Test: Accomodation Eye Test

Video Link

Background/Purpose

Procedure

Purpose: Tests cranial nerve 2 (optic) and 3 (oculomotor) Instructions: Method 1: Have the patient read something in the distance (such as clock) then put reading material ~18” from face and ask them to read it. Method 2: Dr. hold finger about 24” from patient’s nose. Slowly bring finger inward until eyes converge and pupil constrict Evaluation: Can the patient can adjust from seeing far to near? Do the pupils constrict when looking close-up? Do the pupils converge equally bilaterally? What causes pupillary constriction with accommodation? The ciliary muscles change the shape of the lens The iris/pupillary sphincter muscle constricts the pupil Both are activated by the Edinger-Westphal nucleus (part of CN3) in the mesencephalon.
Performed: Unilaterally

Dialog

Move thumb toward nose until eyes converge and pupil constrict

Criteria

• Symmetrical convergence and pupil constriction

Measurement

0.00

LOINC Code

0

Scale/Grading

Pass/Fail