+ 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

Okinami S.; Ogino N.; Hirata A.; Akiba J.; Nishimura T.; Tomoda T.; Yamagishi K.; Kanai K.; Okada H.; E.A., 1986: Retinal breaks and lattice degenerations in eyes with juvenile retinal detachment. In a study of retinal breaks and lattice degenerations in 860 eyes (759 cases) from 8 months to 19 years of age with retinal detachment were divided into 3 age groups: 61 eyes in group I (0 .apprx. 9 yrs), 244 eyes in group II (10 .apprx. 14) and...

Reuter, U.; Gerding, H.; Kroll, P., 1996: Complications of prophylactic treatment of retinal holes and retinal degenerations by cryopexy in 1000 eyes. Introduction: Prophylactic treatment of full-thickness retinal breaks is widely accepted. The side effects and benefits of prophylactic treatment, however, have to be considered critically. The complication rates of prophylactic procedures must be...

Mastropasqua, L.; Carpineto, P.; Ciancaglini, M.; Falconio, G.; Gallenga, P.E., 1999: Treatment of retinal tears and lattice degenerations in fellow eyes in high risk patients suffering retinal detachment: a prospective study. Background/aims-Fellow eye prophylaxis for retinal detachment (RD) is still a controversial issue since opinions are not unanimous regarding the kind of lesions to be treated or the method of treatment. This prospective clinical study aimed to fol...

Anonymous, 1989: 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

Huang, Y.; Cideciyan, A.V.; Jacobson, S.G., 1997: Retinal structure-function relationships determined in vivo in human hereditary retinal degenerations. Investigative Ophthalmology & Visual Science 38(4 PART 1-2): S314

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

Anonymous, 1966: 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

Ogino, N., 1981: Number of lattice degenerations in eyes with retinal detachment. Number of lattice degeneration/eye was analyzed in 864 eyes with retinal detachment caused by retinal breaks associated with lattice lesions (413 eyes of lattice-hole type, 250 eyes of lattice-tear type and 201 eyes of compound type) and 478 eyes...

Araie, M.; Saito, H.; Tomidokoro, A.; Murata, H.; Iwase, A., 2015: Relationship between macular inner retinal layer thickness and corresponding retinal sensitivity in normal eyes. The correlation between standard automated perimetry (SAP) sensitivity and macular inner retinal layer thickness in eyes with glaucoma is well known. We examined whether the corresponding correlation is also significant in normal eyes. One eye of...

Zayit-Soudry, S.; Sippl-Swezey, N.; Porco, T.C.; Lynch, S.K.; Syed, R.; Ratnam, K.; Menghini, M.; Roorda, A.J.; Duncan, J.L., 2015: Repeatability of Cone Spacing Measures in Eyes With Inherited Retinal Degenerations. To determine short-term variability of adaptive optics scanning laser ophthalmoscopy (AOSLO)-derived cone spacing measures in eyes with inherited retinal degenerations (IRD) and in normal eyes. Twenty IRD patients and 10 visually normal subjects u...