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Accommodation and the nerve pathway to the ciliary muscle: a review
Author(s) -
Ruskell G. L.
Publication year - 1990
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1990.tb00858.x
Subject(s) - ciliary muscle , ciliary ganglion , accommodation , oculomotor nerve , neuroscience , midbrain , iris (biosensor) , ganglion , anatomy , ciliary body , sphincter , medicine , biology , central nervous system , computer science , computer security , biometrics
Evidence has accumulated recently which challenges the conventional description of the parasympathetic division of the oculomotor nerve pathway to intraocular smooth muscles. It is claimed that the pathway from the midbrain to the ciliary muscle is direct and uninterrupted by a synapse in the ciliary ganglion. A similar, separate claim has been made regarding the innervation of the sphincter muscle of the iris. The weaknesses in the arguments supporting the revised versions are discussed in this review and they are rejected in favour of the conventional pathway.