March 1989
Volume 30, Issue 3
Free
Articles  |   March 1989
Ocular blood flow in unilateral carotid stenosis and hypotension.
Author Affiliations
  • R M McFadzean
    Department of Neuro-ophthalmology, Institute of Neurological Sciences, Glasgow, Scotland.
  • D I Graham
    Department of Neuro-ophthalmology, Institute of Neurological Sciences, Glasgow, Scotland.
  • W R Lee
    Department of Neuro-ophthalmology, Institute of Neurological Sciences, Glasgow, Scotland.
  • A D Mendelow
    Department of Neuro-ophthalmology, Institute of Neurological Sciences, Glasgow, Scotland.
Investigative Ophthalmology & Visual Science March 1989, Vol.30, 487-490. doi:
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    • Get Citation

      R M McFadzean, D I Graham, W R Lee, A D Mendelow; Ocular blood flow in unilateral carotid stenosis and hypotension.. Invest. Ophthalmol. Vis. Sci. 1989;30(3):487-490.

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Abstract

Ocular blood flow was measured in the juxtapapillary choroid, retrolaminar optic nerve and ciliary body mesoderm using 14C-labelled iodoantipyrine with quantitative autoradiography in seven anesthetized baboons in an experimental model of cerebral and ocular ischemia induced by hemorrhagic hypotension following unilateral common carotid stenosis, with external carotid ligation. The eyes of seven baboons with unilateral common carotid occlusion were also examined histologically for evidence of structural changes. This autoradiographic method allowed measurement of blood flow in different ocular structures and a significant change was noted in the optic nerve of stenosed animals, without structural damage.

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