He serves as Director of Residency Programs and Chief of the Ocular Health Service. In 2014, RSO launched a Glaucoma Center of Excellence under the direction of Dr Trevino, funded, in part, by a grant from Capital One, to provide glaucoma care, research and education. The grant enables the clinic to care for indigent patients who otherwise would be unable to afford treatment of their glaucoma. Dr Trevino practiced in the Veterans Administration for 13 years. He is a graduate of the Illinois College of Optometry and completed a residency in Primary Care Optometry at the Pennsylvania College of Optometry. He has held faculty and adjunct appointments at the University of Waterloo, State University of New York, and the New England College of Optometry.