andc No, everything was the same except the fact that I am still in recovery from severe burnout and at the time my burnout turned into depression. Then I started to stay at home most of the time and I was watching youtube documentaries for long periods of time (big big mistake). It lasted about a month when my perfect devices started giving me mild strain. Even though I stopped using these phones even for youtube somehow my eye situation got even worse and now they give me severe eye strain. I blocked the updates long time ago, lumia does not have any for long long time. I haven't installed anything, nor I have replaced hardware on them.
Also I found a really good doctor and I take medications. I would say my situation is perfect now, I feel really good and I got used to not being able to go anywhere and I do not have any headaches/strain most of the time, so my eyes are resting a lot. But still cannot look at these devices. So, guys, please keep in mind that your perfectly usable device can turn into unusable one when you suffer from psychological issues(excessive stress, suppressed feelings, hopelessness, depression, severe anxiousness etc.), which can be a consequence of this illness/issue.