The study participants underwent ophthalmologic examinations, including visual acuity assessment, refractometry, keratometry, intraocular pressure measurement by Goldman applanation tonometry, slit-lamp biomicroscopy, and optical biometry which provided data on axial length (AL), anterior chamber depth (ACD), lens thickness (LT), and central corneal thickness (CCT). We conducted optical biometry with the Lenstar. Five readings were taken for each eye, and after omitting the highest and lowest values, the mean of the remaining three readings was used for analysis. All measurements were done for both eyes of all subjects. All enrollees received an ophthalmic examination that included refraction. Trained ophthalmic technicians (R.I.C. and D.T.B.) performed all scans.