---
product_id: 87683242
title: "TrueDark by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use"
brand: "truedark"
price: "166683CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "True Dark"
url: https://www.desertcart.sn/products/87683242-truedark-by-dave-asprey-daylights-yellow-lenses-block-75-blue
store_origin: SN
region: Senegal
---

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

**Brand:** truedark
**Price:** 166683CFA
**Availability:** ✅ In Stock

## Summary

> 🕶️ See clearer, focus sharper, live brighter — your eyes’ new best friend.

## Quick Answers

- **What is this?** TrueDark by Dave Asprey | Daylights Yellow Lenses Block 75% of Blue Light for Heavy Daytime Screen Use by truedark
- **How much does it cost?** 166683CFA 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-truedark-by-dave-asprey-daylights-yellow-lenses-block-75-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

- • **UV Ray Shield:** Filters 99% of harmful UVA and UVB rays, protecting your eyes indoors and outdoors.
- • **Blue Light Defense:** Blocks 75% of disruptive blue light to reduce eye strain and boost daytime focus.
- • **All-Day Comfort Fit:** Wrap-around acetate frame with side shields fits over most eyewear for seamless wear all day.
- • **Complete Eye Care Kit:** Includes foldable hard-shell case and microfiber cleaning cloth for premium lens maintenance.
- • **Neuroscience-Backed Design:** Engineered using circadian biology and biohacking insights to support natural alertness and sleep cycles.

## Overview

TrueDark Daylights Yellow Lenses are premium fit-over glasses designed to block 75% of blue light and 99% of UVA/UVB rays, reducing eye strain and supporting natural circadian rhythms. Crafted with a lightweight acetate wrap-around frame, they fit comfortably over most eyewear, making them ideal for heavy daytime screen use and exposure to artificial lighting. Developed by biohacking pioneer Dave Asprey, these lenses combine neuroscience and circadian biology to enhance focus, reduce fatigue, and promote better sleep.

## 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

Review: Do a great job of blocking most blue and all UV - After lens replacement I was worried about UV and blue light since both are reported in the literature to be a problem that may cause macular degeneration, which is particularly a risk after lens replacement according to what I've been told. Anyway, these fit well over glasses and the color is not very obnoxious. It took a day or so to get used to. It's kind of like putting your "night-time" phone or computer setting on the whole world. :) I can see the blue-blocking (though I don't have any trouble distinguishing shades of blue wearing them, it's only partial blocking) and I tested the UV blocking with a UV lamp and fluorescent paper, they seemed to work for that too. Happy to find them.
Review: They Have Helped! - I have been looking for a pair of fit-over glasses to use during work hours on the computer. I work on the computer for my job eight hours a day. I also use them at home when watching the TV and looking at my phone. Before using these glasses, my eyes would feel very strained, and my vision would be blurry sometimes when I got off the computer for a few minutes. I have not had any blurred vision eye, strain, or headache since wearing these glasses. The glasses are very comfortable.

## 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 |
| Age Range Description | Adults |
| Apparel Fabric Weight Class | Lightweight |
| Arm Length | 132 Millimeters |
| Best Sellers Rank | #146,800 in Health & Household ( See Top 100 in Health & Household ) #544 in Computer Blue Light Blocking Glasses |
| Brand | TrueDark |
| Bridge Width | 19 Millimeters |
| Color | Fitovers |
| Customer Reviews | 4.4 out of 5 stars 90 Reviews |
| 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

![TrueDark 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Do a great job of blocking most blue and all UV
*by S***T on May 14, 2023*

After lens replacement I was worried about UV and blue light since both are reported in the literature to be a problem that may cause macular degeneration, which is particularly a risk after lens replacement according to what I've been told. Anyway, these fit well over glasses and the color is not very obnoxious. It took a day or so to get used to. It's kind of like putting your "night-time" phone or computer setting on the whole world. :) I can see the blue-blocking (though I don't have any trouble distinguishing shades of blue wearing them, it's only partial blocking) and I tested the UV blocking with a UV lamp and fluorescent paper, they seemed to work for that too. Happy to find them.

### ⭐⭐⭐⭐⭐ They Have Helped!
*by A***A on September 29, 2023*

I have been looking for a pair of fit-over glasses to use during work hours on the computer. I work on the computer for my job eight hours a day. I also use them at home when watching the TV and looking at my phone. Before using these glasses, my eyes would feel very strained, and my vision would be blurry sometimes when I got off the computer for a few minutes. I have not had any blurred vision eye, strain, or headache since wearing these glasses. The glasses are very comfortable.

### ⭐⭐⭐⭐ Good blue blocking glasses
*by B***A on March 21, 2026*

Great blue blocking glasses. Fit well over glasses or by themselves. Light weight. I felt the lens wasn't perfectly clear. I guess none are but I decided to go with a different brand with slightly clearer lenses. I will only wear them at night for watching TV.

## 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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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-21*