Lens Materials

One of the most important decisions you will make when setting up a prescription safety eyewear program is the choice of lens material. Safety lens choices have increased over the past few years and are offered in several materials: Trivex, Polycarbonate, CR-39 Plastic, and High Index Plastic.

Shannon Optical strongly recommends the use of Trivex or Polycarbonate Lens Material.

Trivex:

Trivex vs. other lenses: Trivex withstands the impact from a 1/4” diameter steel ball traveling at over 100 mph
Trivex withstands the impact from a 1/4” diameter steel ball traveling at over 100 mph

Polycarbonate:

Polycarbonate lenses are thinner and lighter than regular plastic lenses.

Trivex versus Polycarbonate: Lens comparison as viewed through an illuminated polarized filter
Lens comparison as viewed through an illuminated polarized filter

CR-39 Plastic:

C-39

High Index: 

hoya vision optimized processes

Why Shannon Optical?

For over 60 years, Shannon Optical has provided prescription safety eyewear programs to industry workers nationwide. We work directly with your business to create personalized programs to outfit your workers for the maximum in design, fit, and safety.

Our goals? To provide you with a premium safety glass program, to ease your administrative Compliance burdens, and to guarantee your complete satisfaction – all while fitting into your company’s budget.

Our customer base spans the entire United States. No matter the size and location of your business or its eyeglass needs, our wide range of products and services can meet them all!