title: Convergence accommodation: laboratory and clinical evaluation.
abstract: The accommodation stimulated by convergence, CA/C, was measured under laboratory and clinical conditions. There was a small nonlinearity to the CA/C ratios measured under laboratory conditions for three of six subjects. We found that convergence accommodation decreases with decreasing accommodative amplitude but not as rapidly as has been reported in the literature. Our results suggest that convergence accommodation can contribute substantially to the near accommodative response for many patients.
authors.affiliation: College of Optometry, University of Houston, Texas.
authors.forename: B
authors.initials: B
authors.lastname: Wick
authors.forename: D
authors.initials: D
authors.lastname: Currie
mesh_terms: D000065:Accommodation, Ocular / Q000187:drug effects / Q000502:physiology*; D000293:Adolescent; D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage; D002648:Child; D003290:Convergence, Ocular / Q000502:physiology*; D003519:Cyclopentolate / Q000008:administration & dosage; D005260:Female; D006801:Humans; D008297:Male; D010656:Phenylephrine / Q000008:administration & dosage; D011430:Propoxycaine / Q000008:administration & dosage; D011680:Pupil / Q000187:drug effects
chemical_list: D000779:Anesthetics, Local; D010656:Phenylephrine; C005717:proxymetacaine; D011430:Propoxycaine; D003519:Cyclopentolate