Quick Answer: Video calls hold your gaze at a fixed near distance on a face-sized target for the whole meeting, suppress your blink rate more than reading does, and add a constant self-monitoring load from seeing your own image. Fixed focus plus reduced blinking plus sustained social attention is a harder visual and cognitive task than reading a document you scroll through. Turn off self-view, look away deliberately every few minutes, and put the camera at eye height. The meeting is not the problem; the staring is.

Documents let your eyes move.

A video call asks them to stop.

Why is a face on a screen harder than text?

Because faces hold your gaze and text lets it wander.

Reading involves constant eye movement. Your eyes make several saccades per second across a line of text, and these movements involve changing focus and vergence slightly and continuously. Movement is rest, in visual terms - the focusing muscle is not held in one sustained contraction.

A video call fixes your gaze on one small area. You look at a face-sized region of the screen for minutes at a time, holding the ciliary muscle in a sustained near-focus contraction. Sustained contraction is more fatiguing than repeated brief contraction.

Faces command attention in a way text does not. Human visual attention is strongly drawn to faces and especially eyes, and this is largely involuntary. You cannot let your gaze drift off a face as easily as off a paragraph.

Blink rate falls further on video calls than on other screen tasks. The normal blink rate of roughly 15 to 20 per minute can drop by half or more during focused screen work, and the social attention of a call suppresses it further. Fewer blinks means a less stable tear film and dry, gritty, aching eyes.

And you are usually watching several faces in a grid. A gallery view asks you to monitor multiple faces simultaneously, which is a genuinely unusual visual and cognitive task with no real-world equivalent.

Together: fixed focus, suppressed blinking, and high attentional load on a compelling stimulus. Documents do none of these three.

What is self-view doing to you?

Adding a continuous self-evaluation task on top of everything else.

Seeing yourself constantly is not a normal condition. No other form of conversation includes a live mirror, and research into video conferencing fatigue has identified self-view as a significant contributor.

It creates continuous self-monitoring. You check your expression, your posture, your background, largely without deciding to, and that monitoring runs alongside the actual conversation. It is cognitive load with no benefit.

It also splits your gaze. Your eyes flick between the speaker and your own image, which adds movement without adding rest - because both targets are at the same near distance.

Turning it off is the single most effective change available. Most platforms have a hide self-view option that leaves your camera on for others while removing your own image from your screen. People consistently report meetings feeling less draining within a day of doing this.

The concern that you will look wrong is largely unfounded. You did not monitor your face during in-person meetings and it was fine. Check once at the start, then hide it.

And if your platform lacks the option, a sticky note over that corner of the screen works. Inelegant and completely effective.

How should the desk be set up for calls specifically?

Five adjustments, mostly about distance and height.

Put the camera and the faces at eye height. A laptop on a desk puts the screen well below eye level, which means you look down for hours - a neck problem and an eye problem, since a downward gaze exposes more of the eye surface and increases tear evaporation. Raise the laptop and use a separate keyboard.

Increase the viewing distance. An arm’s length or slightly more reduces the focusing demand compared with the 45 to 50 centimetres many people use. Then increase the text and video size to compensate.

Make the faces smaller, not bigger. A large face fills your visual field and holds your gaze harder. Speaker view at a moderate size is less demanding than a full-screen face.

Get light on your face from the front, not behind. A window behind you forces the camera to expose for the bright background, and forces your eyes to work against glare. Facing a window is better for both the image and your eyes.

Reduce screen brightness to match the room. A screen much brighter than its surroundings increases strain, and most people run their displays far brighter than necessary in a well-lit room. Warmer colour temperature in the evening helps comfort, though the blue light claims around it are weaker than commonly stated.

And in autumn, watch the changing daylight. A setup that was well lit at 4pm in August has a dark window and a bright screen at 4pm in October. Screen brightness needs to come down as the room gets darker, and most people never adjust it.

5 Mistakes Everyone Makes on Back-to-Back Calls

1. Taking the break on another screen. Checking your phone between calls gives your eyes no change of focal distance at all - it is the same near work with a smaller target. The break has to be at a different distance to count.

2. Scheduling calls edge to edge. A 50-minute meeting instead of 60 gives you a genuine visual break and is the single most effective structural fix. Many organisations have adopted this specifically for the fatigue reason.

3. Leaving self-view on all day. Hours of live self-monitoring for no benefit whatsoever. Hide it.

4. Sitting closer as the day goes on. People creep toward the screen as they get tired, which increases the focusing demand exactly when the focusing system is most fatigued. Reset your distance every hour.

5. Blaming blue light. The evidence that blue light from screens causes eye strain is weak, while the evidence that reduced blinking and sustained near focus cause it is strong. Blue light glasses do not address the actual mechanism - deliberate blinking and distance changes do.

And the one nobody thinks about: heating and air conditioning. Forced air blowing across your face dramatically increases tear evaporation, and autumn is when heating comes back on. A vent pointed at your desk can cause more dry eye than the screen does.

FAQ: Video Call Eye Strain Questions, Answered

Does the 20-20-20 rule help for calls?

Partially. Looking at something 20 feet away for 20 seconds every 20 minutes relaxes the focusing muscle, which addresses one of the three mechanisms. It does nothing for blink rate or attention load - so pair it with deliberate blinking and self-view off.

Should I use artificial tears?

Preservative-free lubricating drops are a reasonable option for dryness from reduced blinking, and many eye care professionals suggest them for heavy screen users. If dryness is persistent or your vision is affected, see an optometrist rather than self-managing indefinitely. This is general information, not medical advice.

Is audio-only actually better?

For your eyes, unambiguously yes - it removes the fixed gaze, the self-view, and the face monitoring all at once. A walking phone call is the single most restorative meeting format for both eyes and posture, and it is available more often than people use it.

TL;DR:

• Video calls fix your gaze at one near distance on a compelling target while reading lets your eyes move constantly.
• Blink rate drops further on calls than on other screen work, causing dryness and ache.
• Self-view adds continuous self-monitoring - hiding it is the single highest-value change.
• Camera at eye height, arm’s length or more, smaller faces, front lighting, brightness matched to the room.
• Break at a different focal distance - your phone does not count, and a walking audio call is the best format there is.

Hide your self-view before your next meeting. One click, and you will notice the difference by the end of the day.