An ophthalmic device for binocular vision testing. The patient views a two image pairs stacked (Top = right dim image/left bright image; Bottom = right bright image//left dim image) through polarizing glasses of a polarizing system and informs the examining doctor when the combination perceived changes. This visual impression provides the information whereby a diagnosis of unconscious suppression of one eye can be determined.
An ophthalmic device for binocular vision testing. The patient views a four-dot light combination (1 white, 1 red and 2 green) through coloured glasses and informs the examining doctor when the combination perceived changes. This visual impression provides the information whereby a diagnosis of unconscious suppression of one eye can be determined.