Method Of Exam

• Have the patient look at a distant object
• Look at size, shape and symmetry of pupils.
• Shine a light into each eye and observe constriction of pupil.
  • Flash a light on one pupil and watch it contract briskly.
  • Flash the light again and watch the opposite pupil constrict (consensual reflex).
  • Repeat this procedure on the opposite eye.

  Normal: 

• Pupils are subtle, mild anisocoria (unequal in size) by itself and not necessarily an abnormal findings. 
• Pupil size is 3-5 mm in diameter.
• They react briskly to light. 
• Both pupils constrict consensually.