๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Evaluation of the central retina and optic nerve function in media opacities

โœ Scribed by M. H. Foerster; X. X. Li

Book ID
104645020
Publisher
Springer-Verlag
Year
1986
Tongue
English
Weight
287 KB
Volume
63
Category
Article
ISSN
0012-4486

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โœฆ Synopsis

Conventional electIoretinogram (ERG) and pattern VECP (or visual evoked cortical potential) are of limited value in estimating visual function in eyes with media opacities. We used a method consisting of flicker ERG and flicker VECP to successfully overcome this limitation. Three of 25 eyes with cataract had a reduced flicker VECP. These 3 patients also had a history of glaucomatous optic nerve damage. Normal flicker VECP was found in some patients with reduced flicker ERG or reduced scotopic and photopic a-wave. Analysis of the results showed that the flicker VECP is independent of the ERG and flicker ERG. Utilizing this method we could rule out maculopathy and optic nerve damage in patients with media opacities as well as recognize optic nerve damage in patients with coexisting maculopathy.

๐Ÿ“œ SIMILAR VOLUMES

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โœ Peter Johnston, J. ;Gardner, Ernest ๐Ÿ“‚ Article ๐Ÿ“… 1959 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 643 KB

Some years ago Walls ('42) pointed out that mammals with pure-cone retinae apparently occur only in the family Sciuridae, and that in this family, grouncl squirrels arc tlie most strongly diuriial. In spite of the obvious advantages of using these animals for studies of vision, little experimental w