Contrast sensitivity in children treated for congenital cataract

1. We measured the contrast sensitivity of 18 children, 4-13 years of age, who were born with a dense and central cataract in one (n = 10) or both (n = 8) eyes. The cataracts had been surgically removed and the aphakic eyes fitted with contact lenses (or, in two cases corrected with glasses). The period of deprivation ranged from 3 to 29 months. For comparison, we tested 23 comparably-aged children: 20 with a normal visual history, and three …