Do these glasses block all blue light?

No. They use a light-tint lens meant for daytime screen use, so they filter part of the blue light while keeping colors fairly natural. For strong evening blocking, BlockBlueLight sells darker-lens models.

Can I wear them all day at the office?

Yes, that is the intended use. The light tint is designed to be worn during work hours without making the screen look orange.

Will they fit my face?

The frame is 138 mm wide with 50 mm high lenses. That suits most average to larger faces; very narrow faces may find it loose, and there are no adjustable nose pads.

Are the lenses prescription?

They ship as non-prescription lenses. The acetate frame can be taken to an optician for prescription lenses if needed.

The glasses come with the Lucent acetate frame and its lenses. A case or cloth may be included depending on the listing, so check the box contents before ordering.

How do they compare with cheaper blue light glasses?

The acetate frame and larger lens give a more substantial feel than thin budget frames. Whether that matters depends on how long you wear them and how much you care about build.