Ultrasonic biometry of fullterm and prematurity children eyes accommodation

Abstract

The aim of our work has been to determinate changes in optical-anatomical elements of full-term and pre-maturity children myopic eyes during accommodation using precise ultrasonic biometry.
Research has been done on healthy full-term children eyes with emmetropic refraction (n=20);pre-term emmetropic children (n=8);full-term 1^st degree myopic children eyes with refraction from -1.0D to -3.0D (second group, n=16), and pre-maturity children myopic eyes with refraction -1.0D to -3.0D (third group, n=12). The age of children ranged from 6 to 15 years old. Gestagetion ages in the pre-term group ranged from 28 to 34 weeks.
Ultrasonic biometry evaluates optical-anatomical parameters changes in pre-maturity children myopic eyes. The axial length was longer than in healthy and full-term myopic children eyes, average 24.09±0.69 mm), and the lens thickness was bigger (average 3.35±0.14 mm). In the healthy children group respectively the axial length was 23.49±0.48 mm, and lens thickness was 3.00±0.07 mm and in the full-term myopic children group the axial length was 23.79±0.59 mm, the lens thickness was 3.24±0.14 mm.
In the group of pre-maturity children myopic eyes changes in optical-anatomical elements parameters were more active than in the group of full-term children myopic eyes and it can lead to a higher myopia development.