Sleepaxa Research Hub | Photobiology & Optical Science

Quick answer: Photophobia — discomfort or pain from light — is a symptom, not a disease. Over 90 conditions can cause it. The most common are...

Quick answer: For headaches and discomfort under tube lights, LED panels and screens, FL-41 is the better choice: it filters the 480–520 nm blue-green band linked...

Quick answer: FL-41 glasses use a rose-coloured tint that selectively filters blue-green light around 480–520 nm — the band many people with migraine and light sensitivity...

By Suraj Dubey | Senior Optometrist, Founder & Head of R&D, Sleepaxa Private Limited Last updated: April 2026 Disclaimer: This article is for educational and informational...

By Suraj Dubey | Senior Optometrist, Founder & Head of R&D, Sleepaxa Private Limited Last updated: April 2026 Looking for FL-41 glasses in India? You've come...

By Suraj Dubey | Senior Optometrist, Founder & Head of R&D, Sleepaxa Private Limited India is in the middle of a light sensitivity epidemic. And most...

By Suraj Dubey | Senior Optometrist, Founder & Head of R&D, Sleepaxa Private Limited If you have migraines, you know this feeling: the office lights feel...

By Suraj Dubey | Senior Optometrist | Founder & Head of R&D, Sleepaxa Private LimitedPatent Holder: IN 587746 | ORCID: 0009-0003-7510-9254 For 30 years, FL-41 lenses...

This article is based on our published research: Dubey S, Chaudhry M (2026). Intrinsically Photosensitive Retinal Ganglion Cells (ipRGCs): Subtypes, Signalling Pathways, and Implications for Photobiological...

If you suffer from migraines, there's a good chance that light makes them worse. Maybe fluorescent lights at your office trigger a dull throb behind your...