Cataracts and Dementia
A study on cataract removal and dementia (https://www.nia.nih.gov › news › cataract-removal-linked).found a 30 percent lower risk of developing dementia in those who had their cataracts removed. It is thought that there is greater socialization after cataract surgery that helps keep the mind sharp. Could it be that having a clearer vision in life keeps a better out look on life.
Comorbidities included chronic obstructive pulmonary disease, hypertension, and hypercholesterolemia.