Advances in modern technology have allowed for the development of numerous types of eyeglasses lenses to enhance comfort, durability, efficiency, and cosmetic appeal.
· Polycarbonate lenses are thinner, lighter and up to 10 times more impact-resistant than regular plastic lenses. It is also naturally UV and scratch resistant, eliminating the need to add on extra coatings. It was first used for the visors on astronaut's helmets before being used to make bullet proof glass and, now, eyeglass lenses. Extremely durable, it is the ideal material for eyeglass lenses.
· Aspheric lenses, which have a slimmer, more attractive profile than other lenses. They also eliminate that magnified, “bug-eye” look caused by some prescriptions.
· High index lenses are a durable plastic that enable lenses to be noticeably thinner and lighter than regular plastic lenses. They are more impact resistant that regular plastic lenses but do not have the durability of Polycarbonate.
· Photochromic lenses (also called Transition Lenses) are sun-sensitive lenses that quickly darken in bright conditions, and quickly return to a clear state in ordinary indoor lighting.
· Polarized lenses diminish glare from flat, reflective surfaces (like water) and also reduce eye fatigue.
· Anti-reflective coatings are among the most popular and revolutionary choices for your lenses. They eliminate the reflection of overhead light from your lenses, reducing eyestrain and enhancing your field of vision. They also make your glasses more cosmetically appealing by allowing people to see your eyes clearly, and will eliminate the reflection of camera flash in photos.
· Other lens coatings include scratch-resistant, ultraviolet treatment, and mirror coatings.