Hypocalcaemic cataract as a presenting symptom of renal insufficiency.

A young man of 17 years presented with bilateral reduced vision because of cataracts. Investigations showed a low level of serum calcium along with other evidence of renal failure. The cataracts were mainly in the posterior pole (cupulliform); faint peripheral cortical opacities were also present--in the form of about a dozen half-loops straddling the equator and extending about half way towards the axial centre of the lens.