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Computer Glasses vs. Blue Light Glasses: What's the Difference?

They get used as synonyms, but 'computer glasses' and 'blue light glasses' are not always the same product.

Two Overlapping but Different Ideas

"Blue light glasses" specifically refers to lenses with a coating or filter that reduces blue light transmission, addressed in detail in our blue light guide.

"Computer glasses" is a broader, less standardized term. It can refer to blue light lenses, but it more precisely describes lenses with a prescription optimized for intermediate distance -- roughly arm's length, the distance to a monitor -- rather than the far distance a standard prescription is built around.

Blue Light Glasses

Any prescription, with a filter added to reduce blue light from screens.

True Computer Glasses

A prescription specifically calibrated for monitor distance (usually 20-26 inches).

Often Combined

Many computer glasses include both an intermediate-distance prescription and a blue light filter.

Who Actually Needs Distance-Specific Computer Glasses?

If you already wear progressive lenses, you may notice you have to tilt your head back to find the intermediate zone for your monitor, which causes neck strain over a full workday. A separate pair of computer glasses, or an 'office lens' progressive with a wider intermediate zone, can solve this.

If you wear single vision distance glasses and work on a screen all day, standard glasses already correct that distance reasonably well for most people, and a blue light filter addition is usually sufficient without needing a separate prescription.

Not sure which applies to you? If your neck hurts by the end of a workday and you wear progressives, ask about a dedicated computer/office lens. If you just want screen comfort with your existing prescription, a blue light filter add-on is the simpler option.
Frequently Asked Questions
Do I need a separate prescription for computer glasses? +
Only if you have presbyopia and wear progressives, or if you spend the vast majority of your day at a fixed screen distance and want to optimize for it specifically. Otherwise your regular prescription with a blue light filter is usually enough.
Can I just add a blue light filter to my existing glasses? +
Yes, through Shade Gray's lens replacement service, which can add a blue light filter to prescription or non-prescription lenses in frames you already own.
Do computer glasses help with dry eyes from screens? +
Indirectly. Reduced blinking during screen use, not the light itself, is usually the bigger factor in screen-related dry eye. Taking regular breaks helps more than any lens choice.
Is there a difference in cost between the two? +
Blue light filtering is a relatively low-cost add-on. A dedicated intermediate-distance prescription lens is priced similarly to any other prescription lens.
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Built for your screen time

Whether you need a blue light filter or a dedicated computer lens, Shade Gray has you covered starting at $49.