Ophthalmic Findings in Classical Galactosemia-A Screened Population

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Abstract
Classical galactosemia due to a deficiency of galactoses -phosphate-uridyl transferase, is an autosomal recessive disorder of galactose metabolism with an incidence in Ireland of one in 30,000 births. It can result in cataract formation through the accumulation of galactitol within the lens. Seventeen children with transferase deficient galactosemia were studied. Early diagnosis followed by a galactose-free diet and tight biochemical control prevented cataract formation in 13 cases after a mean follow-up of 6.3 years. Cataracts did not regress in all patients commenced on diet by 6 weeks but early treatment prevented progression. The ophthalmologist may play an important role in the monitoring of patients with this disease as the recognition of new lens opacities by slit-lamp biomicroscopy may be the most sensitive initial index of inadequate biochemical control.

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