Relative afferent pupillary defect Flashcards
1
Q
what is it?
A
swinging light test
2
Q
why?
A
a lesion anterior to the optic chiasm i.e. optic nerve or retina
3
Q
what is seen?
A
the affected and normal eye appears to dilate when light is shone on the affected
4
Q
causes
A
retina: detachment
optic nerve: optic neuritis e.g. multiple sclerosis
