For B12 , the results were : mild nuclear cataract : OR , 0.78 ; 95 % CI , 0.63-0 .96 ; moderate nuclear cataract : OR , 0.62 ; 95 % CI , 0.43-0 .88 ; and mild cortical cataract : OR , 0.77 ; 95 % CI , 0.63-0 .95 .