Optic Nerve lesion

Question 0

Causes of optic neuritis?

Answer 0

1. Infective
   - tuberculosis
   - syphilis
   - lyme
2. Non infective:
   - demyelinating (MS), autoimmune related, drug induce

Question 1

Symptoms of Optic neuritis?

Answer 1

1. Gardual reduction of vision within hours or days
2. Central scotoma
3. Retrobulbar optic neuritis (cause pain on eye movement)

Question 2

Management optic neuritis?

Answer 2

Infective: treat underlying disease

Non infective:

• MRI
• lumbar puncture

Tx: high dose steroid

Question 3

Non arteritic Anterior ischemic Optic Neuropathy

Sign and symptom

Answer 3

Sx:

1. Sudden loss of vision
2. Painless
3. No red eye

Sign:

1. Poor vision
2. Disfunction ON
3. Altitudinal VF defect