OBJECTIVE: To examine the long-term changes of the axial length in adults with high myopia. DESIGN: Open-label, consecutive, retrospective case series. METHODS: The medical records of 101 patients (184 eyes) with high myopia (myopia >/=-6 diopters or axial length >/=26.5 mm) were studied. The axial length of the eye was measured by A-scan ultrasonography. The significance of the changes in the axial length during follow-up was determined. The effects of the age, axial length, and the presence of a posterior staphyloma at the initial examination on the axial length elongation were determined. RESULTS: The mean follow-up period was 8.2 years. The median axial length increased significantly from 28.6 mm at the initial examination to 29.4 mm at the final examination in the 184 eyes. The axial length remained stable (
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