Eye Strain vs Migraine: How to Tell the Difference

Both can cause head pain, light sensitivity and visual disturbance after screen use. But they have different causes, different treatments and different warning signs. Here's how to tell them apart.

Side by side comparison

Factor

Eye strain headache

Migraine

Pain location

Around or behind both eyes, forehead, temples

Often one side of the head; can be behind one eye

Pain type

Dull, aching, pressure

Throbbing, pulsing, often severe

Onset

Gradual — builds during screen use

Can be sudden; often preceded by warning signs

Duration

30 min to a few hours after rest

4–72 hours, often doesn't resolve with rest

Nausea / vomiting

Rare

Common

Visual symptoms

Blurring, tired eyes, dryness

Aura: zigzag lines, blind spots, flashing lights

Light sensitivity

Mild — screens feel uncomfortable

Severe — any light is painful

Worsened by movement

Yes — often much worse with physical activity

Relieved by

Rest, eye drops, stepping away from screens

Darkness, sleep, prescription medication

The key differences in plain terms

Eye strain headaches are dull, bilateral (both sides), and directly tied to screen use — they build gradually during a screen session and ease relatively quickly with rest. They don't stop you functioning; they're uncomfortable rather than debilitating.

Migraines are typically one-sided, throbbing, and severe enough to interfere significantly with normal activity. They often come with nausea, vomiting, and extreme sensitivity to light and sound. They don't resolve with a short rest and frequently require sleep or medication to clear.

The clearest test: If stepping away from screens and resting your eyes for 30–60 minutes clears the headache, it's almost certainly eye strain. If the pain persists, intensifies, or is accompanied by nausea and severe light sensitivity, it's more likely a migraine.

Can screens trigger migraines?

Yes — for people who are already prone to migraines, screens can be a trigger. Screen flicker, bright light, high contrast, and sustained visual effort are all known migraine triggers. This is different from screens causing migraines in people who don't already have the condition. If you frequently get migraines after screen use, this is worth discussing with a GP or neurologist, as there are both preventive and acute treatments that can help significantly.

What is a visual migraine (ocular migraine)?

Some people experience migraine aura — visual disturbances like zigzag patterns, flickering lights, or temporary blind spots — without the headache. This is called an ocular or visual migraine and can be alarming if you haven't experienced it before. It typically lasts 20–30 minutes and resolves on its own. It's not dangerous in most cases, but if you experience it for the first time, see a doctor to rule out other causes.

How to treat each

Eye strain headache:

✓Step away from all screens (including your phone)

✓Rest your eyes in a quiet, moderately lit space

✓Use lubricating eye drops if dryness is contributing

✓Blink fully and deliberately several times to restore tear film

✓Address the cause: screen distance, lighting, break frequency, blink rate

Migraine:

✓Rest in a dark, quiet room

✓Sleep if possible

✓Over-the-counter pain relief (ibuprofen or aspirin) taken early in the attack

✓Prescription triptans if recommended by a doctor

✓Cold or warm compress on the head or neck

✓See a GP if migraines are frequent — preventive treatments exist

When to see a doctor

See a GP or optician if: headaches after screen use are frequent and not improving with habit changes; you experience visual disturbances (aura) for the first time; pain is severe or one-sided; or symptoms include nausea, vomiting, or extreme light sensitivity. Don't self-diagnose recurring head pain as eye strain — it's worth ruling out other causes.