RobC I have owned this monitor for half a year now. My eyes have been feeling quite good recently, but I can't tell you whether that has anything to do with the monitor as few other things in my life changed since I purchased it. For instance, I bought flicker-free Waveform light bulbs which I believe have possibly contributed way more to my eye health improving than this monitor, since the dozens of light bulbs I tried, be it halogen, incandescent, fluorescent, and LED have more and more resulted in a very uncomfortable and eyestraining and headache-inducing chore.
However, what I can definitely say that improved due to using this monitor is the fact that my upper inner eye muscles ('musculus obliquus superior' if you are curious) are very relaxed these days for the simple fact that the monitor is large enough for me to sit far away from it (pretty much like 3 meters / 9 feet), whereas these very muscles have become permanently very tight for squinting at my 13 inch Dasung Paperlike Pro for over two years. For this reason, I consider the SVD to be more comfortable than my Dasung even though the latter obviously has better contrast (of course this isn't an issue for the 25 inch Dasung model I suppose).
There's one moment where my eyes strain slightly with this monitor whenever it gets darker before the sun is completely set outside making the contrast worse, but that disappears immediately or can be circumvented if light is turned on before the contrast becomes too low, that is, I really turn on my light 30 to 60 minutes sooner than most other people in my neighborhood.
I also used to feel discomfort when I had sunlight cast directly onto the monitor and always made sure that reflections and glossiness were minimized. However, lately both these things haven't bothered me at all, but I really can't tell you why, but it definitely makes the picture look really nice on the monitor.
Well, that's my experience, others may differ, and even though things aren't perfect with my eyes (a week ago I tested my old Samsung Galaxy S8 again and its PWM was pretty quickly uncomfortable to me), I can still say taht all in all I have been thinking less and less about my eye issues lately, which is a mental state I really hoped to return to again ever since my issues got worse again three years ago.
P.S.: for anyone who wants to know about the color depth of this monitor, the Nvidia graphics settings only allow me to select between 6 and 8 bpc, therefore I assume this monitor doesn't support more than 8 bpc.