P3H4O1T1O1P3I1A1
15 points
PHOTOPIA is validvalid
vision in bright light [n PHOTOPIAS]
vision in illumination similar to daylight, believed to involve chiefly the cones of the retina [n -S]
vision in bright light [n PHOTOPIAS]
vision in illumination similar to daylight, believed to involve chiefly the cones of the retina [n -S]