Factors Regulating the Blood Flow in the Optic Nerve Head

  • Sohan Singh Hayreh


Ischemic disorders of the optic nerve head (ONH) constitute an important cause of blindness or seriously impaired vision. Acute ONH ischemia results in anterior ischemic optic neuropathy (AION) - a seriously blinding disease. There is overwhelming evidence that glaucomatous optic neuropathy is a chronic ischemic disorder of the ONH. Glaucomatous optic neuropathy is seen in primary open angle glaucoma and low (or normal) tension glaucoma. Both AION and glaucomatous optic neuropathy are common disorders, seen more commonly in middle aged and older than in young persons. For a proper understanding of the pathogenesis and management of these important and highly prevalent ischemic disorders of the ONH, it is imperative to know its blood supply and various factors which regulate the blood flow in the ONH.


Optic Nerve Optic Neuropathy Optic Nerve Head Primary Open Angle Glaucoma Ocular Blood Flow 
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© Springer Science+Business Media New York 1995

Authors and Affiliations

  • Sohan Singh Hayreh
    • 1
  1. 1.Department of OphthalmologyUniversity of IowaIowa CityUSA

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