LONGITUDINAL STUDY OF CHANGES IN INNER SCLERAL CURVATURE PATTERNS AND DEVELOPMENT OF POSTERIOR STAPHYLOMAS IN HIGHLY MYOPIC EYES OF CHILDREN AND ADOLESCENTS.

Purpose: To determine the longitudinal changes in patterns of inner scleral curvature and development of posterior staphylomas in the eyes of highly myopic youths.
Methods: A retrospective, longitudinal study. Ultra-widefield optic coherence tomographic (UWF-OCT) images from 47 eyes of 24 highly myopic patients with a follow-up period of 2 to 4 years were analyzed. Patients were divided into two groups, the children group younger than 10 years and the adolescents group aged 11 to 19 years.
Results: During the follow-up period, the scleral curvature patterns changed in either the horizontal or vertical optical coherence tomographic sections in 27 of the 46 eyes (58.7%) of both groups. The changes were significantly more frequent in children than adolescents. The change in the vertical section from symmetrical to asymmetrical in almost of children was correlated with an increase in the axial length and myopia. Four eyes had a staphyloma at the baseline. The staphyloma developed in six eyes of the remaining 43 eyes (14%). All staphyloma edges were found at or around the optic disc and were oriented in the horizontal direction.
Conclusion: Our results showed that UWF-OCT images can be used to determine the process of new staphyloma formation and concurrent changes in scleral curvature patterns.