Leaving all problems with the amounts of money this could ever cost, what's so wrong with getting it?

So I decided to read about achromatopsia (the most similar disease to silverwash we have)

And here the differences begin. Achromatopsia comes with many other eye conditions (like really bad eyesight, fear of light because of sensitivity to it, involuntary eye movements). Tartah doesn't have all of this, he just can't see colors, so most likely silverwash is silverwash as an unknown to us magical disease in their world.

And getting to the point, achromatopsia is an inherited genetic disorder that prevents the cone cells in the retina from functioning properly. Our world do have glasses for colorblind people, but it works only for people with red-green color blindness.

So no focusing of light and multilayer filter can do it for him... Or there's something magical in their world I don't actually know about and we need to blame it on witch society again, so yeah. Think as you want to.

Try to imagine forbidden spell on his eyelids.

I have zero ideas how to even begin with creating my own spell but I think something that would be possible and pretty helpful is colorblind glasses! But instead silverwash glasses and there’s gyphs on the lenses!

It's actually a bit interesting how Qifrey found magic that can hide his right eye and aid the losing vision on his left one. But NO ONE ( i am not blaming Qifrey for this but he never thought either) thought to do that for Silverwash victims? At first, i vaguely (and wrongly) remembered it to be caused by the Silverwood tree so maybe it's kind of against their rules? But i think that was not the case?

Welcome to scenic Isola Radiale, Tartah!

You will be housed APARTMENT 305!

You’ll retain the use of Integration. You'll also be given your pen and ink set!