Infants in the placebo group were at increased risk of lower language development assessed as words understood ( OR 3.22 , CL 1.49-6 .94 , P = 0.002 ) and produced ( OR 2.61 , CL 1.22-5 .58 , P = 0.01 ) at 14 mo , and words understood ( OR 2.77 , CL 1.23-6 .28 , P = 0.03 ) and sentences produced ( OR 2.60 , CL 1.15-5 .89 , P = 0.02 ) at 18 mo using the McArthur Communicative Developmental Inventory ; receptive ( OR 2.23 , CL 1.08-4 .60 , P = 0.02 ) and expressive language ( OR 1.89 , CL 0.94-3 .83 , P = 0.05 ) at 18 mo using the Bayley Scales of Infant Development III ; and visual acuity ( OR 2.69 , CL 1.10-6 .54 , P = 0.03 ) at 2 mo. .