NSL Analytical offers prescription eyeglass and sunglass and frame manufacturers an alternative scientific testing resource. NSL is a member of The Vision Council and our ophthalmic evaluations and testing services conform to industry standards.

Our ophthalmic testing services build on our greatest strengths - knowledge of materials and analytical expertise. We can provide lens and frame manufacturers with the facts on your materials and the confidence of knowing your products meet your strict quality standards.

Lens Testing:

• Abrasion
• Coatings
• Cross Hatch Adhesion
• Accelerated Exposure
• Optical Properties
• Everyday Wear
• Strength

Frame and Accessories Testing:

• Chemical resistance
• Horizontal stress
• Vertical stress
• Lead testing
• ANSI tests
• ISO tests
• Temple Bending