Abstract
Purpose :
Recently, optical biometry measurement devise can measure not only the axial length but also the corneal thickness, anterior chamber depth, lens thickness, pupil diameter, corneal diameter, and corneal curvature at the same time. The purpose of this study was to investigate the success rate of optical biometry measurement in elementally school students.
Methods :
A prospective cross-sectional observational study included 115 right eyes in healthy primary school students (age 8 or 9 years). Biomateric measurement of eye was performed for three years (third to fifth grade). Optical biometry measurements was carried out using OA-2000 (TOMEY, Japan). The success rate of optical biometry measurements such as axial length, corneal thickness, anterior chamber depth, lens thickness, pupil diameter, corneal diameter, and corneal curvature were calculated.
Results :
The axial length, corneal thickness, corneal curvature could be measured in all cases. Success rate of measurement of the anterior chamber depth was 92.2 % in third grade, 100 % in fourth and fifth grade, the lens thickness was 88.7% in third grade, 99.1 % in fourth grade, 100 % in fifth grade, pupil diameter was 100 % in third grade, 96.0 % in fourth grade, 100 % in fifth grade, corneal diameter was 84.3% in third grade, 66 % in fourth grade, 100 % in fifth grade.
Conclusions :
Fourier domain optical biometry device was able to measure all variables in all cases of fifth grade primary school students. Even in the third and fourth grade, the axial length, corneal thickness, corneal curvature radius were able to be measured in all cases, but the anterior chamber depth, lens thickness, pupil diameter, corneal diameter could not in some cases. This fact should be remembered in interpreting the biometric data of the eye in children.
This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.