Abstract
The effect of an ocular administration of the alpha-1 adrenergic agonist phenylephrine was studied in 23 cases of grass sickness and 12 control horses. In the horses with grass sickness there was a significantly greater mean increase in the size of the palpebral fissure, as measured by the change in the angle of the eyelashes to the head observed from a frontal view.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adrenergic alpha-Agonists* / administration & dosage
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Animals
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Autonomic Nervous System Diseases / complications
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Autonomic Nervous System Diseases / diagnosis
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Autonomic Nervous System Diseases / veterinary*
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Blepharoptosis / diagnosis
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Blepharoptosis / etiology
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Blepharoptosis / veterinary*
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Case-Control Studies
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Horse Diseases / diagnosis*
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Horse Diseases / etiology
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Horses
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Ophthalmic Solutions
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Phenylephrine* / administration & dosage
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Poaceae
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Predictive Value of Tests
Substances
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Adrenergic alpha-Agonists
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Ophthalmic Solutions
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Phenylephrine