Yes I still have the X80K. My eyes seem to do well with it, about as good as I can expect from a modern screen. When I visit family they have Samsung TV's and those screens cause me a lot of pain. I think all Samsung's use PWM. My Sony X80K doesn't cause the pain that the Samsung's do. I recommend buying from a place with easy returns since I can't promise that it will work for you. I chose this Sony model because supposedly the higher end Sony's do use PWM.
A little off topic but I was thinking about my TV and eye strain history. I had plasma's for over a decade with no problems, but most of that time was spent watching cable TV, which I think uses mpeg2. Toward the end of my plasma time we switched to mostly watching streaming services and I think they did give me some eyestrain on the plasma. I have only used streaming services on the Sony X80K and I didn't notice any big differences when watching compared to the plasma. I don't want to go back to cable TV but I would be curious to see how my eyes feel watching cable on the Sony.
On the Sony I use custom color picture mode. Black adjust, Advanced Contrast Enhancer and Live Color are all set to medium. These settings are probably a little artificial, but they are what allowed the TV to look comparable to my plasma.