title: Measurement of episcleral venous pressure in normal Chinese people.
abstract: OBJECTIVE
  To measure episcleral venous pressure (EVP) in normal Chinese people.
  
  
  METHODS
  EVP was measured in 110 eyes of 74 subjects distributed in seven age groups from 10 to 80 years using episcleral venomanometer (EV-310). The differences in EVP values were analyzed with age and either eye.
  
  
  RESULTS
  EVP values of the 110 eyes appeared as normal distribution. The value mean +/- SD was (9.11 +/- 1.22) mmHg, and the 95% normal value range was 6.73 mmHg -11.50 mmHg. No statistically significant difference of EVP was found in the seven age groups. And there was no statistically significant difference of EVP between the right and left eyes.
  
  
  CONCLUSIONS
  The value mean +/- SD of EVP in Chinese normal eyes in 9.11 mmHg +/- 1.22 mmHg. The normal value of EVP does not vary with age and either eye.
authors.affiliation: Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Zhong
authors.forename: D
authors.initials: D
authors.lastname: Peng
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D044466:Asian People; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012590:Sclera / Q000098:blood supply*; D014680:Veins / Q000502:physiology; D014690:Venous Pressure