Argyll Robertson Pupil

The Argyll Robertson pupil is usually bilateral and characterized by:

• small, irregular pupils


• the size of the pupils may be unequal


• absence of the light reflex


• a prompt accommodation reflex


• pupils slowly dilate with mydriatics

The most common cause of this condition is syphilis. If the aetiology
is syphilitic then the pupils are generally unequal and irregular.

Notice the small pupil pictured here. It is an example of Argyll Robertson
Pupil.

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