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Sudden loss of vision Recommend Consult MO urgently. Sudden loss of vision is an ophthalmological emergency Background Sudden vision loss may be transient or persistent [1] Transient vision loss maybe due to TIA [1] 1. 2. May present with: Abrupt loss of vision Some patients may present with blurred vision, other symptoms such as floaters or flashing lights, haloes (may indicate incipient retinal damage) The visual loss may be partial e.g. in retinal detachment the visual loss may be in the upper or lower field of vision Immediate management: Assess eye and consult MO urgently 3. Clinical assessment: Obtain a complete patient history past eye history / past visual acuities medications vision loss sudden or over hours to days? Perform standard clinical observations + BGL Examine both eyes starting with visual acuities note if any pain associated with vision loss floaters or flashing lights? check red eye reflex – loss of reflex may indicate retinal detachment [1] vision loss in one eye or both? 4. Management: Consult MO who will advise urgent evacuation / hospitalisation for Ophthalmologist / Neurologist review if acute physical cause likely (eg. detached retina, vitreous haemorrhage, retinal artery occlusion, retinal vein thrombosis / suspected TIA or other medical conditions) 5. Follow up: If not evacuated/hospitalised, see next MO clinic 6. Referral / Consultation: Consult MO on all occasions of sudden loss of vision Consult MO if symptoms of progressive or potential visual loss such as blurring, floaters flashing lights or if sudden field defects