[nexuist]

Even in private company code, there may well come a day when a vision impaired person is hired and has to work on the codebase. Even though the odds are low, you'd be setting yourself up for long term success if you make the switch now. Not saying that you should, just that it's always worth considering who will end up maintaining your code after you finish working on it.

[WoahNoun]

See for example this blog post:

https://blog.aboutamazon.com/working-at-amazon/blind-since-b...

[em-bee]

in a company it is still possible to convert the code at the point when that employee joins.

for a FOSS project, the decision to join may well depend on the readability of the code, at which point it is already to late to solve the problem, because the potential developer already moved on.