The quick and easy answer is: Yes. Your favourite shades will filter out blue light from your smart phone, monitor or TV. However, it will not help you much because they block too much of the available light indoors to be comfortable. Sunglasses protect your eyes from UV radiation, including blue light.

How much blue light do sunglasses block?

Clear lenses block a maximum of 40% of blue light; yellow lenses block a maximum of 75% of blue light; and red lenses block up to 100% of blue, green and violet light. Orange lenses block too much blue light during the day and not enough at night.

Should I wear sunglasses while using computer?

Wear sunglasses: When you're not in front of your computer, you can still protect your eyes from incoming light. This helps them endure longer periods in front of the monitor. Wear sunglasses outdoors (or even indoors if necessary). Make sure that the lenses have UV protection.