Article Explains Polarized and Notch Filter Lenses for Glare and Spectral Contrast Control

Mathew Musladin, ABOM, authored an article in 20/20 Magazine detailing how polarized and notch filter lenses address two specific sources of visual disruption: glare and spectral contrast. The text defines glare as discomfort or reduced vision caused by unsuitable illuminance distribution or extreme contrast, categorizing it into four types: discomfort, disability, blinding, and veiling. It explains that polarization controls glare resulting from direct reflection, while notch filtration manages spectral contrast issues related to color perception. The author notes that reflected light can amplify luminance seven to ten times the original level. This discussion is explicitly constrained to these two forms of incident light on sunwear, excluding other biological or spectacle aberrations.