![[FREE] EyeFilter PRO - Bluelight @ Google Play (Was $2.29)](https://files.ozbargain.com.au/n/50/318650.jpg?h=a910969a)
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4.6 star rating with over 590 reviews and 10,000+ downloads.
Another app that prevents eyestrain by changing the hue of your phone screen - especially useful during the night.
App description quoted from the app page (spelling mistakes and all!):
The ingenious application for your exhaysted eyes is rolledout!!
As smartphone becomes inseparable daily necessity all day long,
Please find a betterway of using smartphone with Eyefilter, relieaving the strain on your eyes■ This application protects smartphone users from bluelight exposure, causing insomnia and amblyopia
- Prevent the screen from radiating bluelight
- It is good for protecting visual acuity of smartphone user, especially for children and office workers
- It doesn't cause quick battery drain, consuming less battery power supply■ Easy access to Eyefilter usage setting
- It is easy to access and change the usage setting(On/OFF) with widget function
- It is possible to adjust the opacity by double clicking the widget■ A variety of themes and altering function of notification
- Express your own indiviuality through a variety of themes selection
- Set themes of widget on the wallpaper
- Alter the notification comment and icon with your own preference■ Bluelight filter for optimal eyesight
- Optimal 5 sort of filters are available
- Prevent others from peeping your screen by adjusting the opacity■ What is bluelight?
- Bluelight is blue colored light with very short and visibel wavelength between 380 and 500 nm(nanometer).
It used to serve as medical treatment for pimples in dermatology. However, many experts say that persistent exposure of blue light is quite dangerous.
Namely, long time exposure of bluelight might cause xerophthalmia and even bring damage to retina nad eye lens.
Furthermore, bluelight exposure from smatphone and TV in the late night, sound sleep would be interupted by hampered sleep inducing hormons secretion.
Why do you need permission to use my phone's camera? I use my phone the most in toilet if you want to know.