Smoking can cause certain forms of age-related macular degeneration. Studies suggest that quitting will decrease the risk. Smoking is also a risk factor for the development of nuclear cataracts.
U.S. Department of Health and Human Services. The Health Consequences of Smoking – 50 years of Progress: A Report of the Surgeon General. Atlanta, GA. Centers for Disease Control and Prevention, National Center for Chronic Disease Prevention and Health Promotion, Office on Smoking and Health, 2014.