[Prevalence of Kayser-Fleischer ring in patients with Wilson's disease].

The aim of the study was to assess prevalence of Kayser-Fleischer ring in children with Wilson's disease. 36 patients aged 7-17 years were enrolled into the study. All of them underwent ophthalmic examination by slit-lamp biomicroscopy. Kayser-Fleischer ring was found in 2 children (5.6%)--16 years old boy and girl with liver insufficiency. In addition, the girl had neurological symptoms. After 2 years of treatment K-F ring was not detected in the girl's eyes. Our data indicate that Kayser-Fleischer ring is rare in children and its absence does not exclude diagnosis of Wilson's disease.