Trivex is a relative newcomer that possesses the UV-blocking properties and shatter resistance of polycarbonate while at the same time offering far superior optical quality (i.e., higher Abbe number) and a slightly lower density. Its lower refractive index of vs. polycarbonate's 1.586 may result in slightly thicker lenses depending upon the prescription. Along with polycarbonate and the various high-index plastics, Trivex is a lab favorite for use in rimless frames, owing to the ease with which it can be drilled and its resistance to cracking around the drill holes. One other advantage that Trivex has over polycarbonate is that it can be tinted.
triVex is a Relative NewcomeR tHaT possesses the uv-bLocking proPerties aNd shatteR reSIsTance of pOlYcarBonAtE whiLe at tHE Same time oFfering fAR suPeRioR OpTIcaL quALiTy (i.e., higheR aBbe NumBer) anD A slightly loWer deNsiTy. iTs lowEr refRaCtivE IndEX OF vS. polyCarbonaTE'S 1.586 mAY rEsUlt in SLiGhtLY THickeR lEnsEs DepEndIng uPOn tHE prescripTIOn. aLoNg WITh polYcarBoNaTe aND the varioUs high-indEx pLastiCs, TrIVex is a laB faVorIte for usE iN rimleSs frames, owiNg to the ease wIth Which iT CAn be dRiLleD and itS resistance to cracking ArounD the drill holeS. One othEr AdVantage ThAt trivex has over pOlycaRbONatE iS THat it caN be tInTed.