Anisometropia Prevalence in a Highly Astigmatic School-Aged Population

Purpose. To describe prevalence of anisometropia, defined in terms of both sphere and cylinder, examined cross-sectionally, in school-aged members of a Native American tribe with a high prevalence of astigmatism. Methods. Cycloplegic autorefraction measurements, confirmed by retinoscopy and, when possible, by subjective refraction were obtained from 1041 Tohono O’odham children, 4 to 13 years of age. Results. Astigmatism ≥1.00 diopter (D) was...