Swinging flashlight tests
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The swinging-flashlight test is used to help a practitioner identify a relative afferent pupillary defect. Contents. 1 Process; 2 Interpretation; 3 See also.
How to test for a relative afferent pupillary defect (RAPD)
The swinging-flashlight test compares the direct light reactions of both eyes ( Levatin et al., ). Preconditions are two pupils with the ability to react equally, i.e.
What is Being Tested?
The Swinging Flashlight Goes Digital
Description:This can be demonstrated with the swinging flashlight test, in which the light is moved back and forth between the eyes every two to three seconds. Causes of RAPDs Common causes of unilateral optic nerve disorders that can be associated with a RAPD include ischaemic optic neuropathy, optic neuritis, optic nerve compression orbital tumours or dysthyroid eye disease , trauma, and asymmetric glaucoma. An abnormal RAPD in which the amplitude from right eye stimulation is substantially less than that of the left eye. When the light is moved to the abnormal left eye e.
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