from studies involving 31 cataracts classified by the ccrg system and eight normal human lenses , it has been found that the adult human lens contains an enzyme system capable of oxidizing 1-2 mumol of glyceraldehyde , acetaldehyde , propionaldehyde , formaldehyde , and malonaldialdehyde per hour to their carboxylic acid form .
C0086543
cataracts
C0023317
lens