Single Vision "Regular Clear" High-Index

Indoors, screens and LED bulbs throw a harsh spike of blue light at 455nm. Hours of it strain your eyes, bring on headaches and drain your focus.

The Day lens balances that spike and keeps the healthy blue-turquoise your brain needs to stay alert. Focus stays sharp and your eyes stay comfortable, all day.

The Day lens balances the harmful spike at 455nm, which causes eye strain and allow the beneficial blue (470–495nm range)  that drives alertness. Colors look natural. Every lens is tested with a spectrometer.

How to use:

1. Indoors: wear them at your desk, under screens and LED lights.
2. Outdoors: take them off. Real sunlight is full-spectrum and good for you.
3. After sunset: switch to your Sunset lenses.

Fast shipping

Non-prescription orders ship within 1–2 business days from our US warehouse. Prescription glasses are made to order and ship in 10–15 business days.

Please allow the following shipping times:

• USA, USPS Ground Advantage: 3–5 business days
• USA, USPS Priority: 1–3 business days
• International, DHL: 7–14 business days

*No import duties or tariffs on non-prescription orders. Prescription orders may have local import duties on delivery.

Returns

We offer a 100-day return policy on all orders. For prescription glasses, everything is refunded except the custom prescription lenses.

Every pair comes with a 2-year warranty on frames and lenses.

In bundles, only the glasses are returnable. The sleep mask and earplugs are not, for hygiene reasons.

To start a return or a warranty claim, contact our team at support@vivarays.com.