
I had a puppy (singleton) last year who after a few days post birth had a swollen eye. I was given antibiotic drops for oral use & then when the eye opened had some drops for her. The eye was much later to open than the good eye but when it did open it was all cloudy

the swelling did start to go down when she was about 9 weeks old but she remained blind although I do think she could see shapes. She went to a good home and lives a normal life.
Good luck