[Astigmatism among students ranging from 6 to 18 years of age].
OBJECTIVE
To determine the prevalence of astigmatism 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, and the coefficients of rang Spearman's correlation were calculated.


RESULTS
It was found that 4% of the students, aged from 6 to 18 suffers from astigmatism. No influence of the students' age on the prevalence of astigmatism was observed. It was found that astigmatism occurs more frequently among boys rather than girls.
Czepita
Damian
D
Katedry i Kliniki Okulistyki z Zakładem Patofizjologii Narzadu Wzroku Pomorskiej Akademii Medycznej w Szczecinie.
Gosławski
Wojciech
W
Mojsa
Artur
A
D001251:Astigmatism / Q000175:diagnosis / Q000453:epidemiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D011044:Poland / Q000453:epidemiology; D015995:Prevalence; D042262:Retinoscopy; D014792:Visual Acuity