Survey of ophthalmology
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Survey of ophthalmology · Jan 2005
Review Case ReportsSystemic and intraocular manifestations of West Nile virus infection.
Since the introduction of West Nile virus in the Western Hemisphere in 1999, the incidence of human infection has increased dramatically. As this virus spreads westward across the United States, ophthalmologists should be aware of this presently uncommon but important condition. ⋯ Intraocular involvement with West Nile virus infection was first described in February 2003, and a variety of ophthalmic manifestations have since been recognized. A complete survey of the systemic and intraocular manifestations of West Nile virus infection relevant to the ophthalmologist is presented.
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Survey of ophthalmology · Jan 2005
ReviewPerioperative posterior ischemic optic neuropathy: review of the literature.
Posterior ischemic optic neuropathy (PION) is an uncommon cause of perioperative visual loss. Perioperative PION has been most frequently reported after spinal surgery and radical neck dissection. The visual loss typically presents immediately after recovery from anesthesia, although it may be delayed by several days. ⋯ The cause is unknown, although patient-specific susceptibility to perioperative hemodynamic derangements is likely. No treatment has proven to be effective. The prognosis for visual recovery is generally poor.