Figure 1

(A) The tinted glasses produced for the study. The green glasses filter short-wavelength light (SWF glasses). The other pink glasses filter middle-wavelength light (MWF glasses). (B) The spectral sensitivity curves of S-cones, intrinsic photosensitive retinal ganglion cells (iRGCs), and rods. Their sensitivity peaks at 430, 480, and 510 nm, respectively. (C) Spectral transmittance rate of each glasses. SWF glasses relatively restrict a transmission of short-wavelength light between 400 and 450 nm, targeting S-cones. MWF glasses restrict the range around 480–550 nm, targeting rods and ipRGCs.