FL-41 is a generic tint that has been proven to help with conditions associated with light sensitivity.  We are the original retailer of therapeutic FL-41 tinted lenses online.  Our proprietary Spectrashield FL-41 tint looks distinctly different than the generic version.  Our blend has been fine-tuned over 20 years.

It successfully blocks the distressing portion of the light spectrum, which bothers light sensitive people and causes cumulative eye damage over a lifetime.  To accommodate as many people as possible, we also offer some variant lenses.  Our outdoor version of the tint has the greatest filtration power.  We are the exclusive manufacturer of FL-41 tinted transitions and 365-day Soft Contact Lenses.  All of our lenses block UVA and UVB light.  For complete protection against reflected UV light, add our Premium Multipurpose Coating.