What are FL Sun TheraSpecs' visible light transmission (VLT)?

FL-Sun™ TheraSpecs are available in two different tint strengths: "Dark+" which filters 90% of light, and "Ultradark+" which filters 96% of light.

These dark, protective lenses are polarized to deflect glare and designed to be worn outside to help shield you against bright sunlight.

Note: FL-Sun Dark+ strength can be worn for driving during the day. Due to its extremely dark lenses, FL-Sun Ultradark+ strength is not suitable for driving any time of day.