PGIMER MCQs for MD MS Preparations | Argyll-Robertson pupil

True about Argyll-Robertson pupil 

a. Near reflex present 
b. Seen in tertiary syphilis 
c. Seen in Diabetes Mellitus 
d. Pupil is small in size 
e. Pupil constrict to near object & not to light

Ans. (A) Near reflex present; (B) Seen in tertiary Syphilis, (C) Seen in Diabetes Mellitus; (D) Pupil is small in size. E. Pupil constrict to near object & not to light

“Argyll- Robertson pupil (ARP) — Accommodation reflex is preserved’

The essential features of A.R. Pupil:

- Bilaterally symmetric

- Meiosis

- Poor dilation in darkness.

- Absence or marked impairment of light reflex.

- Relative preservation of near response (light-near dissociation)

- Pupil may be irregular due to iris damage and shows impaired dilation to mydratic drugs

• Pseudo Argyll -Robertson Pupil is seen in aberrant degeneration of 3rd nerve