How Far Should Your Monitor Be From Your Eyes? An Optometrist's Guide

Affiliate Disclosure: Desk Wellness Lab is reader-supported. Links in this article may be affiliate links — if you purchase through them, we earn a small commission at no extra cost to you. This never affects our recommendations. See our full Affiliate Disclosure.

Pricing Note: Prices shown are approximate and may change. Always check the retailer for current pricing. Last verified: April 2026.

“Arm’s length” is the advice you’ll find everywhere. It’s a fine starting point, but it’s also annoyingly vague — your arm and mine are probably different lengths, and a 24-inch monitor and a 34-inch ultrawide have very different optimal viewing distances.

How Your Desk Setup Is Affecting Your Eyes (From an Optometrist Who Sees It Every Day)

I’m an optometrist. Five days a week, patients sit in my exam chair and tell me the same story: “My eyes feel tired by 3 PM.” “I get headaches in the afternoon.” “Everything gets blurry after staring at my screen for a few hours.” “My eyes feel dry and gritty.”

And almost every time, before I even check their prescription, I ask: “Describe your desk setup.”

The answer tells me more than they expect.