EurekaMag.com logo
+ Translate

Electrophysiological determination of contrast sensitivity curves in glaucoma


, : Electrophysiological determination of contrast sensitivity curves in glaucoma. Annali di Ottalmologia e Clinica Oculistica 112(11): 949-954

The Authors studied by means of V.E.P. the contrast sensitivity of a group of glaucomatous patients. They evaluated the amplitude of the visual evoked response for decreasing contrast levels and then calculated the contrast threshold through zero extrapolation. The results show a decrease of contrast sensitivity in glaucomatous patients, especially at the lowest spatial frequency.

(PDF 0-2 workdays service)

Accession: 005349524

Submit PDF Full Text: Here


Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:
Close
Close

Related references

Korth, M.J.; Jünemann, A.M.; Horn, F.K.; Bergua, A.; Cursiefen, C.; Velten, I.; Budde, W.M.; Wisse, M.; Martus, P., 2000: Synopsis of various electrophysiological tests in early glaucoma diagnosis--temporal and spatiotemporal contrast sensitivity, light- and color-contrast pattern-reversal electroretinogram, blue-yellow VEP. Of the three glaucoma-defining criteria intraocular pressure, optic-nerve damage, and visual field damage, the latter is a late symptom. Therefore, in order to improve an early sensory diagnosis, new tests are necessary. It is the aim of the prese...

Onal, S.; Yenice, O.; Cakir, S.; Temel, A., 2007: FACT contrast sensitivity as a diagnostic tool in glaucoma: FACT contrast sensitivity in glaucoma. To investigate spatial-contrast sensitivity (CS) assessment as a tool for diagnosis of early glaucoma in patients with good visual acuity. In this prospective cross-sectional study we evaluated one eye of 50 patients with primary open angle or nor...

Breton, M.E.; Wilson, T.W.; Wilson, R.; Spaeth, G.L.; Krupin, T., 1991: Temporal contrast sensitivity loss in primary open-angle glaucoma and glaucoma suspects. The need for more sensitive tests for the early detection of compromised visual function in glaucoma is established by anatomic and psychophysical evidence of damage occurring to optic nerve fibers in eyes with normal visual fields. The results ar...

Sano, N.; Sasaki, K.; Satoh, E.; Adachi Usami, E., 1996: Contrast sensitivity as determined by PVECP latency in normal-tension glaucoma and primary open-angle glaucoma. Investigative Ophthalmology & Visual Science 37(3): S511

Volkov, N.G.; Lyapidevskii, V.K., 1965: On the determination of the spectrum sensitivity curves of light receptors on the basis of summation curves. A mathematical analysis is given based on the assumption of 2 receiving elements rather than the usual 3.

Volkov, N.G.; Liapidevskiĭ, V.K., 1965: On the determination of curves of spectrum sensitivity to light-receptors from addition curves. Doklady Akademii Nauk SSSR 163(1): 231-234

Bongard, M.M.; Smirnov, M.S., 1955: Determination of curves of spectrum sensitivity of the receptors of the eye according to curves of structure. Doklady Akademii Nauk SSSR 102(6): 1111-1114

Prociatti, V.; Di-Bartolo, E.; Nardi, M.-Marco; Fiorentini, A., 1997: Responses to chromatic and luminance contrast in glaucoma: A psychophysiological and electrophysiological study. Increasing anatomical evidence indicates that large retinal ganglion cells (M-cells) are preferentially damaged in primary open angle glaucoma (OAG), while the smaller ganglion cells (P-cells) are relatively spared. In 13 patients with defined OAG...

Porciatti, V.; D.B.rtolo, E.; Nardi, N.; Fiorentini, A., 1997: Responses to chromatic and luminance contrast in glaucoma: a psychophysical and electrophysiological study. Increasing anatomical evidence indicates that large retinal ganglion cells (M-cells) are preferentially damaged in primary open angle glaucoma (OAG), while the smaller ganglion cells (P-cells) are relatively spared. In 13 patients with defined OAG...

Bartos, D., 1989: Contrast sensitivity in glaucoma. Author reports on results of the contrast sensitivity examinations using the Cambridge low-contrast lattice test supplied by Clement Clarke International LTD, in patients with open-angle glaucoma and ocular hypertension. In glaucoma patients there...