How To Select The Right Lens Material For Men's Sunglasses

How To Select The Right Lens Material For Men's Sunglasses   

·         Lenses come in a variety of shapes based on the frame of the sunglasses. Square, round, rectangular and oval-shaped lenses are common. The lenses on teardrop aviators and wrap-around sunglasses for sport have a non-distinctive shape.

Lenses are typically made of:

• Optical Glass – Optical Glass Lenses provide distortion-free vision. Optical glass is scratch resistant and extremely durable. They tend to be more expensive but the downside of glass is it spiders on impact.
• Plastic Lenses – Lighter and more shatter-resistant than glass. A plastic lens is thicker and bulkier and requires an extra coating for scratch proof and UV protection.
• Polycarbonate – Polycarbonate is lightweight with a high level of optical clarity. It is up to 50 times more impact resistant than optical glass. The disadvantage is a lower level of scratch resistance.
• SR-91 Lens – Offers 100% broad-spectrum UV protection and combines the superior optical quality of optical glass with the lightweight strength of polycarbonate. It has waterproof, scratch-resistant and anti-glare properties