1. What is blue-light and why it matters

Visible light includes a spectrum of wavelengths; the high-energy, short-wavelength portion is commonly called blue-light (approximately 380–500 nm). Sources include sunlight, LED lighting, smartphones, tablets and computer screens.

Not all blue-light...

How UV Rays Affect Your Eyes Year-Round

Quick summary: Ultraviolet (UV) radiation from the sun affects the eyes as much in winter and spring as it does in summer. Long-term and cumulative exposure increases the risk of conditions such as cataract, pterygium, photokeratitis and retin...

Introduction

Digital screens have become a part of everyday life. From laptops and smartphones to tablets and TVs, we spend nearly 8 to 10 hours a day looking at illuminated screens.

But behind this convenience lies a hidden challenge—blue light exposure. Over time, excessive blue light can cause eye ...