Download or read book Xth I S C E R G Symposium written by J.T. Pearlman and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two groups of volunteers having no eye disease were examined electro-oculo graphically twice at ten minute intervals. One group smoked in the break, one didn't. In the non-smoking group there are a number of significant correlations between the tested parameters in the dark-period and in the light-period, which could not be found to the same degree in the smoking group. The fact that there were differences between the two groups-even though not interpretable systematicaIly-suggests, that smoking influences physiological processes in the EOG. In the second period of the test, a parallelism in the course of EOG and EEG was observed, the EEG-changes, however, are interpreted more psychologically than pharmacologicaIly. REFERENCES HAASE, E. & MUELLER, W. Meßbare Beeinflussung des EOG durch Zigarettenrauchen1 Klin. Mbl. Augenhk. Bd. 158:677 (1971). HAGER, H. Thrombangiitis obliterans und Auge. Klin. Mbl. Augenhk. Bd. 114:238 (1949). HAUSER, H., SCHWARZE, B.E., ROTH, G. & BICKFORD, R.G. Electroencephalographic changes related to smoking. EEG clin. Neurophysiol. Vol. 10:576P (1958). HEIMBÖCK. Wien. klin. Wschr. Bd. 73:529 (1961). HOLLWICH, F., JÜNEMANN, G. & DAMASKE, E. Auge. In: Nikotin. Edited by Schievelbein. H. Georg Thieme Verlag, Stuttgart (1968). HOMER, L.D. & KOLDER, H. Mathematical model of oscillations in human corneo-retinal potential. Pflügers Arch. ges. Physiol. 287 :197 (1966). KOLDER H. Spontane und experimentelle Änderungen des Bestandpotentials des menschlichen Auges. P{lügerrs Arch. ges. Physiol. 268:258 (1959). KOLDER, H.E. & HOCHGESAND, P. Empirical Model of Electro-Oculogram. Doc. Ophtha!. (1972) in press.

Download or read book XIth I S C E R G Symposium written by E. Dodt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Professor GOSTA KARPE GOSTA KARPE was born in Vadstena, Sweden, 1908. His medical education started in 1927 at the Karolinska Institute in Stockholm During his study he worked parttime in the department of physiology. KARPE served as a resident in the ophthalmological department of Serafiner lasarettet from 1937 till 1941. That year, the university eye clinic was transferred to the newly built Karolinska Sjukhuset, where KARPE became assistant-head of the out-patient department, and lecturer in ophthalmology. In 1949 he was appoin ted professor in ophthalmology at the Karolinska Institute and head of the department of ophthalmology at Karolinska Sjukhuset. KARPE received his doctor degree in 1945 upon completion of his thesis: 'The basis of clinical electroretinography'. This original work opened up a completely new field of clinical investigation. Soon Swedish and foreign pupils flocked into his department to study his new method, a technique at present accepted as an indispensable tool in ophthalmic practice. Since 1945 his work as well as that of his pupils have been devoted mainly to this field of research.

Download or read book XIIth I S C E R G Symposium written by R. Alfieri and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strychnine and picrotoxin were tested as possible antagonists of two puta tive inhibitory transmitters in the retina: taurine and GABA, Strychnine was shown to antagonize the depressive action of taurine on the ERG b-wave, but it did not affect the depressive action of GABA. Conversely, picrotoxin had no effect on the depressive action of taurine on the ERG b-wave, but it antagonizes to some extent the depressive effect of GABA. These data, as well as those obtained through recording tectal evoked responses, lead to the conclusion that taurine and GABA do not act in the same way in retinal inhibitory synaptic transmission. REFERENCES CURTIS, D.R., AW. DUGGAN & G.A.R. JOflNSTON. Glycine, strychnine, picro toxine and spinal inhibition. Brain Res. 14, 759-762 (1969). CURTIS, D.R., L. HOSLI & G. AR. JOHNSTON. A pharmacological study of the depression of spinal neurones by glycine and related aminoacids. Exp. Brain Res. 6, 1-18 (1968 a). CURTIS, D.R., L. HOSLI, G.A.R. JOHNSTON & LH. JOHNSTON. The hyperpolariza tion of spinal motoneurones by glycine and related aminoacids. Exp. Brain Res. 5, 235-258 (1968 b). CURTIS, D.R. & A.K. TEBECIS. Bicuculline and thalamic inhibition. Exp. Brain Res. 16,210-218 (1972). DA VIDSON, N. & H. REISINE. Presynaptic inhibition in cuneate blocked by GABA antagonists. Nature New Biology 234,223-224 (1971).

Download or read book Retinal Pigment Epithelium and Macular Diseases written by Gabriel Coscas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of Documenta Ophthalmologica Proceedings Series collects the scientific papers presented at the 2nd International Symposium on Retinal Pigment Epithelium and the 4th Meeting of the European Macula Group held in Genoa, May 29-June 1, 1996. The Symposium on Retinal Pigment Epithelium was promoted by the University Eye Clinic of Genoa as the natural continuation of the first Symposium held with great success in Genoa in 1988. The previous Meetings of the European Macula Group were held in Coimbra (1988), Crete (1989) and Athens (1994). I was greatly pleased and honoured to host the fourth congress of this distinguished Society and I am grateful to Gabriel Coscas, Jose Cunha-Vaz and George Theodossiadis, found ers of the Society, for selecting Genoa on this occasion. The two meetings integrated well in an unicuum and brought together an exceptional number of outstanding retinal specialists coming from all over the world. All the aspects of the current research concerning retinal pigment epithelial and macular diseases were covered. Several interesting presentations regarded new techniques of retinal and choroidal imaging. A full session was dedicated to the latest advances in culture and transplantation of retinal pigment epithelial cells. Age-related macular degeneration was a major subject for discussion, including new approaches to treatment. This topic was high lighted by a mini-symposium on drusen, including a series of superb lectures on classification, clinicopathological studies, indocyanine green imaging, and laser treatment for prevention of choroidal neovascularization.

Download or read book Inherited Chorioretinal Dystrophies written by Bernard Puech and published by Springer. This book was released on 2014-07-19 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt: This lavishly illustrated atlas provides indispensable information to clinicians, geneticists and visual scientists working with inherited retinal diseases. It is filled with high-quality images, up-to-date genetic information and comprehensive electrophysiology. The data for each individual disorder have been summarised in an accessible, reader-friendly format for easy reference. The illustrations include colour fundus photographs, fluorescein angiograms, OCT scans, electrophysiological studies and pedigrees. The editors and authors are well-known experts in the field and have drawn upon their extensive experience to produce this unique atlas.

Download or read book Techniques in Clinical Electrophysiology of Vision written by G. Niemeyer and published by Springer Science & Business Media. This book was released on 1982-06-30 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 19th ISCEV Symposium, Horgen-Zürich, Switzerland, June 1-5, 1981

Download or read book Visual Electrodiagnosis in Systemic Diseases written by E. Schmöger and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research workers at the Eye Clinic of the Medical Academy of Erfurt are proud of having been entrusted, for the second time, with the organization of the yearly ISCEV symposium. Twelve years ago the 6th Symposium was held in Erfurt. This time we turned to Reinhardsbrunn, an old castle situated in the vicinity of Erfurt on the fringes of the wonderful mountainscape of the Thuringian Forest. Reinhardsbrunn castle serves today as a holiday hotel and convention place. It seemed to us to be the right place for carrying on the discussions in a comfortable and informal way after the actual sessions were over. Comparing the scientific reports read at the 6th and 17th Symposium, both organized in Erfurt, one readily becomes aware of the impressive advances in our rapidly developing field of interest. The technical and, more specifically, the electronic advancements have been enormous, especially in the field of recording and processing the visually evoked cortical potentials·. Adually, the addition of this special field of study to our realm, led to the renaming of the Society some years ago. Moreover, it became more and more obvious that interdisciplinary cooperation between ophthalmologists, physiologists, physi cists, technologists and mathematicians is essential. This is also reflected in the composition of our membership.

Download or read book Ryan s Retina E Book written by SriniVas R. Sadda and published by Elsevier Health Sciences. This book was released on 2022-04-13 with total page 2949 pages. Available in PDF, EPUB and Kindle. Book excerpt: Through six outstanding and award-winning editions, Ryan's Retina has offered unsurpassed coverage of this complex subspecialty—everything from basic science through the latest research, therapeutics, technology, and surgical techniques. The fully revised 7th Edition, edited by Drs. SriniVas R. Sadda, Andrew P. Schachat, Charles P. Wilkinson, David R. Hinton, Peter Wiedemann, K. Bailey Freund, and David Sarraf, continues the tradition of excellence, balancing the latest scientific research and clinical correlations and covering everything you need to know on retinal diagnosis, treatment, development, structure, function, and pathophysiology. More than 300 global contributors share their knowledge and expertise to create the most comprehensive reference available on retina today. - Features sweeping content updates, including new insights into the fundamental pathogenic mechanisms of age-related macular degeneration, advances in imaging including OCT angiography and intraoperative OCT, new therapeutics for retinal vascular disease and AMD, novel immune-based therapies for uveitis, and the latest in instrumentation and techniques for vitreo-retinal surgery. - Includes five new chapters covering Artificial Intelligence and Advanced Imaging Analysis, Pachychoroid Disease and Its Association with Polypoidal Choroidal Vasculopathy, Retinal Manifestations of Neurodegeneration, Microbiome and Retinal Disease, and OCT-Angiography. - Includes more than 50 video clips (35 new to this edition) highlighting the latest surgical techniques, imaging guidance, and coverage of complications of vitreoretinal surgery. New videos cover Scleral Inlay for Recurrent Optic Nerve Pit Masculopathy, Trauma with Contact Lens, Recurrent Retinal Detachment due to PVR, Asteroid Hyalosis, and many more. - Contains more than 2,000 high-quality images (700 new to this edition) including anatomical illustrations, clinical and surgical photographs, diagnostic imaging, decision trees, and graphs. - Enhanced eBook version included with purchase. Your enhanced eBook allows you to access all of the text, figures, and references from the book on a variety of devices.

Download or read book Basic and Clinical Applications of Vision Science written by V. Lakshminarayanan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic and Clinical Applications of Vision Sciences contains the edited papers presented at the Enoch Vision Science Symposium, April 27-30 1996, which was organized in honor of the pioneer in vision science, Dr Jay M Enoch. Dr Enoch served for twelve years as Dean, School of Optometry, University of California, Berkeley. The book is organized along the lines of Dr. Enoch's contributions to vision science, but is not limited to these topics. Of special note, the reader will find papers on important new developments in photoreceptor, ophthalmic and visual optics, retinal imaging, ophthalmic physiology and pathophysiology, visual psychophysics and visual techniques. The papers are grouped into the following sections: photoreceptor optics; ophthalmic and visual optics; binocular vision, developmental vision, eye movements and physiology; ophthalmic dysfunction; visual psychophysics and clinical applications; history of vision science. £/LIST£

Download or read book Pediatric Neuro Ophthalmology written by Michael C. Brodsky and published by Springer Science & Business Media. This book was released on 2010-03-23 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Due to the generous representation of the afferent visual system within the brain, neurological disease may disrupt vision as a presenting symptom or as a secondary effect of the disease. Conversely, early developmental disturbances of vision often disrupt ocular motor control systems, giving rise to complex disorders such as nystagmus, strabismus, and torticollis. The signs and symptoms of neurological disease are elusive by their very nature, presenting a confounding diagnostic challenge. Neurological medications and neurosurgical treatments can produce neuro-ophthalmological dysfunction that can be difficult to distinguish from disease progression. Affected patients may experience substantial delays in diagnosis, and are often subjected to extensive (and expensive) diagnostic testing. Scientific articles pertaining to specific disorders are scattered throughout medical subspecialty journals. These children continue to "fall through the cracks" of our medical education system. The increasing recognition that pediatric neuro-ophthalmology comprises a distinct set of diseases from those seen in adults has led to its emergence as a dedicated field of study. "Since the original publication of Pediatric Neuro-Ophthalmology nearly fourteen years ago, interest in the field has burgeoned. Pediatric ophthalmology and pediatric neurology subspecialty conferences often include symposia dedicated to recent advances in pediatric neuro-ophthalmology. Technical advances in neuroimaging have given rise to a more integrated mechanistic classification of neuro-ophthalmological disease in children. Our understanding of neurodevelopmental disorders of the visual system has expanded, longstanding monoliths have been dissembled into component parts, basic molecular mechanisms have taken center stage, and genetic underpinnings have become definitional. Evolutionary alterations can now be observed at the level of the gene, adding a new dimension to our understanding of disease pathogenesis. New classifications now encompass clinically disparate conditions. Descriptive definitions have been supplanted by mechanistic ones, and clinical definitions superseded by genetic ones. Our concept of disease pathogenesis has been revised and in some cases overturned. Bearing witness to these remarkable advancements has compelled me to enhance and expand the first edition of Pediatric Neuro-Ophthalmology into this new and revised one. "In the first edition of this book, our goal was to present the clinical characteristics, diagnostic evaluation, and therapeutic options for the common neuro-ophthalmologic disorders of childhood. In so doing, we designed the book to be provide a narrative journey through the thought processes involved in the clinical management of these disorders. In this edition, I have retained the basic narrative format of original book, while expanding the exploration of these complex visual disorders in the context of the many new scientific advancements and discoveries that have come to light. These conditions are fun to diagnose, fascinating to understand, and gratifying to manage." --from the Preface to the 2nd Edition.

Download or read book Ultrasonography in Ophthalmology 14 written by J.M. Thijssen and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the 14th SIDUO Congress, Tokyo, Japan 1992

Download or read book First Symposium of ISCERG written by Gösta Karpe and published by . This book was released on 1962 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Colour Vision Deficiencies X written by B. Drum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its inception, the International Research Group on Colour Vision Deficiencies (IRGCVD) has followed the policy that the Symposium Pro ceedings should be as close as possible to a complete record of the scientific content of the meeting. This policy has the advantage of providing an accurate picture of the current state of the art in research on color vision deficiencies, but it also has the disadvantage that papers typically span a wide range of quality. In this volume, however, we have instituted a system of peer review in an effort to enhance scientific quality as much as possible while continuing our past policy of publishing all submitted manuscripts. In addition to being edited for English composition and grammar, each of the papers included here has been carefully reviewed by an IRGCVD member selected for his or her expertise in the specific topic of the paper. Reviewers were instructed to include in their comments suggestions for improvement rather than recom or rejection. In our opinion, this review process mendations for publication has resulted in substantial improvement of many of the articles and has enhanced the value of the publication. We are pleased to acknowledge the efforts of our reviewers and offer them our sincere thanks for their important contributions to Colour Vision Deficiencies X. The Editors B. Drum, J. D. Moreland & A. Serra (eds. ), Colour Vision Deficiencies X, p. xiii.

Download or read book Colour Vision Deficiencies XI written by B. Drum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The eleventh Symposium of the International Research Group on Colour Vision Deficiencies (IRGCVD) was held 20-23 June 1991 in Sydney, Aus tralia, ably hosted by local organizer Stephen Dain. A total of 35 talks and 10 posters were presented. Papers based on 37 of these presentations are included here, in Colour Vision Deficiencies XI. The scientific program featured sessions on three special topics, with each topic highlighted by an invited speaker. The opening session on the Genetics of congenital colour vision deficiencies began with a superb invited lecture by Charles Weitz about his pioneering work on the molecular genetics of tritanopia. The session on the second special topic, Spatial aspects of colour vision, began with the launching of a new IRGCVD tradition, as 1991 Verriest Memorial Award recipient Harry Sperling presented the first Ver riest Memorial Lecture on his recent studies of spatial discrimination of heterochromatic stimuli. Dr. Sperling reported new evidence that certain asymmetries in red-green opponent colour vision can be explained by the spatial organization of colour-opponent retinal neurons. In the third special session, on Occupational aspects of colour vision, Barry Cole took the audi ence on a fascinating tour of the historical development of colour vision standards in his invited lecture entitled 'Does defective colour vision really matter?'. In addition to the three special topics, many interesting presentations were given in topical sessions on Variations in normal colour vision, Acquired colour vision deficiencies and Colour vision tests and testing methods.

Download or read book Colour Vision Deficiencies XII written by B. Drum and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 545 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the 98 presentations of the XIIth Symposium on Colour Vision Deficiencies, 61 were selected after peer review and revision by the authors. In addition to these contributions this volume contains a cumulative index to all authors in the IRGCVD proceedings since the first one in 1968, including the present volume. The contents include contributions on basic questions of anatomical and electrophysiological organisation of the neural pathways underlying colour vision; and on ways in which disturbances of these pathways can produce acquired colour vision deficiencies. Further contributions deal with genetics and congenital red--green colour deficiencies and colour vision testing. The resulting publication contains much of interest to basic vision scientists as well as to specialists in colour vision deficiencies.

Download or read book National Library of Medicine Current Catalog written by National Library of Medicine (U.S.) and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: First multi-year cumulation covers six years: 1965-70.

Download or read book Colour Vision Deficiencies XIII written by C.R. Cavonius and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 13th biennial Symposium of the International Research Group on Colour Vision Deficiencies was held from 27 July to 30 July, 1995, in the splendidjin de siecle Theatre Saint Louis, in Pau, France. A total of 80 papers and posters were presented during the four days, of which 56 have been selected for inclusion in this volume. Each has been reviewed by two of the Editors. Additionally, in numerous cases in which specialized knowledge was called for the Editors asked for external help; their assistance is acknowledged below. While Pau now exists largely on agriculture and, more recently, oil extraction and refining, a century ago it was a winter resort that rivalled Cannes and Nice; indeed, Baedeker judged the air of Pau to be preferable for those of a nervous disposition. Pau and the surrounding Beam district are rich in history and have close ties to the Basque region, both of which were exploited brilliantly by the local organizers, Doctors Jean and Veronique Lied, to introduce the partici pants to the gastronomy and traditions of the region. The Committee of the IRGCVD owe a great debt of gratitude to the external reviewers, Oscar Estevez, Karl Gegenfurtner, Gunilla Haegerstrom-Portnoy, RL. Hilz, John Krauskopf, Anne Kurtenbach, Barry B. Lee, Adam Reeves, Marilyn Schneck, L.T. Sharpe, Eugene Switkes, Wayne Verdon, and B.A.