Red is the only color we never try to harmonize because red is not meant to get along. Red should glow, mean and translucent, and then red should leave. Red is best remembered as a hot flash, with spots in your vision and ringing in your ears.
A blue mirror that shifts to a glowing red lens as it moves. Made with a dichroic laboratory lens laminated over a magnifying crystal. Set in a black anodized bezel precision machined out of solid aluminum. Attached with a ribbed magnetic clasp.
A tool for sight.