Flashcards in Vision - Muscles and Neural Pathways Deck (35)
Through what pathway does light travel once it hits the retina?
Optic nerve, optic chiasma, optic tract
What are the causes of pupil abnormalities?
Abnormal light reflex
What is the pathway of the efferent limb?
Preganglionic parasympathetic past to the orbit
Parasympathetic fibres go to and synapse in ciliary ganglion
Postganglionic fibres go through short ciliary nerves o constrictor papillae
What are the common causes of absent/abnormal pupillary reflex?
Detachement, degeneration or dystrophy of retina
Disease of the 3rd cranial nerve