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Sub auspiciis Academiae Ophthalmologicae Internationalis
Publisher: Springer Science & Business Media
When the eyeball is indented in total darkness, within less than 200 mil liseconds an oval or quarter-moon shaped spot of light is perceived in the part of the visual field corresponding to the indented region of the retina. In the seconds following, this phosphene extends across the whole visual field and alters in structure during further eyeball indentation. It is then seen as irregular large bright spots of light, finely structured moving light grains ('light nebula') and stationary bright stars. Regular geometrical patterns appear only when both eyes are indented simultaneously . When the eyeball deformation is released, part of the retina again lights up for another one or two seconds and curved light lines are seen following the course of the larger retinal vessels (Fig. 1). In the following we will review the history of this phenomenon, which played an important role during the first 2200 years of vision theories and in the development of models to explain normal vision. 2. Pre-Socratic philosophers, Plato and Aristotle Alcmaeon of Croton (6-5th century B. C. ), who was a member of the Pythagoraean sect and one of the founders of Greek medicine, was the first to describe mechanical deformation of the eyeball leading to light sensa tions. According to Aristotle's pupil Theophrast of Eresos, Alcmaeon report ed that 'the eye obviously has fire within,for when the eye is struckfireflashes out' [2, p. 88].
There have been books over the years discussing the history of ophthalmology, but none that focus directly on just the most critical thinkers whose insights provided the foundation for the discipline. These men and women advanced knowledge about vision, diagnosis, disease mechanisms, and therapy through innovative thinking and perseverance against old ideas. Their stories are intriguing at a personal level and for showing the complexity of advancing medical science and, therefore, should be required reading for anyone practicing ophthalmology. Foundations of Ophthalmology includes giants such as Young (the nature of color and light), Braille (a practical reading system for the blind), Helmholtz (development of the ophthalmoscope), von Graefe (defining glaucoma), Curie (discovery of radiation and the basis of radiation therapy), Gonin (demonstration how to cure retinal detachment), Ridley (serendipity that led to intraocular lenses), and Kelman (development of phacoemulsification that revolutionized cataract surgery).
All the information you need is provided in this comprehensive, clinical yet concise and practical handbook. Inside you will find up-to-date "tutorial style" information on commonly performed examination skills and interpretation of investigations. Key information is given at a glance, ideal for the busy practitioner or as a revision aid for the trainee. Well-organized, clear and concise text accompanies full colour clinical photographs. The book is unique in that it provides explicit details on the day-to-day management of eye conditions; the reader is expertly guided though both the diagnosis and management of disease conditions. Each chapter also contains guidelines written exclusively for the general practitioner and primary care provider. Optometrists will also find this to be an indispensable guide, as pathologies found in every day practice will be included, enabling the practitioner to give patients qualified information about their symptoms. In depth sections on clinical examination skills essential for clinical practice and professional examinations A purely practical ophthalmology guide The use of images where these are appropriate, rather than for all conditions or none A book written by a staff in their area of subspecialty interest, rather than a few authors attempting to cover a wide range of subjects Tutorials style information on the commonly performed investigations and procedures Specific notes for primary care staff, in particular opticians
Ob Diagnostik oder Therapie – KANSKIs Klinische Ophthalmologie stellt die verschiedenen Augenerkrankungen klar und praxisgerecht dar und vermittelt Ihnen das gesamte Know-how. Seit rund 30 Jahren ein weltweiter Bestseller! Anatomisch gegliedert und systematisch strukturiert, mit hochwertigen klinischen Fotos und Zeichnungen in Kombination mit prägnanten Texten und detaillierten Schemazeichnungen zu Anatomie und Physiologie – „der Kanski" ist das DAS Standardwerk der Augenheilkunde. Das Besondere am Kanski ist auch seine Didaktik – schnell erfassbare Texte plus die dazu passenden Abbildungen helfen Ihnen beim Verstehen und Einprägen der Inhalte. Neu in der 8. Auflage: Rund 900 neue Abbildungen Beschreibung neuer Therapieansätze, z.B. bei Katarakten Aufnahme neuer Behandlungsmethoden, z.B. Laser, Kryotherapie Aktualisierte Nomenklatur der Krankheitsbilder Ob erfahrender Augenarzt oder Arzt in der Weiterbildung - mit KANSKIs Klinische Ophthalmologie sind Sie auf der sicheren Seite!