photopia
/fəʊˈtɒpɪə/ /fəʊˈtəʊpɪə/Physiology. Now rare
noun
Vision in conditions of bright light; light-adapted vision; photopic vision.
Origin
Early 20th century; earliest use found in John Herbert Parsons (1868–1957), ophthalmologist and physiologist. From photo- + -opia; apparently coined by J. H. Parsons.