Headache HubOcular migraine
Ocular migraine: symptoms, criteria, and tracking
Zigzag lines, shimmering lights, blind spots that drift across your vision. Ocular migraine, formally migraine with visual aura, is common and usually harmless, but it is worth understanding, naming, and tracking. This guide covers the ICHD-3 criteria, how it differs from retinal migraine, and how a clear symptom record changes the conversation with your doctor.
The basics
What is ocular migraine?
Ocular migraine, also called visual migraine or migraine with visual aura, is characterized by temporary visual disturbances that may occur with or without headache. Under ICHD-3, these symptoms typically develop gradually and affect both visual fields.
Visual characteristics
- Zigzag lines or geometric patterns
- Temporary blind spots (scotomas)
- Flashing or shimmering lights
- Gradual development over 5 to 20 minutes
Prevalence and demographics
- Migraine with aura
- About 25% of people with migraine
- Gender ratio
- Roughly 2:1 female to male
- Aura duration
- 5 to 60 minutes
- Visual aura
- About 90% of all auras
Figures reflect published epidemiological literature.
Important note
Sudden vision loss or new visual symptoms should be evaluated promptly to rule out serious conditions like stroke or retinal detachment.
The clinical standard
ICHD-3 criteria for migraine with visual aura
ICHD-3 code 1.2.1. These are the criteria headache specialists apply when visual aura is on the table. Notice how much depends on timing and progression, exactly the details that fade from memory by appointment day.
A. Visual symptoms
Fully reversible visual symptoms: positive features (flickering lights, spots, lines) and/or negative features (partial loss of vision).
B. Characteristic features
At least three of the ICHD-3 aura characteristics, including gradual spread over 5 minutes or more, duration of 5 to 60 minutes, and unilateral symptoms.
C. Relationship to headache
The aura is accompanied by headache, or followed by headache within 60 minutes. Some attacks occur without any headache at all.
D. Not better explained
The symptoms are not better accounted for by another ICHD-3 diagnosis, and other causes of transient visual disturbance have been considered.
How tracking with Ember helps
Capture the visual pattern
Describe the zigzags, blind spots, or shimmering in your own words while the episode is fresh. Ember records the details clinicians look for.
Time every episode
How fast symptoms built, how long they lasted, and whether headache followed. Timing is central to the ICHD-3 criteria for aura.
See the pattern over months
Frequency, triggers, and how attacks evolve, tracked as they happen instead of reconstructed from memory in the waiting room.
Ember helps you track and organize your visual symptoms against the ICHD-3 framework. It does not diagnose, and it never replaces evaluation by a clinician.
Know the difference
Ocular migraine vs retinal migraine
The two are often confused, but the distinction matters clinically. The single most important question: one eye, or both?
Ocular migraine (visual aura)
- Both eyes affected: visual disturbances appear in both visual fields
- Positive symptoms: zigzag lines, flashing lights, geometric patterns
- Gradual onset: develops over 5 to 20 minutes
- Duration: 5 to 60 minutes is typical
- More common: about 25% of people with migraine experience aura
Retinal migraine
- One eye only: monocular visual disturbance or vision loss
- Negative symptoms: blind spots, partial or complete vision loss
- Sudden onset: can develop rapidly
- Duration: minutes to hours
- Rare condition: always warrants prompt medical evaluation
Track your visual symptoms and build a history your doctor can use.
Questions
Frequently asked questions
Keep reading
Related visual and migraine conditions
Next step
Experiencing visual disturbances?
Describe what you see to Ember while it is fresh. Your episodes become a structured, ICHD-3-aware history you and your doctor can act on.