Saturday, 17 August 2019

Blue light on computers, iPhone and iPads

Although I'm a bookworm, I pride myself in avoiding glasses by taking extremely good care of my eyes (and my children's eyes).

I read in well-lit places and I do not read in the dark.

I have read thousands of books and yet I am not short-sighted.

Things changed when I had to do a lot of work on the computer and of course, the smart phone.



After 1-2 hours on the PC or having to plough through paperwork, I emerged with dry, irritable red eyes.

Did you know about the harsh effects of blue light (white light), whose rays penetrate your cornea and affects your retina directly?

No wonder I keep hearing of friends and family getting non age-related macular degeneration.

What is non age-related macular degeneration?

When people grow old (60 years and above), their vision becomes patchy like the photo below.

If you are standing in front of your grandfather or grandmother, you may appear like that to him or her:


AMD happens when you are old but nowadays, with kids and adults:
  • reading text messages, 
  • reading ebooks, 
  • staring at smart boards from 7.30 am till 1.30 pm at school (6 hours) 
  • reading online textbooks instead of printed textbooks
  • playing games on smartphones, tablets, 
  • LED lighting at home and people (especially schoolchildren working on school projects on the computer or laptop)
more and more people will be affected by non-age-related macular degeneration. 

Children, teenagers and young adults experiencing AMD are suffering from non-age-related macular degeneration. 

How do you prevent non-age-related macular degeneration?

1. Limit your children's exposure to direct LED lighting 

LED lighting is promoted as energy saving because it's a light-emitting diode (LED) because it's a bright light in compared to your fluorescent bulb.

Fluorescent bulbs do not harm the eyes in the long run simply because they are not light-emitting diodes - they are fluorescent gas encapsulated in tubes.

---> By the way, LEDs are made with aluminum-gallium-arsenide semiconductors.

2. If you really have to choose LED lighting, go for concealed lighting, not direct overhead lighting. 

A professional interior decorator or a smart carpenter and electrician can help you with this.

3. Buy glare-reducing LED filters for your smartphone, tablets, computer screens and laptops

Remember to take a break after 1 hour of working on smartphone or computer!

4. Read printed books, please. Not e-books. 

I do not read books on my smart phone or even iPad because the screens used LEDs. The only e-book reader that I find that is kind to the eyes is the Amazon Kindle.