Acute unilateral visual loss as a first presentation of mixed phenotype acute
leukaemia

Acute unilateral visual loss as a first presentation of mixed phenotype acute
leukaemia

Central retinal artery occlusion, Leukaemia, Painless vision loss, Hyperviscosity syndrome

Abstract
Central retinal artery occlusion is typically a thromboembolic phenomenon associated with atherosclerotic disease.
This case presentation describes a rare case of CRAO in a young male secondary to hyperviscosity syndrome as
a first symptom ofMixed Phenotype Acute Leukaemia. It is imperative for emergency physicians to recognise an
atypical presentation of painless vision loss and evaluate such patients thoroughly, ensuring timely and vision
sparing interventions.
Keywords Central retinal artery occlusion, Leukaemia, Painless vision loss, Hyperviscosity syndrome

Chelsea Tse Woon Ong1*, Huiling Huang1

and Choon Peng Jeremy Wee1

2025

Peri Irawan

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