Abstract
A model of the ERG focusing on the insulation effect of silicone oil replacing the vitreous was used to quantify the ERG. The electrical properties of the structures of the eye, the frequency content of the ERG and the percentage of the silicone oil along with the remaining vitreous were incorporated in the model. The result was that it was not until at least 50 per cent of the vitreous was replaced with silicone oil that there was a small reduction in the ERG. As more silicone oil was put into the vitreous cavity the ERG became smaller. If the replacement were large leaving a layer of vitreous 0·24 mm thick, little ERG would be measured even if the retina were functional.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Arden, G. B., Brown, K. T. andMirakami, M. (1963) Local electroretinogram of cat recorded under oil.Proc. Physiol. Soc., 8th–9th Nov. 1963, 22P–23P.
Armaly, M. F. (1962) Ocular tolerance to silicones. 1. Replacement of aqueous and vitreous by silicone fluids.Arch. Ophthalmol.,68, 390–395.
Doslak, M. J. (1978) The effects of variations of the conducting media inhomogeneities on the electroretinogram. Ph.D. Dissertation, Case Western Reserve University.
Doslak, M. J., Plonsey, R. andThomas, C. W. (1980) The effects of variations of the conducting media inhomogeneities on the ERG.IEEE Trans.,BME-27, 88–94.
Doslak, M. J., Plonsey, R. andThomas, C. W. (1981) Numerical solution of the bioelectric field of the e.r.g.Med. Biol. Eng. & Comput.,19, 149–156.
Doslak, M. J. andHsu, P. (1984) Application of a bioelectric field model of the ERG to the effect of vitreous haemorrhage. ,22, 552–557.
Doslak, M. J. (1988) Electroretinography. InEncyclopedia of medical devices and rehabilitation.Webster, J. G. (Ed.), John Wiley & Sons, New York.
Esser, J., Foerster, M. H. andLaqua, H. (1983) ERG-Befunde bei Patienten mit intraokularer Silikonol-Fullung.Fortschr. Ophthalmol.,80, 128–129.
Foerster, M. M., Esser, J. andLaqua, H. (1985) Silicone oil and its influence on electrophysiologic findings.Am. J. Ophthalmol.,99, 201–206.
Gregor, Z. (1984)Graphs and legends. Moorfields Eye Hospital, London.
Lee, P., Donovan, R. H. andMukai, N. (1969) Intravitreous injection of silicone: an experimental study.Ann. Ophthalmol.,1, 15–25.
Meredith, T. A., Lindsay, D. T., Edelhauser, H. F. andGoldman, A. I. (1985) Electroretinographic studies following vitrectomy and intraocular silicone oil injection.Br. J. Ophthalmol.,69, 254–260.
Momirov, D., van Lith, G. H. M. andZivojnovic, R. (1983) Electroretinogram and electro-oculogram of eyes with intravitreously injected silicone oil.Ophthalmologica,186, 183–188.
Ober, R. R., Blanks, J. C., Ogden, T. E., Pickford, M., Minckler, D. S. andRyan, S. J. (1983) Experimental retinal tolerance to liquid silicone.Retina,3, 77–84.
Plonsey, R. (1969)Bioelectric phenomena. McGraw-Hill Book Co., New York.
Thaler, A., Lessel, M. R., Gnad, H. andHeilig, P. (1986) The influence of intravitreously injected silicone oil on electrophysiological potentials of the eye.Documenta Ophthalmologica,62, 41–46.
Warwick, R. (1976)Eugene Wolff's anatomy of the eye and orbit. W. B. Saunders Co. Philadelphia and Toronto.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Doslak, M.J. Quantitative analysis of the insulating effect of silicone oil on the electroretinogram. Med. Biol. Eng. Comput. 27, 254–259 (1989). https://doi.org/10.1007/BF02441482
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02441482