Are trivex lenses better than polycarbonate? Which ones look better and give you clearer vision? Do they cos?

Trivex is better than poly. One of the issues with poly is that it has problems with chromatic aberration. Trivex is much better about that. Poly is a soft material that has a hard coating on it . Trivex is much harder. That makes it more resistant to scratches. Trivex is a better choice for rimless frames because poly sometimes cracks around drill holes.