As far as I can tell, Odessa didn't bleed during the night. She used the litterbox, and again this morning. Her poop looks pretty much normal. I let her outside for a while, she came back inside willingly when I called for her. Eye was leaking blood again.
There's a small blood stain on the pillow in her travel cage, indicating that she could have already had the condition when we found her.. but none of us saw her bleed on Friday.. Well, she hid under various pieces of furniture, she could have bled without us knowing.
She seems a lot healthier now than when I found her, so it can probably wait until tomorrow morning.