Klinische Monatsblätter für Augenheilkunde
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Klin Monbl Augenheilkd · May 2008
Case ReportsPerioperative visual loss: a rare complication of general surgery.
Perioperative visual loss (PVL) refers to the loss of vision following surgery performed at distance from the visual pathways. An ischemic optic neuropathy (ION) is the most frequent clinical presentation of PVL, and can be bilateral. ⋯ PVL is a rare but dreadful complication of surgery, and is usually associated with severe anemia. Like other causes of ION, there is no specific therapy. Prompt correction of the anemia might decrease the rate of this complication.
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Klin Monbl Augenheilkd · May 2008
Case ReportsFalse negative apraclonidine test in two patients with Horner syndrome.
Because of denervation supersensitivity, a miotic pupil in a sympathetically-denervated eye dilates in response to a dilute or weak alpha-1-agonist drug. A reversal of anisocoria after topical apraclonidine is considered as a positive test result that diagnoses a unilateral Horner syndrome. ⋯ Neither patient demonstrated a reversal of anisocoria, the current criterion for diagnosing a Horner syndrome using apraclonidine. Thus, these two patients with an established oculosympathetic defect were said to have a "negative test" for Horner syndrome. Yet both women showed subtle pupil and/or lid changes in response to apraclonidine that were consistent with sympathetic denervation supersensitivity. Reversal of anisocoria following topical apraclonidine does not occur in all patients with a unilateral oculosympathetic defect and more specific parameters for defining a positive test result might optimize apraclonidine's utility as a diagnostic test for Horner syndrome.
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Klin Monbl Augenheilkd · May 2008
Case ReportsHeerfordt syndrome with unilateral facial nerve palsy: a rare presentation of sarcoidosis.
Heerfordt syndrome is rare and is characterized by fever, uveitis, parotid gland enlargement, and facial nerve palsy. We hereby present a case of Heerfordt syndrome with unilateral facial nerve palsy as a presentation of sarcoidosis. ⋯ Heerfordt syndrome is a rare manifestation of neurosarcoidosis and has to be included in the differential diagnosis of facial nerve palsy.