Effect of the Sympathetic Nervous System on Accommodation
| Autor: | Kerry G. Stephens |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
medicine.medical_specialty
Sympathetic nervous system Sympathetic Nervous System p-Hydroxyamphetamine business.industry Accommodation Ocular Alpha (ethology) Adrenergic Stimulation Autonomic innervation Receptors Adrenergic alpha Phenylephrine Hydrochloride Hydroxyamphetamine Hydrobromide Stimulation Chemical Phenylephrine Ophthalmology Endocrinology medicine.anatomical_structure Internal medicine Receptors Adrenergic beta medicine Humans business Accommodation Optometry |
| Zdroj: | Optometry and Vision Science. 62:402-406 |
| ISSN: | 1040-5488 |
| Popis: | The accommodative effects of alpha- and beta-adrenergic stimulation were investigated in human subjects by measuring changes in the response ACA ratio and in the response accommodative amplitude as a result of instilling hydroxyamphetamine hydrobromide and phenylephrine hydrochloride. Statistically significant increases in the ACA ratios were found to result from hydroxyamphetamine hydrobromide, but not from phenylephrine hydrochloride. The accommodative amplitude significantly decreased under the influence of each agent. It was concluded that these adrenergic effects on accommodation were mediated through the beta-receptor sites. This provides further evidence of the dual autonomic innervation of accommodation. |
| Databáze: | OpenAIRE |
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