[Acoustic studies of the sclera in progressive myopia in children and adolescents].

Acoustic density of the sclera (ADS) was examined using ultrasonic scanning device Ophthascan-B in 121 eyes of 91 patients aged 9 to 17 with progressive myopia of 3.5 to 14.0 diopters. ADS of the posterior pole and eyeball equator were measured separately. ADS in health was 47.6ë0.24 dB for the posterior pole and 46.0ë0.24 dB for the equator, in myopia 41.7ë0.26 and 38.8ë0.22 d, respectively. ADS in the eyes with myopia developing at school age was reliably higher than in cases with congenital and early acquired myopia. The lowest ADS values for both the posterior pole and equator were detected in patients with high early acquired myopia.