Eye Expert for Glare Testimony posted in: Driving, Vision Impairment | GPS Unit Warning: Looking away from the road can lead to serious or fatal accident Impaired visibility from glare and light scatter from a soiled windshield. Clear visibility of same scene as previous photo but without glare or light scatter from a dirty windshield. Rear window with dirty portion showing impaired visibility from glare and light scatter. Rear windshield unchanged from previous photo showing improved visibility without the presence of glare or light scatter.