title: [Occurrence of hyperopia among students ranging from 6 to 18 years of age].
abstract: OBJECTIVE
  To determine the prevalence of hyperopia among students ranging from 6 to 18 years of age.
  
  
  METHODS
  5023 students from elementary schools, junior high schools and high schools, aged 6-18 years were examined. Measurements of visual acuity as well as retinoscopy after cycloplegia have been carried out. The data was analyzed using chi-square test, u-test and Student's t-test.
  
  
  RESULTS
  It was found that 21% of the students, aged from 6 to 18 suffers from hyperopia. It has been observed that from the sixth to the eighteenth years of life along with the age decreases the prevalence of hyperopia. A major decrease in the frequency of hyperopia occurrence among students aged between 6 and 9 years old as well as among those aged 16 and older, has been found. Significant differences between prevalence of hyperopia among boys and girls was not observed.
authors.affiliation: Z Katedry i Kliniki Okulistyki z Zakiadem Patofizjologii Narzadu Wzroku Pomorskiej Akademii Medycznej w Szczecinie.
authors.forename: Damian
authors.initials: D
authors.lastname: Czepita
authors.forename: Wojciech
authors.initials: W
authors.lastname: Gosławski
authors.forename: Artur
authors.initials: A
authors.lastname: Mojsa
mesh_terms: D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D006956:Hyperopia / Q000453:epidemiology*; D008297:Male; D011044:Poland / Q000453:epidemiology; D015995:Prevalence