NAION

Question 1

What does NAAION stand for?

Answer 1

Non-Arteritic Anterior Ischemic Optic Neuropathy.

Question 2

What are the signs of NAAION related to visual acuity (VA)?

Answer 2

Visual acuity may vary widely; if no light perception (NLP), suspect AAION.

Question 3

What visual field defects are associated with NAAION?

Answer 3

Altitudinal defects, Quadrantic defects.

Question 4

What is RAPD and when does it occur in NAAION?

Answer 4

Relative Afferent Pupillary Defect (RAPD) occurs if the contralateral eye is normal.

Question 5

What optic disc finding is common in NAAION?

Answer 5

Optic disc oedema, usually hyperaemic.

Question 6

What is the primary symptom of NAAION?

Answer 6

Acute, painless unilateral visual loss.

Question 7

What is the first step in managing NAAION?

Answer 7

Emergency referral to ophthalmology.

Question 8

Is there an effective treatment for NAAION?

Answer 8

There is currently no effective treatment for NAAION.