Estudo quantitativo da lágrima pelo teste de fenol vermelho na população brasileira

Translated title of the contribution: Quantitative tear study using the red phenol test in the Brazilian population

Richard Yudi Hida, Maria Cristina Nishiwaki-Dantas, Milton Massato Hida, Kazuo Tsubota

Research output: Contribution to journalArticle

7 Citations (Scopus)


Purpose: To detect normal values of red phenol thread test in the Brazilian population and compare it between different races, age and sex. Methods: 280 white individuals (560 eyes) and 280 non-white individuals (560 eyes) were analyzed regarding sex and age, and analyzed using the Phenol Red test. Individuals with ocular diseases, contact lens or ocular drug users were excluded from this study. Results: Of the 1,120 evaluated eyes, the mean ± standard deviation result was 19,77±7,90 mm. Conclusion: The mean result found in this study was an intermediate value compared to the previously studied populations (Japanese and American).

Original languageUndefined/Unknown
Pages (from-to)433-437
Number of pages5
JournalArquivos Brasileiros de Oftalmologia
Issue number4
Publication statusPublished - 2005 Jul



  • Comparative study
  • Cornea
  • Cross-cultural comparison
  • Diagnostic techniques
  • Dry eye syndromes
  • Ophthalmological
  • Osmolar concentration
  • Phenolsulfonphthalein/diagnostic use
  • Tears

ASJC Scopus subject areas

  • Ophthalmology

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