How to stop blue light from devices ruining your sleep – and skin

After lawyer Kam Dhaliwal realised how much of her life in Hong Kong revolved around staring at digital screens, she bought a pair of blue-light-blocking eyeglasses. The HK$300 (US$39) purchase from a local ophthalmologist required no prescription, and she quickly came to appreciate their value. A casual discussion with her friends had helped her recognise she might be harming her eyes by spending long hours poring over legal documents on-screen at work. The 29-year-old was also mostly going…

Read the original article at South China Morning Post