Headache Behind the Eyes: Causes and Fixes

A dull ache or pressure that sits specifically behind or around the eyes is almost always caused by visual muscle fatigue. It builds through the day and almost always worsens during or after screen work.

How to tell it's screen-related

Screen-related eye strain headaches have a reasonably distinct profile. They build gradually across a screen session rather than arriving suddenly. The pain is dull and pressure-like rather than throbbing. It sits at or behind the eye sockets, not at the back of the head or on one side. And it improves significantly after an hour away from screens.

If it's throbbing, one-sided, accompanied by nausea or light sensitivity, or arrived suddenly, it's worth considering migraine rather than eye strain. The two can overlap but have different causes and different treatments.

Why it happens

Ciliary muscle fatigue

The muscle that controls lens focus has been held in a contracted state for hours. This generates referred pain experienced as pressure behind or around the eye socket. It's the primary driver of screen-related eye headaches and is almost entirely preventable with regular distance breaks.

Extraocular muscle strain

Six muscles control each eye's movement. They're tracking text and holding convergence all day. Poor screen positioning — off to one side, too high, too close — forces these muscles to compensate constantly. Over hours, this accumulates into real discomfort.

Squinting

If your screen is too bright, there's glare, or your prescription isn't quite right, you'll squint without registering that you're doing it. Sustained squinting involves the muscles around the eyes and forehead. Over a full working day, that low-level contraction builds into genuine pain.

Brow and forehead tension

When straining to see clearly or adjusting to poor lighting, many people raise their eyebrows or furrow their brow slightly. Like squinting, this is mostly unconscious. The cumulative muscle tension by the end of the day shows up as a dull headache across the forehead and brow area.

What actually helps

Most screen headaches are addressable with a few targeted changes:

Take distance breaks. Look at something at least 6 metres away for 20 seconds every 20 minutes. This fully relaxes the ciliary muscle instead of letting fatigue compound across the day.

Fix your screen position. Monitor directly in front of you, at arm's length (50–70cm), top of screen at or just below eye level. Most people's screens are too close, too high, or off to one side.

Get an eye test. An outdated or wrong prescription is one of the most effective headache drivers there is, and most people don't connect the two. If you haven't had a test in two years, book one.

Reduce glare. Move the screen so windows are to your side, not behind you. Match screen brightness to the room — a bright screen in a dark room is a squinting driver all day long.

When to see a doctor

Eye strain headaches improve predictably with rest and the fixes above. If the headache is severe, doesn't respond to rest, is worst in the morning, comes with vision changes, nausea, or is increasing in frequency over time, see a doctor. These features suggest something other than screen-related eye strain.