+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Electrophysiological estimation of the function of different retinal zones in normal eyes and in retinal degenerations

Documenta Ophthalmologica 61(1): 65-70
Electrophysiological estimation of the function of different retinal zones in normal eyes and in retinal degenerations
By means of electroretinographical responses from different areas of the retina (zonular ERGs) both healthy people and patients with central and peripheral retinal degenerations were examined. Responses were registered from three retinal areas (zones): central (red, green, and blue stimuli, in diameter, during adaptation of 20 lux); paramacular (a dim, blue, ringlike stimulus, inner and outer diameter, presented at the beginning of dark adaptation) and peripheral (very dim, blue ring stimulus of a inner and outer diameter, after 3 min of dark adaptation). The data obtained by this method of stimulation give information about the function of stimulated retinal areas and provide new critera for the function of the spectrally different photoreceptors responsible for intact color vision. Examples are presented that reveal the value of this method for the detection of congenital color vision defects and for the classification of different types of retinal degeneration. This method is shown to be highly effective and has many advantages over the common routine Ganzfeld ERG technique, especially in cases of unusual retinal degenerations.

Accession: 005349607

PMID: 3877623

DOI: 10.1007/bf00143217

Download PDF Full Text: Electrophysiological estimation of the function of different retinal zones in normal eyes and in retinal degenerations

Related references

Retinal breaks and lattice degenerations in eyes with juvenile retinal detachment. Folia Ophthalmologica Japonica 37(3): 373-380, 1986

Complications of prophylactic treatment of retinal holes and retinal degenerations by cryopexy in 1000 eyes. Ophthalmologe 93(2): 139-143, 1996

Treatment of retinal tears and lattice degenerations in fellow eyes in high risk patients suffering retinal detachment: a prospective study. British Journal of Ophthalmology 83(9): 1046-1049, 1999

Inherited and environmentally induced retinal degenerations. Proceedings of the International Symposium on Retinal Degenerations. San Francisco, California, September 2 and 3, 1988. Progress in Clinical and Biological Research 314: 1-727, 1989

Retinal structure-function relationships determined in vivo in human hereditary retinal degenerations. Investigative Ophthalmology & Visual Science 38(4 PART 1-2): S314, 1997

Retinal degenerations in post-mortem eyes. Transactions of the Australian College of Ophthalmologists 3: 38-41, 1971

Indications for photocoagulation of retinal degenerations 3rd Colloquium of the Jules Gonin Club Surgery of retinal vascular diseases and prophylactic treatment of retinal detachment, 1963, Amersfoort, Neth. 1966

Number of lattice degenerations in eyes with retinal detachment. Nippon Ganka Gakkai Zasshi 85(3): 254-257, 1981

Relationship between macular inner retinal layer thickness and corresponding retinal sensitivity in normal eyes. Investigative Ophthalmology & Visual Science 55(11): 7199-7205, 2015

Repeatability of Cone Spacing Measures in Eyes With Inherited Retinal Degenerations. Investigative Ophthalmology & Visual Science 56(10): 6179-6189, 2015