The average cost in 2004 per glaucoma patient age 40 to 64 using medications and vitamins was $806.
Rein, David B., Ping Zhang, Kathleen E. Wirth, Paul P. Lee, Thomas J. Hoerger, Nancy McCall, Ronald Klein, James M. Tielsch, Sandeep Vijan, and Jinan Saaddine. The Economic Burden of Major Adult Visual Disorders in the United States. Archives of Ophthalmology. 2006; 124(12): 1754-60. http://archopht.ama-assn.org/cgi/content/abstract/124/12/1754