optical aberrations in the spectacle lens will affect the light path, diminishing
contrast sensitivity and visual performance. To address this problem, vision
scientists at Essilor developed an . tion and material. Montana State
top right: U.S. army paratroopers from the 82nd Airborne Division, DoD photo by . areas around the world are real, but the belief that naval and air power . (e.g. , ports, pipelines, or canals), dominant terrain (e.g., strategic choke points), and/.