Many people are aware that Alzheimer’s disease (early onset or late onset) is caused by an amino acid plaque named amyloid beta. However, there are very few who are aware the plaque may blind the old. Recent studies indicate the plaque may cause two blinding ailments. One is macular degeneration, and the other is glaucoma. Macular degeneration, characterized by progressive loss of central vision leading to irreversible blindness, affects about 50 million individuals globally. Studies have shown that some kinds of glaucoma, not all kinds, may be related to the pathogenic plaque. Supplements are available for removing or neutralizing the plaque. Yong Han Lee, ReVitamins of Charleswood, Facebook.com/revitamins