Glenn is a Magna Cum Laude graduate of the University of Texas, Austin and a fellow of the American Academy of Ophthalmology since 1986.  He began international work in 1986 and has volunteered for numerous international missions. He has developed innovative techniques to address the problem of cataract blindness in developing nations and a high volume surgical training unit offering sponsored cataract surgical fellowships in manual small incision surgery and performing up to 3,000 cataract operations per year.

Glenn was the medical director of Mercy Ships for 6 years prior to joining HelpMeSee as the Chief Medical Officer to help with the manual small incision simulator project.