"DWI: may show diffusion restriction of the optic nerve with low ADC values"
"T1 C+ (Gd): may show patchy enhancement of the optic nerve"
"Ischaemic optic neuropathy (ION) is an acute ischaemic condition caused by interrupted blood flow to the optic nerve resulting in varying degrees of blindness. It is classified into anterior (AION) and posterior (PION) according to the affected part of the optic nerve. Each group is further divided into arteritic (often caused by giant cell arteritis) and non-arteritic 1."
"Ischaemic optic neuropathy (ION) is an acute ischaemic condition caused by interrupted blood flow to the optic nerve resulting in varying degrees of blindness. It is classified into anterior (AION) and posterior (PION) according to the affected part of the optic nerve. Each group is further divided into arteritic (often caused by giant cell arteritis) and non-arteritic 1."
"Ischaemic optic neuropathy (ION) is an acute ischaemic condition caused by interrupted blood flow to the optic nerve resulting in varying degrees of blindness. It is classified into anterior (AION) and posterior (PION) according to the affected part of the optic nerve. Each group is further divided into arteritic (often caused by giant cell arteritis) and non-arteritic 1."
"In anterior ION (AION), ischaemia occurs secondary to occlusion of the short posterior ciliary arteries (SPCAs), with resultant ischaemia of the optic nerve head. Arteritic anterior ION (AAION) is secondary to blood vessel inflammation, most commonly from giant cell arteritis, while the non-arteritic anterior (NAION) is secondary to non-inflammatory diseases and is often associated with hypertension, diabetes mellitus, obstructive sleep apnoea, ischaemic heart disease, and hyperlipidaemia 5."
"In anterior ION (AION), ischaemia occurs secondary to occlusion of the short posterior ciliary arteries (SPCAs), with resultant ischaemia of the optic nerve head. Arteritic anterior ION (AAION) is secondary to blood vessel inflammation, most commonly from giant cell arteritis, while the non-arteritic anterior (NAION) is secondary to non-inflammatory diseases and is often associated with hypertension, diabetes mellitus, obstructive sleep apnoea, ischaemic heart disease, and hyperlipidaemia 5."