I don't think cataracts have anything to do with parasites. Cataracts are mainly due to AGEs (Advanced Glycation End-Products) which are hooked up to your eye proteins (known as crystallins). The logical way to get rid of the cataracts is to unhook the AGEs from the crystallins. As I have said before, one of the few agents that can do that is rosmarinic acid (RA). If RA can be made to penetrate a hard lens, then 100% lens transparency would be restored with NO SURGERY. But no commercial eyedrops with rosmarinic acid exist.