---
product_id: 87683242
title: "by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use"
brand: "truedark"
price: "181965CFA"
currency: XOF
in_stock: true
category: "True Dark"
url: https://www.desertcart.sn/products/87683242-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue
store_origin: SN
region: Senegal
---

# Blocks 75% blue light Filters 99% UVA/UVB rays Wrap-around fitover design by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use

**Brand:** truedark
**Price:** 181965CFA
**Availability:** ✅ In Stock

## Summary

> 🕶️ See the light, own the day — block blue, boost focus!

## Quick Answers

- **What is this?** by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use by truedark
- **How much does it cost?** 181965CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/87683242-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue)

## Best For

- truedark enthusiasts

## Why This Product

- Trusted truedark brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blue Light Defense:** Shield your eyes from 75% of disruptive blue light for sharper focus all day.
- • **All-Day Comfort Fit:** Ergonomic wrap-around acetate frame fits over most eyewear for seamless wear.
- • **Sleep & Focus Optimized:** Supports natural circadian rhythm to keep you energized now and sleeping better later.
- • **UV Protection Powerhouse:** Blocks 99% of harmful UVA and UVB rays, perfect for indoor and outdoor use.
- • **Neuroscience-Backed Clarity:** Engineered with biohacking insights to reduce eye strain and boost daytime alertness.

## Overview

TrueDark by Dave Asprey Daylights Fitovers feature yellow polycarbonate lenses that block 75% of blue light and 99% of UVA/UVB rays. Designed with a lightweight acetate wrap-around frame that fits comfortably over most glasses, these lenses reduce eye strain and support natural circadian rhythms for enhanced daytime focus and better sleep. Backed by neuroscience and biohacking expertise, TrueDark is the premium choice for professionals facing heavy screen exposure.

## Description

Buy TrueDark by Dave Asprey | Daylights Fitovers | Blue Light Glasses for Women & Men, Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use on desertcart.com ✓ FREE SHIPPING on qualified orders

## Features

- Block the blue light that disrupts focus and sleep. Perfect for: screen time, grocery runs, airports, and long workdays under LED and CFL lighting.
- Block 75% of junklight indoors, and 99% of UVA/UVB rays. Engineered to filter fatigue-causing wavelengths and let in the energizing light your brain needs to promote daytime alertness.
- Reduce Eye Strain & Support Focus: Reduces eye strain from long hours on screens while minimizing discomfort and sensitivity to artificial light. Supports lasting focus, less daytime fatigue, and encourages a natural balanced circadian rhythm for steady daytime clarity and better sleep.
- Fitover Wrap-Around Design: Wrap-around acetate frame with side shields fits comfortably over most eyewear, paired with photochromic lenses. Frame Width 168mm | Lens 64mm x 43mm | Bridge 19mm | Arm 132mm. Built for comfort, coverage, and everyday wear.
- Founded by Dave Asprey: TrueDark started from one problem: artificial light was wrecking Dave’s sleep. Cheap blue blockers weren’t cutting it. So the first ever lens system was built—using neuroscience, circadian biology, and decades of biohacking insight.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GRCCN68 |
| ASIN  | B0GWV9JM7W |
| Age Range Description | Adults |
| Apparel Fabric Weight Class | Lightweight |
| Arm Length | 132 Millimeters |
| Best Sellers Rank | #127,618 in Health & Household ( See Top 100 in Health & Household ) #490 in Computer Blue Light Blocking Glasses |
| Brand | TrueDark |
| Bridge Width | 19 Millimeters |
| Color | Fitovers |
| Customer Reviews | 4.4 4.4 out of 5 stars (92) |
| Date First Available  | March 18, 2026 |
| Fit Type | Fit Over |
| Frame Material Type | Acetate |
| Frame Type | Full Rim |
| Frame Width | 168 Millimeters |
| Garment Size Country | United States |
| Included Components | Foldable hard-shell glasses case and microfiber lens cleaning cloth |
| Item Shape | Rectangular |
| Item Weight | 5.6 Ounces |
| Lens Height | 43 Millimeters |
| Lens Material Type | Polycarbonate |
| Lens Width | 64 Millimeters |
| Manufacturer | Truedark |
| Material | Acetate |
| Pattern | Solid |
| Special Features | Lightweight |
| Style Name | Fitovers |
| Target Audience | adults |
| UPC | 855948007082 |
| Unit Count | 1.00 Count |
| size | 1 Count (Pack of 1) |

## Images

![by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use - Image 1](https://m.media-amazon.com/images/I/51Rrzc8h+XL.jpg)

## Available Options

This product comes in different **Lens Color, Color** options.

## Questions & Answers

**Q: Will TrueDark Daylights glasses help with migraines or light sensitivity?**
A: Many users with photophobia or light-triggered headaches find relief by reducing exposure to fatigue-causing wavelengths from screens and artificial lighting. Polarized lenses reduce glare and UVA/B filter provides additional protection.

**Q: Do I still need Sunsets or Twilights if I wear Daylights junklight blocking glasses all day?**
A: Yes. Each lens plays a unique role. Daylights filter 75% of blue light while letting in healthy blue for energy and focus. Sunsets help you ease naturally into evening, and Twilights block 99% of junklight to mimic darkness and support deep sleep.

**Q: What is Junklight and how can it affect me?**
A: Junklight is the artificial light from screens, LEDs, and overhead lighting. Your brain treats light like a signal—the wrong light at the wrong time of day throws your biology out of rhythm. The result? Junk sleep, junk energy, junk focus.

**Q: When is the best time to use Daylights glasses to block junklight?**
A: Wear Daylights after getting some natural sunlight in the morning. Aim for about 30 minutes of daylight first—then use Daylights to block junklight from screens, LEDs, CFLs, and other artificial sources throughout the day.

**Q: What percentage of blue light should I be blocking during the day?**
A: Your brain needs some blue wavelengths during the day to stay alert and energized. TrueDark Daylights target only the disruptive wavelengths (380–500nm), while still letting in the beneficial light that supports focus, mood, and energy.

## Frequently Bought Together

- TrueDark Daylights Amber Fitover Blue Light Blocking Glasses to Reduce Eye Strain and UV Glare - For Men & Women, Computer Screen, Gaming, TV, Phone - by Dave Asprey
- Smarter Not Harder: The Biohacker's Guide to Getting the Body and Mind You Want
- TrueDark Twilights Elite Blue Light Blocking Glasses to Reduce Eye Strain and UV Glare for Better Sleep - Men & Women, Computer Screen, Gaming, TV, Phone - by Dave Asprey

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**Shop now:** [https://www.desertcart.sn/products/87683242-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue](https://www.desertcart.sn/products/87683242-by-dave-asprey-daylights-yellow-lenses-block-75-of-blue)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-07-29*