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Get it between 2025-07-29 to 2025-08-05. Additional 3 business days for provincial shipping.
Prevents eye strain and migraines from florescent lighting, blue light, and sunlight.
Free case and microfiber cleaning cloth included.
Ultra Lightweight frames made from durable TR-90.
Fl-41 is the #1 Tint Recommended for Light Sensitivity and Migraines.
Blocks 100% of harmful UVA/UVB rays.
Polarized to prevent outdoor glare.
Ideal for outdoor use.
Description Fl-41 is the tint most commonly recommended by doctors and specialists for the prevention of light sensitivity and migraines. One study found that the use of Fl-41 glasses reduced the number of migraines by an average of 74% in a four month period. Fl-41 glasses are also effective at reducing photophobia and light sensitivity that does not result in migraines, particularly light sensitivity caused by florescent lighting, computer screens, and sunlight. Fl-41 lenses block 80% of the blue wavelengths that can trigger eye pain, dizziness, and headaches. Our outdoor Fl-41 glasses are ideal for full sunlight and are polarized to further reduce glare.