Shadowwynd 2 points 1y ago
Windows and Mac computers both come with a free built-in magnifier. In Windows, click the Start menu, then start typing "Magnifier". On Mac, it is under Accessibility. Yes, there are ones you can pay for, but let's start with what we have first.
The Windows version natively moves up in 1x increments (e.g. 1X, 2X (200%), 3X (300%) etc. You can adjust this in the settings (1.25, 1.5, 1.75 ...). It can be a free-floating window of magnification, it can follow the cursor (on Windows 10) and it can be docked into place. Some people even get a 2nd monitor as their "magnification" monitor - everything the mouse touches on monitor #1 gets blown up onto Monitor 2 - this way you can see the whole on #1 and the enlarged image (whatever is around the mouse) on #2. You can even invert the colors, white becomes black, black becomes white - this helps some people. The Mac version is the same in all these respects.
On Windows, there is a free color overlay software called WindowShades: https://www.softpedia.com/get/Desktop-Enhancements/Other-Desktop-Enhancements/WindowShades.shtml
that can add a colored overlay filter on top of the screen (e.g. a blue tint, a green tint, a rose tint....). Some people have found it helpful - not so much for photos but for text, websites, and so forth. Many programs (including web browsers, and the Office 365) have a "dark mode" now that may be helpful.
What size monitor is he using now?