title: [Ocular biometry, refractive error and correlation with height, age, gender and years of formal education].
abstract: OBJECTIVE
  To assess ocular biometric parameters and refractive error in Brazilian adults and their relationship with height, age, gender and years of formal education.
  
  
  METHODS
  Cross-sectional study that assessed 173 subjects by keratometry, echobiometry, refraction and measurement of body height. The statistical analysis was performed using Pearson's coefficient and a regression model was constructed.
  
  
  RESULTS
  The correlations found were: each 10 cm - increase in height was related to a 0.32 mm longer axial length, 0.07 mm deeper anterior chamber, 0.26 mm deeper vitreous chamber and 0.50 D flatter keratometry. Each 10-year increase in age, related to a 0.15 mm smaller axial length, 0.25 mm thicker lens, 0.21 mm shallower vitreous chamber and 0.23 D more positive spherical equivalent. Each 10-year increase in education related to a 0.74 D more negative spherical equivalent. Gender did not influence the analyzed biometric parameters. Equations referring to biometric parameters and spherical equivalent were formulated.
  
  
  CONCLUSIONS
  Positive correlations were found between: axial length and height; anterior chamber and vitreous cavity depth with height; lens thickness with age; keratometry with height; and spherical equivalent with age. Negative correlations were found between: anterior chamber and vitreous cavity depth with age; spherical equivalent and years of formal education.
authors.affiliation: Departamento de Oftalmologia, Universidade Federal de São Paulo, São Paulo, SP, Brasil. grazi10@hotmail.com
authors.forename: Graziela Campanelli
authors.initials: GC
authors.lastname: Pereira
authors.forename: Norma
authors.initials: N
authors.lastname: Allemann
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001699:Biometry; D001827:Body Height / Q000502:physiology*; D003430:Cross-Sectional Studies; D004522:Educational Status; D005123:Eye / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D012030:Refractive Errors / Q000000981:diagnostic imaging; D012737:Sex Factors; D014463:Ultrasonography