Which visual symptoms require emergency care?

A sudden drop or loss of vision, the sudden appearance of many floaters or flashes of light, or a dark veil or curtain across the field of vision should prompt an urgent examination by an ophthalmologist.

Does this triage tool replace a medical consultation?

No. The triage only helps estimate how urgent an eye symptom is; it does not replace examination by an ophthalmologist and makes no diagnosis.

What should I do in case of sudden vision loss?

Sudden vision loss is an emergency: see an ophthalmologist or an eye emergency service without delay.

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Written by Dr Julien GozlanUpdated 18 May 2026

Assessment of Your Visual Symptoms

Name: Assessment of Urgent Visual Symptoms
Creator: Dr Julien Gozlan

Dr Julien Gozlan

Ophthalmologist

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