Definition of micropsia in English:



  • [mass noun] A condition of the eyes in which objects appear smaller than normal.

    • ‘That oculomotor adjustment to a relatively near point induces micropsia for the zenith moon’
    • ‘In the second to third hour, visual illusions, wavelike recurrences of perceptual changes (micropsia, macropsia, etc.), and affective symptoms may occur.’
    • ‘Instead I lay incapacitated, overwhelmed by the sensation I am now able to give the name micropsia.’
    • ‘It must be strongly emphasized that oculomotor micropsia and oculomotor macropsia are physiological and not geometrical effects.’
    • ‘Because micropsia exists for close objects, macropsia, the opposite, occurs for far objects.’


Mid 19th century: from micro- small + Greek -opsia seeing.