What if I wear eyeglasses and have to fork anything from 1% to 10% of my yearly income (in many cases even more, driven up by taxation) just to be able to see properly? It's especially bad if your economies mean you cannot afford to have at least a single backup or have one that is many years old.
It affects something so essential, but it's hard for people to recognize it.
I live in the Czech Republic, good glasses with a titanium rim will cost about 500 eur and last for around ten years.
I personally prefer daily contact lenses (the kind that you discard before sleep) which cost me about 400 eur a year; I know this is a bit of a luxury, but even this only touches the 1% of yearly developer income. Glasses would be in the 0.x% category, depending on how much your acuity changes over time.
Bought my top quality titanium Shiluette "forks" in China for €4 per pair and also bought the repair tools in China for €30. With these low prices there's not even customs tax. I have several backups now. And the quality is even better.
It affects something so essential, but it's hard for people to recognize it.