Abstract
Novel anti-reflective structurally colored contact lenses not only block UV- and blue-light but also avoid the risk of chemical dyes.
Highlights
White light-emitting diodes (WLEDs) in solid-state devices have been widely applied for the backlight modules of digital screens, such as TVs, LCDs, tablets, and mobile phones.[1,2] Commercially available WLEDs generally use blue LEDs to excite yellow phosphor.[3]
WLEDs contain high-energy blue light, which is responsible for the blue-light hazard (BLH) problem
The obtained antire ective (AR) contact lenses blocked UV and blue light, transmitted over 90% of visible light, and had a bluish structural color without using chemical dye, which prevented the potential harm from dye leakage posed by commercial colored contact lenses
Summary
As well as for fashion and beauty purposes. developing colored contact lenses with UV and blue-light antire ective (AR) properties is extremely important. We propose novel structurally colored contact lenses with UV and blue-light AR properties using amorphous array (AA) nanostructures. Generation of a colloidal nanosphere suspension is a facile approach to prepare structurally colored materials with periodic or AA nanostructures.[9,10,11,12,13] Structural color can be used as an optimal method for fabricating colored contact lenses compared with commercial colored contact lenses because of the bright color and absence of chemical dye in the former. The AR property towards blue light of structurally colored contact lenses has substantial potential for commercial contact lenses, which use chemical dyes to absorb blue light (Fig. S1 and Table S1†)
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