Motor aspects of vision. Extraocular eye muscles. Coordinated eye movements. Accommodation. Pupil responses. Pull and action of rectus muscles. Right third nerve palsy. Abducent (6th) nerve palsy. Left fourth nerve palsy. Control of eye movements. Saccades (conjugate eye movement). Nystagmus. Lesions to the medial longitudinal fasciculus. Ciliary body. Lens. Presbyopia. Lens cataracts. Pupillary constriction. Function of the Iris. Sensory aspects of vision. Sclera. Cornea. Visual pathway. Glaucoma.