Here we just want to tell several things which may cause eye pain and headache and some ways to fix the problems with your new monitor.

Screen size

• Bigger monitors cause more eye pain and headaches
  • One reason is that they emit more light and more blue light enters your eye
  • More light into your eye is bad. It works just like looking at the Sun, it’s not healthy
• At night the monitor shouldn’t look like a light source in the room
  • Lowering the brightness is the solution, but if your monitor is using PWM this is actually worse
  • You can use Iris to lower the brightness without PWM

LCD vs LED

• LED lights emit a lot of light and make the letters on the screen more blurry
• LCD displays are better and they mostly don’t use PWM
  • TN (Twisted Nematic), IPS (In-Plane Switching), VA (Vertical Alignment) are all different kinds of LCD displays and they mostly differ by the viewing angle
  • The different kinds of LCD displays don’t cause a different level of eye pain and problems, they are all the same
  • Too much-emitted light, blue light, and PWM flicker are the causes of eye pain

Glossy vs Matte

• Glossy displays like this on the Macbooks cause eye pain because you can see reflections and this is called double image
  • Our eye constantly switches the focus between the screen and the reflections of the room and this causes eye pain
• The solution is to get a Matte screen
• Another solution is to place Matte screen cover on your Glossy monitor

Blue light

• You can read more about blue light effects on our eyes from our Blue light article

PWM flicker

• You can read more about blue light effects on our eyes from our PWM flicker article

Monitor testing

• You can test how healthy is your monitor for the eyes with our tests
  • Blue light filter Test
  • PWM Flicker Test
  • Subpixel Flicker Test
• You can make every monitor healthy for the eyes
  • Install Iris
  • Match the screen brightness to the room lighting
  • Place your monitor so the window in the room is left or right to you
  • Get a matte cover if you have a glossy monitor
  • Yawn more to produce more tears
  • Lower the Blue light and control the brightness without flicker with Iris

Answers also

• What can cause Eye pain and Headache problems from a new Monitor
• What do I need to know about a monitor to be more healthy

The post What can cause Eye pain and Headache problems from a new Monitor? appeared first on 💡👨‍💻 Iris - Software for Eye protection, Health and Productivity 🛌👀.

USB monitors don’t allow apps to change the colors and light emitted.

If you use Windows 7 or later

• On Windows 7
  • Enable Aero and switch to Iris High-level API
  • Now Iris should work on all your monitors
• On Windows 8, Windows 10 and later
  • Switch to Iris High-level API
  • Now Iris should work on all your monitors
• On macOS, Linux and other
  • We don’t have High-level API for macOS, Linux, and other distros so you can’t use Iris on this operation systems with multiple USB monitors
  • You can, however, use Iris on multiple monitors if you connect them with normal VGA, HDMI, AirPlay cable
  • If you use macOS, Linux or OS other than Windows use normal cables so Iris can work on all your monitors
  • Now Iris should work on all your monitors

Here is a video about how to switch to Iris High-level API:

Other solutions

• Please give us more info about your system and we will test
• Send us the E-mail you used for the purchase and we can refund you 🙂
  • Steps to Get a Refund

Answers also

• How to fix Iris not working on multiple USB monitors
• How do I use Iris on the external monitors
• The effect will not show on the monitor I use
• The effect only shows on the small laptop monitor
• The app doesn’t register that there are 2 monitors
• How do I get your app to recognize that I am using 2 monitors
• I have a laptop that is connected to an external monitor
• Will Iris work on the external monitor in this setup
• I use a monitor connected to a laptop side by side. Is it possible to install iris on my laptop and have it adapt the color of my monitor too
• I am evaluating your software. It looks great on my main monitor (directly connected to the HDMI port of my laptop). But I have a 2nd monitor which is connected an HDMI cable and then through an HDMI-to-USB adaptor to the USB port of my laptop. This monitor is detected by Iris however looks like the changes or adjustments in Iris does not effect this 2nd monitor. I do not see nay changes of brightness or so on in this one. Do you have any suggestions
• I can’t get it to work on my second monitor. Using the Mac version of Iris. Sometimes it Iris does work on my 2nd monitor. But has a mind of its own.
• hi, does iris working with displaylink? Because f.lux does not work

E-mail answer

Can Iris work on external monitors

• Yes, Iris can work on external monitors, but it depends on the cable
• See this article with detailed explanations 🙂
  • https://iristech.co/faq/making-iris-work-on-external-monitors/

Iris does not work on my 2nd monitor on macOS

• You need to connect Iris with normal VGA, HDMI or AirPlay cable.
• The logic is that Iris tries to detect all connected monitors when the program starts.
• If you connect your monitor and Iris doesn’t automatically detect you can try to quit and reopen Iris
• Do this only once. If this doesn’t work try with different cable
• If this doesn’t work send me more info
  • https://iristech.co/faq/how-to-report-a-problem-or-bug/
• For more info
  • https://iristech.co/faq/making-iris-work-on-external-monitors/

The post Making Iris work on External monitors appeared first on 💡👨‍💻 Iris - Software for Eye protection, Health and Productivity 🛌👀.