Abstract
Pattern electroretinograms (PERGs) in response to 8.3 Hz alternating gratings (16.6 rev/sec) of different spatial frequencies were recorded in normal subjects as well as in patients affected by early glaucoma and ocular hypertension. In normal subjects the PERG response is spatially tuned, with a maximum at about 1.5 cycles/deg and attenuation at higher and lower spatial frequencies. In all cases of early glaucoma and in the great majority of cases of ocular hypertension the PERG was reduced, as compared with that of normal subjects, mainly in the medium range of spatial frequencies (at which the PERG has its maximal amplitude).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Arden, GB, Jacobson, JJ (1978) A simple grating test for contrast sensitivity. Preliminary results indicate value in screening for glaucoma. Invest Ophthalmol Vis Sci 17: 23–32
Aulhorn, E (1978) Visual fields defects in chronic glaucoma. In: Glaucoma, (eds) Heilmann, K, Richardson KT Stuttgart: Thieme, pp 157–168
Bobak, P, Bodis-Wollner, I, Harnois, C, Maffei, L, Mylin, L, Podos, S, Thornton, J (1983) Pattern electroretinograms and visual evoked potentials in glaucoma and multiple sclerosis. Am J Ophthalmol 96: 72–83
Bodis-Wollner, I, Bobak, P, Harnois, C, Mylin, L (1984) Methodological aspects of signal-to-noise evaluation of simultaneous pattern electroretinogram and visual evoked potential recording. Doc Ophthalmol Proc Series 40: 39–48
Fiorentini, A, Maffei, L, Pirchio, M, Spinelli, D, Porciatti, V (1981) The ERG in response to alternating gratings in patients with diseases of the peripheral visual pathway. Invest Ophthalmol Vis Sci 21: 490–493
Hess, R, Baker, JR (1984) Human pattern-evoked electroretinogram. J Neurophysiol 51: 939–951
Howe, JW, Mitchell, KW (1984) Simultaneous recording of pattern electroretinogram and visual evoked cortical potential in a group of patients with chronic glaucoma. Doc Ophthalmol Proc Series 40: 101–107
Korth, M (1983) Pattern-evoked and luminance evoked responses in the human electroretinogram. J Physiol 337: 451–469
Marx, MS, Bodis-Wollner, I, Podos, SM, Teitzelbaum, CS (1986) The pattern ERG and VEP in glaucomatous optic nerve disease in the monkey and human. In: Evoked Potentials. Frontiers of Clinical Neurosciences Series Vol 3, (eds) Cracco, RQ, Bodis-Wollner, I. New York: Alan Liss, pp 117–126
Odom, VJ, Maida, TM, Dawson, WW (1982) Pattern evoked retinal responses (PEER) in human: effects of spatial frequency, temporal frequency, luminance and defocus. Curr Eye Res 2: 99–108`
Papst, N, Bopp, M, Schnaudigel, OE (1984a) Pattern electroretinogram and visually evoked cortical potentials in glaucoma. Albrecht von Graefes Arch Clin Exp Ophthalmol 222: 29–33
Papst, N, Bopp, M, Schnaudigel, DE (1984b) The pattern electroretinogram associated with elevated intraocular pressure. Albrecht von Graefes Arch Clin Exp Ophthalmol 222: 34–37
Porciatti, V, Von Berger, GP (1984) Pattern electroretinogram and visual evoked potential in optic nerve disease: early diagnosis and prognosis. Doc Ophthalmol Proc Series 40: 117–126
Porciatti, V, Von Berger, GP (1985) Retinal and cortical potentials in response to alternating gratings in the diagnosis of the optic nerve diseases. In: Evoked Potentials, vol 2, (eds) Nodar, RH, Barber, C. Woburn, England: Butterworth, pp 319–328
Sokol, S, Jones, K, Nadler, D (1983) Comparison of the spatial response properties of the human retina and cortex by simultaneously recorded pattern ERGs and VEPs. Vision Res 7: 723–727
Wanger, P, Persson, HE (1983) Pattern-reversal electroretinograms in unilateral glaucoma. Invest Ophthalmol Vis Sci 24: 749–753
Wanger, P, Persson, HE (1985) Pattern reversal electroretinograms in ocular hypertension. Doc Ophthalmol 61, 1: 27–31
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Porciatti, V., Falsini, B., Brunori, S. et al. Pattern electroretinogram as a function of spatial frequency in ocular hypertension and early glaucoma. Doc Ophthalmol 65, 349–355 (1987). https://doi.org/10.1007/BF00149941
Issue Date:
DOI: https://doi.org/10.1007/BF00149941