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Book The History of Ophthalmology  First and second half of the Nineteenth Century  Part Six  Seven and Eight    United States of America  Switzerland

Download or read book The History of Ophthalmology First and second half of the Nineteenth Century Part Six Seven and Eight United States of America Switzerland written by Julius Hirschberg and published by . This book was released on 1990 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The History of Ophthalmology  First half of the Nineteenth Century  Part Two

Download or read book The History of Ophthalmology First half of the Nineteenth Century Part Two written by Julius Hirschberg and published by . This book was released on 1986 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Bibliography of the History of Medicine

Download or read book Bibliography of the History of Medicine written by and published by . This book was released on 1993 with total page 1308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The History of Ophthalmology

Download or read book The History of Ophthalmology written by Julius Hirschberg and published by . This book was released on 1999 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book The History of Ophthalmology  Renaissance of ophthalmology in the Eighteenth Century  Part Three   First half of the Nineteenth Century  Part One

Download or read book The History of Ophthalmology Renaissance of ophthalmology in the Eighteenth Century Part Three First half of the Nineteenth Century Part One written by Julius Hirschberg and published by . This book was released on 1985 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Cumulated Index Medicus

Download or read book Cumulated Index Medicus written by and published by . This book was released on 1965 with total page 1552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ophthalmic Literature

Download or read book Ophthalmic Literature written by and published by . This book was released on 1915 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Critical Dictionary of English Literature and British and American Authors  Living and Deceased  from the Earliest Accounts to the Latter Half of the Nineteenth Century

Download or read book A Critical Dictionary of English Literature and British and American Authors Living and Deceased from the Earliest Accounts to the Latter Half of the Nineteenth Century written by Samuel Austin Allibone and published by . This book was released on 1899 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book History of Ophthalmology

    Book Details:
  • Author : Harold E. Henkes
  • Publisher : Springer Science & Business Media
  • Release : 2012-12-06
  • ISBN : 9400906412
  • Pages : 151 pages

Download or read book History of Ophthalmology written by Harold E. Henkes and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 [1]. 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].