The role of temporal threshold criteria in psychophysical testing in glaucoma

Autor:	B. J. Lachenmayr
Rok vydání:	1994
Předmět:	Campimetry Psychophysical tests medicine.medical_specialty genetic structures business.industry Vision Tests Glaucoma General Medicine Audiology medicine.disease Flicker Fusion Ophthalmology Flicker perimetry Afferent Psychophysics medicine Humans High temporal resolution Motion perception business
Zdroj:	Current Opinion in Ophthalmology. 5:58-63
ISSN:	1040-8738
DOI:	10.1097/00055735-199404000-00009
Popis:	The magnicellular system seems to be affected early and specifically by glaucomatous damage. It shows high temporal resolution and good motion perception. Psychophysical tests investigating the temporal transfer characteristics of the afferent visual system thus are of special interest for the detection of early glaucomatous damage. Flicker perimetry is largely independent from disturbances of the ocular media and provides a means to identify eyes with pressure-produced functional loss. Defects in temporal modulation perimetry may precede the onset or progression of defects in conventional light-sense perimetry. Motion sensitivity seems to be affected early by glaucomatous damage. The problem of noisefield campimetry is the lack of quantification and reliability control of the patients' responses. Large-field or Ganzfeld stimulators can separate glaucomatous from normal eyes with high sensitivity and specificity; their value for the identification of eyes at risk to develop progression of functional loss still must be demonstrated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7720deae86440e1812d2b2b03e59b11e https://doi.org/10.1097/00055735-199404000-00009 Zobrazit plný text záznamu