★★★★★
Cataracts are the result of the inability to properly digest certain types of protein. Any remedy that will absorb or break down surface proteins will alleviate cataract growth and/or dissolve them completely. Castor oil would work, but even iodized salt will work.
There are far more than 18 effective treatments for cataracts, but then again, health care insurance and physicians frown on people treating themselves. Not to mention the FDA is strictly against home remedies.