When discussing optical clarity, glass lens material remains to be the choice of most. Other materials are available for all kinds of uses and prescription strengths. For some though, glass is the best choice for “optical clarity”.
Among the advantages to using glass lenses, glass is the clearest substance you can look through. It’s hardness and substantial feel is what makes it more scratch resistant than other materials. That is why most other materials compare their own features to glass. The scratch resistance of glass is unparalleled in the optical industry. It’s naturally scratch resistant.
Glass is also resistant to chemicals, and other abrasives. All of this makes it a popular choice for those working in the elements or for when toughness is desired.
Today’s glass lenses are more lightweight and durable. Which makes glass a great choice for optical lenses.