Best red lens · Blue light glasses

Bon Charge Morris Blue Light Blocking Glasses

by Bon Charge

Red-orange sleep lens in an acetate frame. Bon Charge's own curve shows no transmission below about 555 nm. Prescription, multifocal and readers offered.

Specs

Lens tintRed-orange
Published blocking100% 400 to 550 nm (maker curve)
Melanopic cut (independent lab)Not tested
Over glassesClip-on version sold
PrescriptionYes, single or multifocal
Peak transmissionAbout 58% at 620 to 700 nm (maker curve)
FrameAcetate
Prescription price$270
Readers+0.25 to +4.00, $210
Warranty1 year

Specs from the manufacturer and the sources listed below. Last verified Oct 20, 2026.

Good

  • Maker's curve shows no transmission below about 555 nm, deeper into green than amber lenses
  • Prescription lenses in single vision or multifocal, plus readers from +0.25 to +4.00
  • The same lens comes in more than 20 adult frame styles
  • 1-year warranty and unlimited exchanges for fit

Not so good

  • No independent measurement published; all transmission data comes from Bon Charge
  • Darker and redder than amber, which makes reading and moving around dim rooms harder
  • Product page promises better sleep 'after just one use', which the trials don't show
  • Front-only frame lets side light in

Bon Charge is the brand formerly sold as BLUblox (blublox.com now redirects to boncharge.com), and it makes one of the deepest-cutting lenses here. Its published transmission graph for the sleep lens shows no measurable light below about 555 nm, rising to roughly 58% between 620 and 700 nm. That is more green blocking than the amber Sleep Swannies lens, which passes about 10% at 530 nm and 40% at 550 nm in its lab report.

The caveat is that the curve comes from Bon Charge itself. No independent measurement of its lenses has been published, and they were not in the 2025 analysis of 26 commercial glasses. In a 2022 test of 50 lenses, red tints as a group passed the least circadian-active light, but that study doesn’t tell you where this specific lens sits.

The deeper cut costs visibility. Expect a darker, redder view than amber, which makes reading print and moving around a dim house harder. Don’t drive in them.

Options are where Bon Charge stands out. The same lens comes in more than 20 adult frame styles; the Morris costs $129.99. Prescription lenses cost $270 in single vision or multifocal, and readers from +0.25 to +4.00 cost $210. A clip-on version costs $69.99. Bon Charge gives a one-year warranty and unlimited exchanges for fit.

Ignore the product page’s promise that you’ll notice a difference “after just one use”. The trials that found benefits ran for one to two weeks.

Sources

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