title: Family history and reading habits in adult-onset myopia.
abstract: OBJECTIVE
  A retrospective study was developed to evaluate risk factors in adult-onset myopia.
  
  
  METHODS
  Subjects included were 25 to 35 years old. There were 116 non-myopic subjects in the control group and 66 myopic subjects with first lens prescription at age 17 or later. Subjects received a questionnaire about academic achievement, daily hours of reading during years of study, and family history of myopia.
  
  
  RESULTS
  The level of academic achievement was similar for myopic and non-myopic groups in this sample. Myopia was associated with family history (chi(2) = 6.131, p </= 0.013) and with daily hours of reading during years of study (chi(2) = 3.904, p </= 0.048). According to multiple logistic regression analysis, the correlation of myopia with family history adjusted for daily hours of reading remained significant (p </= 0.005), whereas the correlation with daily hours of reading adjusted for family history was not significant (p </= 0.061).
  
  
  CONCLUSIONS
  After multivariate analysis, adult-onset myopia was significantly associated only with family history of myopia.
authors.affiliation: Depto. de Oftalmología, Centro Médico San Luis, Buenos Aires, Argentina. rafael@ar.inter.net
authors.forename: Rafael
authors.initials: R
authors.lastname: Iribarren
authors.forename: Guillermo
authors.initials: G
authors.lastname: Iribarren
authors.forename: Maria M
authors.initials: MM
authors.lastname: Castagnola
authors.forename: Alejandra
authors.initials: A
authors.lastname: Balsa
authors.forename: Mario R
authors.initials: MR
authors.lastname: Cerrella
authors.forename: Alejandro
authors.initials: A
authors.lastname: Armesto
authors.forename: Andrea
authors.initials: A
authors.lastname: Fornaciari
authors.forename: Tomás
authors.initials: T
authors.lastname: Pförtner
mesh_terms: D000328:Adult; D017668:Age of Onset; D016009:Chi-Square Distribution; D003263:Contact Lenses, Hydrophilic; D003430:Cross-Sectional Studies; D018450:Disease Progression; D005190:Family; D005260:Female; D006184:Habits; D006801:Humans; D008297:Male; D015999:Multivariate Analysis; D009216:Myopia / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology*; D015995:Prevalence; D011932:Reading; D012029:Refraction, Ocular; D012189:Retrospective Studies; D012307:Risk Factors; D011795:Surveys and Questionnaires