|Title||REFRACTIVE ERROR AND OCULAR COMPONENTS AS A FUNCTION OF ETHNICITY|
|Author, Co-Author||Karla Zadnik, Donald Mutti, Robert Kleinstein, Ruth Manny, Julie Shin, Lisa Jones, The Study Group|
|Abstract|| PURPOSE. The Collaborative Longitudinal Evaluation of Refractive Error and Ethnicity (CLEERE) Study was initiated in 1997 to investigate ocular and refractive error in various ethnic groups.
METHODS. Children in grades 1 through 8 were recruited and examined during the 1997-98 academic year at four clinical sites. The four ethnic groups (per parent report) represented in this sample were Caucasians (n=1,028), African-Americans (n=532), Hispanics (n=460), and Asians (n=550). Refractive error, axial length, and corneal curvature were measured using cycloplegic autorefraction, A-scan ultrasonography, and autokeratometry.
RESULTS. Refractive error distribution differed significantly by ethnic group with the highest prevalence of myopia (defined as at least -0.75 D of myopia in each principal meridian) among the Asians (17.1% myopic, mean vertical meridian 0.37 +/- 1.77 D), the lowest prevalence of myopia among the Caucasians (4.2% myopic, mean vertical meridian 1.21 +/- 1.19 D) and the Hispanics and African-Americans intermediate (14.2% and 6.4% myopic and mean vertical meridian 0.57 +/- 1.80 D and 0.48 +/- 1.21 D respectively; chi-square = 90.55, pCHANGES IN CORNEAL ABSORBANCE AFTER PHOTOREFRACTIVE KERATECTOMY IN RABBITS
|Affiliation of Co-Authors|