I did try to do some research on this subject before popping over to ask for my fellow Charmer's thoughts/opinions on this subject matter! (And I have some thoughts/speculation too)
(Going to be as concise as I can, cause I went down a rabbit-hole that lead to an article about lawsuits over spectacles and the new medical field of vision in the late 19th century, and I don't want to bog down the thread too much.) From what I can tell, by the 1890s, the (muggle) world had quickly growing understanding on eyesight (they knew about color blindness, for one thing) and how it could worsen over time - spectacles were sold, opticians were a thing, and eye exams could be taken by people. People were starting to understand that things like a higher education and leisure reading were things that could negatively impact eyesight over time and I saw mentioned somewhere that there was compulsory vision testing for specific occupations as the 19th century was coming to an end...
- Would magical VE be further along in eye exams and understanding vision problems than the muggle world? How much so? (I want to assume they would be, but it doesn't hurt to see what the census on this is - if you'd like the expand on your yes/no, please do!)
recalling that debate about why harry potter's glasses got fixed but not his actual vision lol
- Would eye exams be more exclusive to certain classes based on expense? What about actual spectacles? Its seem like they'd be an expensive item to have, even if they were necessary, due to specialization and/or novelty. In modern times (for the US), I know that most elementary kids get their eyes tested a few times but after that, if you think your sight is worsening, you need to go to an eye doctor yourself, so it feels likely in saying eye exams would not be universal at this point in history, but just how exclusive they are is what I am wondering!
- How un/fashionable would spectacles have been for the time period? Since freckles and moles were not "in" during this time period, it seems spectacles would not be either... but also I feel like fellas could probably get away with being "distinguished" wearing them, while ladies... probably not so much. And I imagine some people would choose the risk of worsening eyesight over looking unstylish with glasses on (I saw some articles that mentioned some spectacles started getting moderately stylized around the late 1890s, but then other articles didn't mention that at all, so I'm not sure how accurate that is... also sounds expensive, if it was the case, like nowadays).
I'm probably overthinking this, since I know there are play-bys with glasses on Charming, and it probably won't amount to much besides some minor character development later... but that is my brand at this point lol <3