[Low prevalence of dyschromatopsia using the fourth edition of HRR (Hardy, Rand and Rittler) pseudoisochromatic plate test among the Indian population of Lalima village, Terena]

[Low prevalence of dyschromatopsia using the fourth edition of HRR (Hardy, Rand and Rittler) pseudoisochromatic plate test among the Indian population of Lalima village, Terena] Research Abstract Details 

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[Low prevalence of dyschromatopsia using the fourth edition of HRR (Hardy, Rand and Rittler) pseudoisochromatic plate test among the Indian population of Lalima village, Terena] Abstract Text:

Piccinin,Juliana Ferrari Cunha,Herbert Paulo de Almeida,Cleiton Cassio Bach, de Oliveira Dossa,Reinaldo Ferreira da Silva,Valdir Filgueiras Pessoa,

PURPOSE: to evaluate the frequency of dyschromatopsias among the 10 to 45-year-old male Indian population of Lalima village, Terena ethnicity, in Miranda-MS, using the fourth edition of the pseudoisochromatic HRR test (Hardy, Rand and Rittler). METHODS: Lalima village in Miranda-MS was visited in January and February 2005. The visits only occurred after the approval of the project by the Committee of Ethics and Research of UFMS, by the National Committee of Ethics and Research, by the Indian National Foundation, and by the chief of Lalima village. The test was applied in 226 Indians who had been previously submitted to ophthalmologic examination for the detection of abnormalities that could doubt the applicability of the test. The test was performed under natural illumination, in sunny days, however with no direct sunlight. The test was applied and analyzed by the same experimenter in all the Indians. RESULTS: Two hundred and twenty-six men were examined (60.1%) of the total male population of 376 individuals between 10 and 45 years old who live in Lalima village. No cases of dyschromatopsia were found in this population examined with the HRR test. CONCLUSIONS: Once it is known that incidence of dyschromatopsias among the white male Caucasian population is about 6-8%, the results of the present study indicate a low prevalence of dyschromatopsias in this Indian population of Terena ethnicity, since no cases were detected in the examined sample. Other studies using different methods must be made to reinforce the present results. It would also be interesting to genetically examine this population and verify the genes that code for photopigments.

[Low prevalence of dyschromatopsia using the fourth edition of HRR (Hardy, Rand and Rittler) pseudoisochromatic plate test among the Indian population of Lalima village, Terena] Publishing Authors By Initials

MR Piccinin,JF Cunha,HP de Almeida,CC Bach,AC de Oliveira Dossa,RF da Silva,VF Pessoa,

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[Low prevalence of dyschromatopsia using the fourth edition of HRR (Hardy, Rand and Rittler) pseudoisochromatic plate test among the Indian population of Lalima village, Terena] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Arquivos brasileiros de oftalmologia

VOLUME: 70

Page Numbers: 259-69

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ISSN: 0004-2749

DAY: 25

MONTH: 06

YEAR: 2007

[Low prevalence of dyschromatopsia using the fourth edition of HRR (Hardy, Rand and Rittler) pseudoisochromatic plate test among the Indian population of Lalima village, Terena] Information

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LANGUAGE: por

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AFFILIATION: Universidade de Brasília, Brasil. mrpiccinin@yahoo.com.br

Country: Brazil

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MEDLINETA: Arq Bras Oftalmol

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