We studied different methods of biometry (spatial ultrasonography, ultrasound biomicroscopy, optical principles) of anterior segment structures: lens, anterior chamber and its angle. 20 patients (40 eyes) with immature cataract were examined. Ultrasonography showed to be the most informative method. Some subjectivity of this technique due to echogram analysis has slightly influenced the estimation of linear and volumetric biometric parameters. Spatial ultrasonography may be recommended as a unique biometry technique for anterior segment structures.
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