Unit 6: Differential Diagnosis of Blurred Vision
Non-arteritic anterior ischemic optic neuropathy
Non-arteritic anterior ischemic optic neuropathy (AION) is caused by occlusion of the short posterior ciliary arteries. This results in infarction of the optic nerve head.
Risk Factors:
- Male
- Systemic arteriopathy
- 40-60 years of age
- Small hypermetropic optic discs
- Hypertension
- Diabetes
Retina image for non-arteritic anterior ischemic optic neuropathy
Source: www.retinagallery.com