1
Q
what is RAPD
A
‘swinging light test’. It is caused by a lesion anterior to the optic chiasm i.e. optic nerve or retina
2
Q
finding of RAPD
A
the affected and normal eye appears to dilate when light is shone on the affected
3
Q
causes of RAPD
A
retina: detachment
optic nerve: optic neuritis e.g. multiple sclerosis
4
Q
afferent pathway of pupillary light reflex
A
afferent: retina → optic nerve → lateral geniculate body → midbrain
5
Q
efferent pathway of pupillary light reflex
A
efferent: Edinger-Westphal nucleus (midbrain) → oculomotor nerve
opthamology
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