Our night lenses are designed to block short-wavelength light—primarily in the blue and green spectrum—to reduce light stress, protect circadian rhythm, and help relax the nervous system. They are a physiological tool to prepare for sleep and promote recovery.

By filtering out wavelengths below 500 nm (especially the 460-480 nm range), the lens helps preserve melatonin production and reduces overstimulation, two crucial factors for falling asleep faster and sleeping more deeply.

Of course. They are designed for nights when we spend a lot of time in front of screens; they filter artificial light from phones, laptops, and televisions to help your brain disengage and your body prepare for rest.

The brain interprets short wavelengths (blue/green) as daylight. These suppress melatonin and cause alertness, keeping the nervous system active when it should be resting.

We use CR-39, a high-fidelity optical resin originally developed for aerospace use. It offers excellent clarity, minimal chromatic distortion, and high scratch resistance, ideal for precision in low-light conditions.

For best results, start using them 1 to 3 hours before your planned bedtime. This aligns with your natural melatonin curve and signals your body to relax biologically, not just mentally.

Ryva lenses reduce neuronal activation at the end of the day by decreasing light input and have been linked to an increase in Late Positive Potential (LPP), a brain wave associated with emotional regulation and nervous system calming.

We don't just block light, we engineer optical tools for sensory alignment. Ryva is built on circadian biology, neurological impact, and material integrity. It delivers lab-grade functionality in a portable format, with aesthetics that fit your system.

We process our orders within 24-48 hours once we receive them. Delivery times vary by destination:

• United States (all US): 3 to 5 business days.
• International countries: 12 to 20 days, depending on the area and region.

Once your order is shipped, you will receive a tracking number so you can monitor your shipment.

Nuestros lentes están diseñados para protección de luz azul. Para información sobre graduación, contáctanos directamente.

Sí, nuestros lentes Ryva están científicamente diseñados para filtrar las longitudes de onda dañinas de la luz azul. Múltiples estudios revisados por pares confirman que los lentes que bloquean la luz azul reducen la fatiga ocular, mejoran la calidad del sueño y disminuyen la tensión visual después de largas jornadas frente a pantallas.

All our Ryva lenses include a 30-day warranty against manufacturing defects. This covers any issues with the lenses, frame, or blue light filtering treatment. If you experience any problems, our premium customer service team is here to help you with replacement or repair.

Ofrecemos una política de devolución sin complicaciones de 30 días. Si no estás completamente satisfecho con tus lentes Ryva, puedes devolverlos en perfecto estado para obtener un reembolso completo o un cambio. Queremos que disfrutes de la experiencia premium de Ryva, y tu satisfacción es nuestra prioridad.