I have very poor vision and have been told by two different optomotrists that for me, personally, my vision will worsen as I strain my eyes. I never thought to wonder if this was different for anyone else -- One of those things it seems.

I was careful with my phrasing to indicate that but perhaps missed the main thought -- Perhaps a visual tool isn't the most effective nor pleasurable one for a severely visually impaired individual. Not because of any "burden" they create on others (e.g. using tabs which isn't a real burden at all) or an elitist attitude (e.g. they shouldn't code), but because of the burden I imagine sight is to them.

I wear glasses over my contacts simultaneously to work at a screen effectively -- I've been told by my optomotrists that work at the screen will continue to make my vision worse, but evidently I'm not too familiar with the correct terminology for my own impairments nor for others (and whether they always worsen). A fundamental misunderstanding on my part.