[Quantitative tear study using the red phenol test in the Brazilian population].
OBJECTIVE
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.


CONCLUSIONS
The mean result found in this study was an intermediate value compared to the previously studied populations (Japanese and American).
Hida
Richard Yudi
RY
Departamento de Oftalmologia, Hospital Central da Irmandade, Faculdade de Ciências Médicas, Santa Casa de Misericórdia de São Paulo, São Paulo, SP. ryhida@mandic.com.br
Nishiwaki-Dantas
Maria Cristina
MC
Hida
Milton Massato
MM
Tsubota
Kazuo
K
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D001938:Brazil / Q000208:ethnology; D002648:Child; D002675:Child, Preschool; D004396:Coloring Agents; D003315:Cornea / Q000737:chemistry; D015352:Dry Eye Syndromes / Q000175:diagnosis; D005006:Ethnicity; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009994:Osmolar Concentration; D010637:Phenolsulfonphthalein; D012016:Reference Values; D012680:Sensitivity and Specificity; D017678:Sex Distribution; D018709:Statistics, Nonparametric; D013666:Tears / Q000378:metabolism*
D004396:Coloring Agents; D010637:Phenolsulfonphthalein