Yeah its unfair but compared to what others use now (this picture is old and even clean uis back when would be considered clunky now) so in comparison to time its at least the same type.I think that's a pretty unfair comparison. You really don't need more space than what I have to see mechanics and the encounter.
You can fix the close screens and fix your eyeseight with proper glasses.my eyes are terrible because I spend 95% of my time sitting in the dark looking at screens that are too close.
Im gonna have to get glasses for desk work in i guess 2-5years too and atm i use some 10bucks glasses if my eyes are getting tired and it really helps. If you recently saw a doc for it and he couldnt help u im truly sry, but i think new glasses work wonders as i see with my dad who everytime hes got new ones moves away further from the monitor again
So in conclusion if it helps you its fine, but u cant expect anybody to like it and i think with some work you could optimize itwithout loosing the big buttons (those i like, its nice to have them to see proccs and stuff and im gonna get them for myself too today cuz im switching to fire).
What i mean is loosing some of the bars, you dont need to have all those skills clumped up in the bottom of the screen, if somethings bound to your keyboard and has no cooldown theres no need to have it imo (after a week or two of getting to know the specc).
I like it since i like ElvUi, in your case id consider diabling the bars on the chat which is a small change but improves the looks a lot imo. With the unitframes at the bottom its nice but with the "healer" layout and similar i dont think its looking good.I'm pretty comfortable with it right now. Might move the tank frames and get rid of focus frame buffs (or at least reduce the size a lot).