Luciana Mendonça Alves, Luiz Felipe Dos Santos, Izabel Cristina Campolina Miranda, Isa Mourão Carvalho, Gabriela de Lima Ribeiro, Laura de Souza Cardoso Freire, Vanessa de Oliveira Martins-Reis, Letícia Correa Celeste
Reading speed in Elementary School and Junior High
CoDAS
determine prevalence anisometropia associated demographic biometric risk factors children crosssectional study conducted elementary school children shahroud east iran 2015 rural students recruited multistage cluster sampling used select students urban areas children underwent optometric examinations including measurement uncorrected corrected visual acuity autorefraction subjective refraction cycloplegia biometric components measured using allegro biograph myopia hyperopia defined spherical equivalent 05 200 diopter respectively students history ocular trauma lack cycloplegic refraction least one eye excluded study 6624 selected children 5620 participated study applying exclusion criteria data 5357 students boys 528 n 2834 analyzed mean age subjects 92 17 years range 612 years prevalence anisometropia 1 11 95 ci 08 14 children 10 95 ci 0713 boys 13 95 ci 0817 girls 11 95 ci 0814 urban children 14 95 ci 0523 rural children prevalence anisometropia 88 95 ci 53122 myopic 57 95 ci 2885 hyperopic children axial length asymmetry 409 95ci 1021641 myopia 179 95 ci 94339 hyperopia 101 95 ci 51197 associated anisometropia multiple logistic regression model anisometropia associated severe amblyopia odds amblyopia 823 3821773 strabismus 176 55564 significantly higher anisometropic children prevalence amblyopia 217 children myopic anisometropia 3d 667 children hyperopic anisometropia 3d 100 cases antimetropia 3d prevalence anisometropia low iranian school children however high percentage anisometropic students amblyopia strabismus axial length important biometric component associated anisometropia