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
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Health promotion in areas of multiple deprivation : a report of a symposium held by The Royal College of Physicians and Surgeons of Glasgow
TL;DR: There was great potential for NHS professionals and those skilled in community development to co-operate in creating, and responding to, that community demand.
Journal ArticleDOI
Stress and disease: the missing link. A vasospastic theory. II. The nature of degenerative arterial disease.
TL;DR: An analysis of the evidence indicates that the initiation and progress of atherosclerosis might well be explained by repeated bouts of arterial constriction in relation to life stresses, through increased blood flow velocity and turbulence at points of constriction.
Journal ArticleDOI
Effects of a fall in the intraocular pressure level on the peripapillary fluorescein angiogram in chronic opern-angle glaucoma.
Leila Laatikainen,Pekka Mäntylä +1 more
TL;DR: Fluorescein angiography with the technique used cannot be regarded as a suitable method for evaluating the safe pressure level in individual eyes and indicates the presence of permanent anatomic changes in the peripapillary choroidal vasculature.
Book ChapterDOI
The Effect of Elevated Intraocular Pressure on the Human ERG and VER
G. Bartl,O. Benedikt,H. Hiti +2 more
TL;DR: It is shown that the alterations of the ERG and responses of the optic tract at raised intraocular pressure (IOP) are caused by a decrease of the blood supply and damage to the optic disc rather than the retina.
Book ChapterDOI
Screening for Primary Open-Angle Glaucoma
TL;DR: Primary open-angle glaucoma is a significant cause of visual loss among the elderly, but it is rarely diagnosed by the primary care clinician.
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.