[wrong_variable]

I do not have eye strain.

I have astigmatism - something that is heredity. I use tabs.

My spherical power is normal.

Are you saying anyone without perfect vision should quit coding ?

[master-litty]

Not at all.

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.

[wrong_variable]

Are you over or under 30 ?

Normally vision stabilizes at 20-30 of age.

computer work normally does not lead to blindness, I have spoken to a large number of different eye doctors and specialists about it.

Computer work may lead to eye strain but it hasn't shown to have any long term detrimental effect.