado and R. C. Carvalho},
  journal={Optometry and Vision Science},
  • F. Thorn, A. Cruz, +1 author R. C. Carvalho
  • Published 2005
  • Geography, Medicine
  • Optometry and Vision Science
  • Purpose. The purpose of this study was to investigate the refractive status of the illiterate indigenous people of the upper Rio Negro region of the Amazon rain forest in northwestern Brazil. Methods. From an overall sample of 486 people, 259 indigenous people and 78 Brazilians between 12 and 59 years of age with no compromising optical opacities were refracted with cycloplegic retinoscopy. Subjects were categorized as indigenous if they had at least three generations of indigenous ancestry… CONTINUE READING
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