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Flow of tears
Lacrimal gland > Excretory lacrimal duct > Superior/inferior lacrimal canal > Lacrimal sac > Nasolacrimal duct > Nasal cavity (inferior nasal concha)
Superior oblique muscle innervation
Trochlear N (CN IV)
Lateral rectus muscle innervation
Abducens N (CN VI)
Medial rectus muscle function
Lateral rectus muscle function
Paralysis of a single eye causes...
This reflex may be absent in head trauma victims
Direct and consensual light reflex
Direct and consensual light reflex shows what?
Function of CN III and optic pathway.
Progressive degeneration and opacity of the lens that leads to blindness.
Retinal ischemia and blindness due to impaired drainage of the aqueous humor from the Schlemm's canal.
When the optic disk bulges out due to increased intracranial pressure.
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