I was encouraged to stick with my mechanical film cameras, following a visit to my optician for an eye check-up. He mentioned there was increasing evidence of long term eye damage; in particular from constant use of i-phone type devices. Apparently because these have small screens and are often held close to the eyes, there is serious risk from certain wavelength emissions adversely affecting the eyes.
I then asked him, "What about digital cameras with their electronic viewfinders"?....He indicated that the jury's out on that one, as they are a relatively new development, to his knowledge, medical research has not been instigated, but he would not use one.
Could it be that, rather like the smoking habit, people become aware of the dangers to health when it's too late?