Trivex Vs Cr 39

[newline]Always seek the advice of one’s physician or other qualified health care provider. Polycarbonate lenses , will be the most common lens type and considered the standard. If you don’t know very well what type of lenses you have, they’re probably polycarbonate. Our example prescriptions are -3 and +2 for the average range and -6 and +5 for the strong range. We selected this frame because not only is it an excellent look, it includes a fairly large lens and a square lens shape.

The liquid polycarbonate is then rapidly injected into lens molds, compressed under high pressure, and cooled to create a finished lens product in a matter of minutes. For anyone who is very active and sometimes outdoors, Trivex might be a good choice for you. Should you be more of a typical glasses wearer, you can probably simply use polycarbonate lenses.

Aspheric Lenses For Better Vision And Appearance

In the United States, most high index lenses are made from the many plastic materials. Various other countries still use a large amount of glass material for high index lenses.

Polycarbonate lenses are about 10% thinner than Trivex lenses. Lenses created from Trivex are extremely resistant to common problems like being dropped or scratched. Also, they are very resistant to unusual problems, like several chemicals. They are able to resist acetone, which few plastics can resist, including polycarbonate.

Recommended Products

But yes Trivex is a bit more expensive than CR39 but in my experience better. If your lenses last 24 months, lenses aren’t where you should save money.

• Remember that the OC rarely results in the “geometric center” of the lens, or everything you can also think about because the true center point, as shown in the graphic below.
• To greatly help clean your glasses effectively, we offer POWERFUL lens care & cleaning supplies.
• The answer to this question is one we provide a lot—it depends.

coping with a stronger Rx, lens material makes a huge difference. Another important factor in prescription lenses may be the OC, or ocular center.

Weight

This is important because it provides consistent optical clarity in the lens periphery, not just the center. It also allows for someone with a strong prescription to wear a larger collection of frames without worry of the lenses being too thick. This not only affects the looks of the lens but also reduces the enlarged appearance of eyes (“bug-eyed” look) with high plus power prescriptions that are used for farsightedness. The contrary occurs in high minus power lenses for nearsightedness. In non-aspheric lenses, eyes can appear minified, although the effect is not as dramatic as it is for farsighted people.