I have been using Blublockers in aviation and at daily outdoor meetings for over 30 (1986) years. Blublockers are durable and hold up well, but can get scratched if dropped from a shirt pocket. that they fit well over standard glasses or glasses, making them easy to put on and take off. Blueblockers do not put any noticeable strain on the wearer's nose. Finally, blueblockers help in hazy, foggy and poor visibility conditions, and especially when piloting an airplane. Vehicles, their blue LED…