I don't want to take any risks with my eyesight, but also if it's case of getting used to it over a few days of use and then being completely fine with it, then I'd love to use it.
Based on my experience with CRT monitor eye strain, which I suffered with for years and years, the more you use a display that strains your eyes, the weaker and more sensitive they get to it.
In my experience at least — the more hours I put in staring at the monitor, day after day, month after month, year after year, my pain symptoms got worse and my sensitivity to the screen increased. It got to the point that I couldn’t even tolerate catching a CRT monitor on in my peripheral vision.
When I’d take a break from computers for months, my eye strain would slowly diminish and vision would get better, but my eyes never returned to the state they were before ever using a computer.
So…. will using an irritating iPhone screen wreck your eyes? Probably not. Will it create sensitivity to it? Probably. Will using it long enough even though it bothers you strengthen the eyes and nervous system so that you can tolerate it better? In my experience, absolutely not.
In my experience- symptoms will get worse the more you use it.
Everyone is different and adapts to stresses differently, but in my case as least, that was my experience.