Cohen's Fashion Optical – Eye Care & Eyewear New Jersey

Can Dry Eyes Cause Headaches?

Dr. Yekaterina Shteyn
October 22, 2026
5 minutes read
Woman with a headache resting her eyes after screen work

Yes, though the connection is more interesting than most explanations suggest.

There are three separate mechanisms at work, and they're not the same thing. One is straightforward muscle strain. One is light sensitivity. And the third is a shared nerve pathway that links dry eye to migraine in a way researchers are still working out.

Which of those applies to you changes what helps.

The three ways they connect

You're straining to see through it

The simplest mechanism, and the most common.

When your tear film is unstable, vision softens between blinks. You compensate without noticing squinting, furrowing your brow, leaning towards the screen, holding your focus harder than you should have to.

Do that for six hours and the muscles around your eyes and forehead have been working the whole time. The result is a dull ache across the brows and temples that builds through the afternoon.

This is tension-type headache, driven by effort rather than by the eye itself.

Light has become harder to tolerate

A dry, irritated corneal surface is more sensitive to light. Bright environments, screens, oncoming headlights all become uncomfortable rather than just bright.

Photophobia is exhausting in its own right, and it produces headaches directly. It also feeds the first mechanism, because squinting against light is more straining.

The nerve pathway they share

This is where it gets genuinely interesting, and it's the part most articles miss.

Dry eye and migraine turn up together far more often than chance would predict. A large population-based study in JAMA Ophthalmology examined that association specifically, and the overlap is well documented.

The leading explanation is that both conditions run on the same nerve. Dry eye symptoms come from the sensory trigeminal neurons in your cornea. Migraine involves activation of the trigeminovascular network. Both involve abnormal peripheral trigeminal activation followed by peripheral and central sensitisation the nervous system becoming progressively more responsive to signals it would normally ignore.

CGRP, the neuropeptide that's become the target of the newer migraine drugs, shows up in both. It's also directly linked to light sensitivity.

Photophobia is the symptom that bridges them. In the MAST study of over 6,000 migraine patients, nearly half named light sensitivity as their most irritating symptom.

What that means practically: if you have both, treating the dry eye may reduce your headache burden even though it isn't a migraine treatment. For some people it makes a real difference. It's worth trying before assuming the two problems are unrelated.

What an eye-related headache feels like

The pattern is fairly recognizable.

It sits around the brows, the temples, or behind the eyes rather than at the back of the head.

It builds through the day rather than arriving suddenly, and it's usually worse after sustained near work.

It improves when you stop a walk outside, twenty minutes away from the screen, a night's sleep.

It travels with the other dry eye symptoms: grittiness, burning, fluctuating vision, watering.

And it responds to treating the eyes, which is the useful diagnostic. If your headaches ease as the dryness settles, you've found your answer.

Can dry eyes cause headaches and dizziness?

Headaches, yes. Dizziness, no and this is worth being clear about.

Dizziness isn't a dry eye symptom. The tear film has nothing to do with balance. If you're getting both, something else is producing the dizziness and it needs identifying separately.

A few things commonly behind that combination:

Vestibular migraine, which produces dizziness and headache together and often includes visual symptoms. Common, under-diagnosed, and manageable once identified.

Binocular vision problems, where the eyes struggle to work together. This can cause headaches, and some people report a sense of unsteadiness with it, particularly in visually busy environments like supermarkets.

Inner ear conditions, which have nothing to do with the eyes at all.

Medication side effects, blood pressure changes, and low blood sugar.

And occasionally something neurological, which is why persistent dizziness with headache belongs in front of a doctor rather than being attributed to screens.

So get the dry eye treated by all means. Just don't file the dizziness under the same heading and stop looking.

Headaches that need attention now

Most headaches are benign. A few aren't, and the eye-related ones are worth knowing.

Severe eye pain with headache, nausea, and haloes around lights can mean acute angle-closure glaucoma. That's an emergency measured in hours.

Sudden severe headache, the worst you've experienced, needs emergency assessment.

New headache over the age of fifty with scalp tenderness, jaw ache when chewing, or vision changes suggests giant cell arteritis, which can take sight permanently if untreated.

Headache with actual vision loss, double vision, or a drooping eyelid.

Headache that's worse on waking or when lying down, especially with vomiting.

Any headache alongside weakness, numbness, slurred speech or confusion means 911.

None of that is common. All of it is worth recognizing.

The other eye causes worth ruling out

If it turns out your dryness is mild and the headaches are significant, there are two other eye-related causes that get missed.

Uncorrected or outdated prescription. Particularly small amounts of long-sightedness or astigmatism, which the eye can compensate for at the cost of constant focusing effort. Classic cause of end-of-day headaches in people who've been told their vision is fine.

Convergence insufficiency. Where the eyes struggle to turn inward together for close work. Causes headaches, eyestrain and sometimes intermittent double vision, specifically with reading.

Both are straightforward to test for and both are treatable. Neither shows up on a basic vision screening.

What we look at

The examination covers more than the surface.

We measure how long your tear film holds together before breaking up, which is the direct measure of the dryness. We stain the surface to see where it's damaged. We check the meibomian glands in your lids to see what they're producing.

Then the other side of it: a full refraction to rule out an uncorrected prescription, and testing of how your eyes work together at near.

That combination usually identifies the cause in one visit, and frequently it's more than one thing contributing.

What actually helps

For the dryness itself: preservative-free artificial tears, warm compresses where the oil glands are involved, lid hygiene, and prescription treatment for the inflammatory cycle. For meibomian gland dysfunction, intense pulsed light we use OptiLight at both offices treats the gland function rather than the symptom.

For the strain: blink deliberately and completely when you work, since screen blinking is mostly partial. Lower your monitor so you're looking slightly downward. Take actual breaks rather than switching to your phone.

For the light sensitivity: reduce glare rather than reducing brightness overall. Position screens away from windows, and consider a tint if you're outdoors or under fluorescent lighting a lot.

And if migraine is in the picture, tell whoever manages that you're being treated for dry eye. The two are related closely enough that it's worth both parties knowing.

Jersey City is on 201-420-7733. Florham Park on 973-994-1444.

FAQ

Can dry eyes cause headache every day?

They can contribute to daily headaches, particularly in people doing sustained screen work. Daily headache is worth investigating properly rather than assuming a single cause, since more than one factor is usually involved.

Will treating dry eye stop my migraines?

It won't cure migraine. Given the shared nerve pathway, some people find their migraine burden drops when the ocular surface improves. Worth trying, not worth counting on.

Why do my headaches get worse on screens?

Because you blink about half as often when concentrating, which destabilises the tear film, which makes you strain. The screen itself isn't damaging your eyes the blink rate is doing the work.

Can dry eye cause headaches behind the eyes specifically?

That location is common with eye-related headache, though it isn't diagnostic on its own. Sinus problems and migraine both produce pain in the same place.

Do blue light glasses help?

The evidence for blue light filtering reducing eye strain is weak. If they help, it's usually because people wearing them take more breaks. Addressing the dryness directly does more.

Get the tear film checked

So, can dry eyes cause headaches? Through strain, through light sensitivity, and through a nerve pathway shared with migraine yes, in three different ways.

The practical step is having the tear film and the prescription both assessed, because the two most common causes of end-of-day headaches are dryness and an uncorrected refractive error, and plenty of people have both.

If dizziness is part of your picture, mention that too. It won't be coming from your tear film, but it's worth someone joining the dots.

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