How to test for Nystagmus?
1. At first, test the power of the extraocular muscles to eliminate their weakness or paralysis (in that situation, nystagmoid movements will appear). 2. Now ask the patient to look forward. Observe for pendular nystagmus 3. Ask the patient to fix his head or fix the patient’s head by one of your hand.\ 4. Now the patient is asked to fix his vision towards your index finger which is kept laterally in the right side and then in the left (your finger must be placed within the binocular vision of the patient). It is the examination of nystagmus in the horizontal plane. 5. Next place your finger above and then below his head to examine the nystagmus in the vertical plane. 6. Observer nystagmus in both eyes.
