Beyond the awesome interchange lens system, the spherical goggles are loaded with standout features including Expansion View Technology to bolster peripheral vision, triple - layer face foam with micro-fleece, and an anti-fog coating to blast out moisture and prevent cloudy lenses. (digitaltrends.com)
-- In humans PFVS can lead to bleeding in the eye — because the vessels leak, cloudy lens — so - called cataract, and detached retina. (scilifelab.se)
Seeing students through these cloudy lenses ensures that few students will ever master algebra. (idra.org)