3 ms·
Trivex markets their material aggressively, but it's debatable if it's actually best, especially if you don't need a very thick lens. The traditional CR-39 resi
by mrob 9y ago
Trivex markets their material aggressively, but it's debatable if it's actually best, especially if you don't need a very thick lens. The traditional CR-39 resin has noticeably better chromatic aberration performance (higher Abbe number).
- walterbell 9y agoIt’s difficult to find small frames that work with CR-39 and higher prescriptions. Best ones are based on “vintage” styles from the days of glass lenses, when small lens widths kept the weight down.
- chakalakasp 9y agoPersonally what I like about it is that it has impact resistance; they're not quite safety glasses (unless you get really big glasses), but they're pretty close.