Pathogenesis of visual field defects. Role of the ciliary circulation.
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The present study demonstrates such a sectoral blood supply in the optic nerve head and choroid and is of considerable significance in explaining the site of the lesion and the pathogenesis of these defects.Abstract:
Clinically the presence of nerve fibre bundle defects in glaucoma and non-glaucomatous lesions, and altitudinal or vertical hemianopias in pre-chiasmal lesions has been known for a long time. These suggest a sectoral lesion in the optic nerve or retina. In the majority of such cases, no retinal lesion is seen to account for these visual field defects. It has been presumed that the lesion lies in the optic nerve. Such a visual field defect can be produced only by a sectoral lesion. Most of these field defects are considered to be vascular in origin, but studies of the blood supply of the optic nerve have so far failed to demonstrate any segmental blood supply to the nerve which could explain them. The present study demonstrates such a sectoral blood supply in the optic nerve head and choroid and is of considerable significance in explaining the site of the lesion and the pathogenesis of these defects.read more
Citations
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Journal ArticleDOI
Inferior altitudinal hemianopia associated with a tumor in the posterior fossa: report of a case.
TL;DR: A case in which horizontal inferior hemianopia is associated with a tumor in the posterior fossa producing a triventricular hydrocephalus is described, and the visual field defect is interpreted as a consequence of the pressure by a dilated third ventricle upon the chiasmatic area.
Journal ArticleDOI
Critical flicker frequency (CFF) in man during induced ocular hypertension. II. Technique, and analysis of a normal group.
Book ChapterDOI
Glaucoma and Myopia
TL;DR: The review of these cases shows mostly open angles, pigmented, Krukenberg's spindle, and pathological embryonic remains at chamber angle level between the iris root and Schwalbe’s line that are really pathological, stain positively with Gomori stain, and are not, as stated in the literature, iris processes, normal in the population, andGomori negative.
Book ChapterDOI
Retinal Survival Time and Visual Outcome in Central Retinal Artery Occlusion
TL;DR: For over 150 years, characteristic ophthalmoscopic findings of central retinal artery occlusion (CRAO) are well established; however, there is much confusion in the literature about how long does it take for CRAO to produce irreversible retinal damage.
Proceedings ArticleDOI
Densitometric Analysis Of Blood Flow Of The Optic Nerve Head In Glaucoma
TL;DR: In this article, a detailed topography of the optic nerve head after an intravenous injection of fluorescein dye is presented. But the analysis of peak times, circulation times, intensity ratios and flow rates is not discussed.
References
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Journal ArticleDOI
The Vertebrate Visual System
TL;DR: The 418 pages devoted to these and other structures portray the system as a whole in an orderly fashion and with considerable new material, including a detailed account of the blood supply and drainage.
BookDOI
Kurƶes Handbuch der Ophthalmologie: Dritter Band Orbita · Nebenhöhlen · Lider Tränenorgane Augenmuskeln Auge und Ohr
F. Schieck,M. ƶur Nedden,H. Ƶondek,M. Ƶade,Fr. Wohlwill,O. Weiss,L. W. Weber,R. Thiel,H. Steidle,R. Seefelder,A. Birch-Hirschfeld,C. Bakker,M. Bartels,C. Behr,F. Best,R. Bing,A. Brückner,W. Comberg,R. Cords,E. Cramer,R. Dittler,H. Dold,P. Eisler,H. Erggelet,A. Franceschetti,E. Frey,W. Gilbert,C. Grouven,R. Helmbold,K. vom Hofe,J. Igersheimer,A. Jess,A. Kohlrausch,H. Köllner,R. Kümmell,G. Lenƶ,L. Lichtwitƶ,A. Linck,Walther Löhlein,W. Meisner,H. Otto,R. A. Pfeifer,F. Quensel,W. Reis,H. Rönne,W. Runge,C. H. Sattler +46 more
TL;DR: An important chapter deals with workmen's compensation, a subject that is rapidly becoming of practical importance in all countries, and a best exponent than Thiel could not have been found, as his researches have covered many parts of this field.