What is trivex single vision?
Trivex Single Vision Lenses have superior optics, extra impact resistance and are ultra light weight. Recommended for low to mild prescription.
Are trivex lenses worth it?
Trivex lenses tend to cost more than polycarbonate or standard plastic lenses. But if you want what many eye care professionals consider to be the best combination of safety, comfort, appearance and optical performance for most eyeglass prescriptions, the Trivex price tag may be an investment worth making.
Are trivex lenses clearer?
Trivex is a new material that is a stronger, more resistant, clearer alternative to standard polycarbonate, which is one of the best materials for prescription glasses on the market Not only is Trivex strong and lightweight, it also offers 100 percent protection from UVA and UVB rays, sharper central vision, and …
Are single vision lenses good?
Single vision lenses generally help you see clearer at a single distance. Bifocal lenses are split into two sections to accommodate both near and far visual needs, and are ONLY necessary for people who have both of those needs. Traditionally, single vision lenses cost much less than bifocal lenses.
Who makes Trivex lens?
PPG Industries
PPG Industries adapted the technology for the optical industry. Trivex is a urethane-based pre-polymer. PPG named the material Trivex because of its three main properties which are good optics, light weight, and strength.
What are Trivex lenses made of?
Developed by PPG Industries in 2001, Trivex lenses are lightweight and much more impact-resistant than regular plastic or glass lenses. Trivex lenses are made of a urethane-based monomer. They are produced using a slower, cast molding process similar to how regular plastic lenses are made.
Which is better polycarbonate or Trivex?
Thickness: Polycarbonate lenses have a higher index of refraction than Trivex lenses, but not by much (1.58 vs 1.53). Trivex lenses have a higher Abbe value so they can produce both sharper central and peripheral vision with less chromatic aberration than polycarbonate lenses.
Are Trivex lenses Aspheric?
Polycarbonate, high index and Trivex are wonderful materials for ophthalmic lenses. The confusing part is that they are lens materials whereas aspheric describes a lens design. So, polycarbonate, high index and Trivex are all available in spherical and aspheric designs.
What is an aspheric lens in glasses?
Aspheric lenses improve the cosmetics of a pair of glasses by using surface curves that are flatter centrally and progressively flattened (in plus prescriptions) as one moves from lens center to edge.
Why to prescribe lenses made from Trivex material?
Ultimate performance. Clear vision. For reading, computer work, driving, and any time vision acuity is important, Trivex material provides the optical quality that optimizes corrective prescriptions and helps to reduce eye strain. Lightweight comfort. Trivex material is one of the lightest lens materials on the planet. Thin. Strength and durability.
Is Trivex better than polycarbonate?
The Trivex lens material is lighter than polycarbonate, and also has better visual acuity than polycarbonate, and is also recommended as a safety material similar to polycarbonate. However, there are few choices in Trivex lenses and Trivex is more expensive than polycarbonate lenses.
Is a thicker lens more accurate or a thinner lens?
Generally speaking, thinner lenses are more accurate than thicker ones when it comes to producing an image that most accurately resembles the object being imaged. From a technical standpoint,…
Do flashlights have convex or concave lens?
Curving inward, concave lenses cause light to spread out, resulting in a smaller image for the viewer. Despite being less useful than convex lenses, concave lenses have several uses, including in eyeglasses and contacts, flashlights, peepholes, binoculars, telescopes, and in photography.