Incipient non-arteritic anterior ischaemic optic neuropathy: a distinct clinical entity, the Singapore scene 3
Related Experiment Video
Updated: Oct 21, 2026

Using Retinal Imaging to Study Dementia
Published on: November 6, 2017
1Neuro-Ophthalmology Service, Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751. jbarrycullen@yahoo.com.
Abstract:
We report five cases of non-arteritic anterior ischaemic optic neuropathy (NA-AION) where spontaneous resolution of the optic disc swelling occurred, and all relevant visual modalities were normal at presentation and remained so until resolution of the process after a median time of 9.6 weeks. This condition, which can be termed 'incipient NA‑AION' or 'threatened NA-AION', should be recognised so that unnecessary investigations for other and more serious causes of optic disc swelling can be prevented.
More Related Videos
Related Concept Videos
Glaucoma: Overview
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
Diabetic Retinopathy
Transient Ischemic Attack l: Introduction

