I’ve had a pair of Randolph Engineering aviators for the last 20 years, expensive, but good quality ‘glasses.
Quoted from their website regarding the lenses: “All of our lenses absorb 98-100% of harmful ultraviolet rays and allow a range of 12-18% of visible light to pass through; the ideal comfort level for most wearers. Our mineral glass lenses are exceptionally scratch-resistant, and will provide you with absolute distortion-free clarity. They’re also precision ground and chemically tempered for impact resistance that exceeds ANSI Z-803 standards”.