His grandmother developed 'cataracts'.
(..) And, please, don't be alarmed. I'm a colored man. Don't make any difference to me. Doctor? Patient presents capsulocretaceous cataracts in both eyes. I advise surgery. Anesthetic? In the absence of cocaine, I'd recommend Holocaine. Looks like we are meeting halfway. (..)2014 TvShow: The Knick Title: The Golden Lotus Season: 1 Episode 9