Bernadette Capili
Cross-Sectional Studies
The American journal of nursing
determine distribution keratometry determinants iranian school children present crosssectional study conducted 2015 shahroud north iran entire rural population elementary school children invited study urban areas cluster sampling conducted pentacam hr oculus inc lynnwood wa used measure flat meridian steep meridian mean keratometry linear regression used determine associated variables mean keratometry 5620 participated study 5559 children analyzed applying exclusion criteria mean keratometry 4356 196 diopters 95 confidence interval 43484364 total sample 4318 223 95 confidence interval 43094326 boys 4401 146 95 confidence interval 43954407 girls p 0001 highest lowest mean keratometry 4328 166 95 confidence interval 43004355 4289 270 95 confidence interval 42684311 6yearold 10yearold children respectively p 0031 results multiple linear regression showed mean keratometry girls 082 higher boys p 0001 groups older 9 years significantly decreased mean keratometry myopic children 062 higher emmetropic children p 0001 study provided valuable findings status keratometry iranian children line studies corneal power higher girls boys cornea becomes flatter age children