CRYSTAL POLARIZED

Costa offers polarized lenses in two main materials: crystal glass and polycarbonate. Here is a brief description of their respective properties:

Polarized Crystal Glass:

• Optical Clarity:
  • Crystal glass generally offers superior optical clarity. This means that vision through these lenses is particularly sharp and detailed.
• Scratch Resistance:
  • Glass is naturally more scratch-resistant than plastic, which helps the lenses remain free of distracting scratches for longer.
• Weight:
  • Crystal glass is generally heavier than polycarbonate, which can play a role in comfort during extended wear.

Polarized Polycarbonate:

• Impact Resistance:
  • Polycarbonate is a very impact-resistant material that rarely splinters. This makes it ideal for sports activities and situations where the glasses might be subjected to impacts.
• Lightness:
  • Polycarbonate is significantly lighter than glass, which increases comfort, especially during extended wear.
• UV Protection:
  • Polycarbonate naturally offers high UV protection, which is an important factor in sunglasses.
• Application:
  • Due to its shatter resistance, polycarbonate is particularly suitable for very active people.

Commonality:

• Both materials are fitted with a polarizing film by Costa, which effectively reduces glare and enhances contrast.