Haploscope

A haploscope ( haplóos , ἁπλόος , Greek : "alone, simple") is an optical examination device that is mainly used in strabology , a special area of ophthalmology , for diagnostic and therapeutic purposes. It can be used to separate each eye and present its own test image, of which there are numerous and very different specimens. The image separation takes place in different and device-dependent ways through color filters , diaphragms , prisms , mirrors , polarization filters or through a very rapid, alternating image sequence. The examination devices are used to create extensive motility analyzes and to determine squint angles in a wide variety of viewing directions, monocular excursions , binocular fields of view , binocular functions ( simultaneous viewing , fusion breadth and stereopsis ), fusion field of view and correspondence relationships. Furthermore, they can be used for orthoptic and pleoptic training treatments, for example using afterimage templates or a built-in rotatable polarization filter to generate the Haidinger tuft .

Haploscopes differ in shape, size, range of functions as well as technical and optical implementation of the image separation process. The most common devices include the synoptometer , the synoptophore (according to Cüppers ), the phase difference haploscope and the polarization haploscope .

See also

• Chiroscope

Web links

• Precision Mechanics and Optics Standards Committee (NAFuO): DIN NA 027 Ophthalmic Instruments - Synoptophores, DIN EN ISO 10944.

literature

• Herbert Kaufmann (Ed.): Strabismus. With the collaboration of Wilfried de Decker et al. Enke, Stuttgart 1986, ISBN 3-432-95391-7 .

This article is about a health issue. It is not used for self-diagnosis and does not replace a diagnosis by a doctor. Please note the information on health issues !