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eye reflexes both the internal and the external (extrinsic) eye muscles are necessary for proper eye function.the internal muscles are controlled by the autonomic nervous system ciliary body : alters lens curvature radial and circular muscles of the iris : control pupil size the external muscles are the ructus and oblique muscles attached to the eyeball exterior = control eye movements and make it possible to follow moving objects responsible for convergence ( reflexive movement of the eyes medially when we view close objects ) controlled by somatic fibers of cranial nerves III IV, AND VIwhen the eyes are suddenly exposed to bright light,the pupils immediately constrict this is the photopupillary reflex = prevents excessively bright light from damaging the delicate photoreceptors.the pupils also constrict reflexively when we view close objects this accomodation pupilary reflex provides for morre acute vision
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