There was no statistically significant difference in stereopsis between the 2 treatment groups : Frisby ( contact lens , 6 [ 11 % ] ; IOL , 7 [ 13 % ] ; P = .99 ) , Randot ( contact lens , 3 [ 6 % ] ; IOL , 1 [ 2 % ] ; P = .62 ) , or Titmus ( contact lens , 8 [ 15 % ] ; IOL , 13 [ 23 % ] ; P = .34 ) .