Happy Thanksgiving!
Thanks for the quick and detailed response. And I think we are on the same page. "Do not cry until you are cut" is a good way to put it. I don't think I would do any eye surgery. I can imagine it probably isn't a very practiced procedure on snakes (compared to more common pets and humans), and it comes with extra difficulties because of their size and anatomy. Also, out of all the creatures, BPs would probably deal with blindness very well. Nonetheless, thanks for bringing up Phacoemulsification; it's good to have some idea and specifically a name for what treatments are out there. It makes sense to do it on only one eye.
While I think the idea of her losing her sight does seem sad, as she often climbs (with supervision) and periscopes from high places, I think she is very familiar with her room, and I think I can set up an environment where she can still thrive if anything were to happen.
Thankfully, she has been on F/T rats for most of her life and takes them very well. While she isn't very bitey, I think hook training is a good idea--thanks again.
I spent the day calling up most of the vets in my city (Vancouver, BC) and the surrounding areas to find someone who handles reptiles. I will probably do a phone/online consultation when they are free next week. I'll basically send them what I posted here to double-check that there isn't anything too serious. And before I bring her in person, I'd rather wait until after she sheds to see if it resolves on its own. No need to bring any unnecessary stress for her, since she is otherwise doing fine and unfortunately the vet is not that close.
As an update for her, it doesn't seem to be affecting her too much, she still notices me opening the door from across the room while she hides in the clothes bin that she likes to explore.
https://imgur.com/a/SLmmi4D (couldn't attach it for some reason)
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