A clean windshield improves night time riding by way of chopping halos and glare from oncoming headlights and streetlights.
https://aged-wiki.win/index.php/Understanding_the_Costs_Involved_in_Different_Types_of_Windscreen_Repairs_74427
A refreshing windshield improves evening driving by using cutting halos and glare from oncoming headlights and streetlights.