Articulated supplement with TF450 therapeutic filter. It filters 450nm wavelengths and is indicated for the following disorders: - Macular degeneration - Night blindness - Pre-cataract surgery - Retinitis Pigmentosa - Albinism - Optic atrophy. The supplement does not have any type of prescription and is to be placed over your prescription glasses. Many people need different therapeutic filters for different light conditions. The comfort obtained with them is high due to the minimization of very bright and high-contrast light shocks.

Block UV light and azul light. It is safe for outdoor and indoor use by day and night. It improves the contrast and the higher luminosity that other threads, even it is not so dark.