The white spot is discharge or a spot in his eye? Do you think it’s on the surface or in the eye?  Has the spot or cloudyness changed appearance at all?

Does he have any nasal discharge?

Is it a bit of the mucousy “sleepy type” discharge that might have migrated over to his eyeball?

Nevermind. I just reread and you said it isn’t isolated. The rest of his eye is cloudy as well. I think a vet visit is in order.

You could probably keep up the saline eye washes until the vet visits. Many rabbits like an eye wash. They might test to see if it’s from injury (like being poked with a bit of hay, an infection or something else. I think they give antibiotic eye drops or ointment for this sort of thing.

How is your rabbit otherwise? Eating, toileting, being his normal bunny self?

Sorry! I keep editing my posts. So I’ll repeat my qu above
How is your rabbit otherwise? Eating, toileting, being his normal bunny self?

Hopefully, since you noticed it right away and are acting quickly, it will be something that can be reversed. I’d say that the worst case scenario is he may lose vision in that eye, but this is not the end of the world for bunnies. Their eyesight is relatively poor anyways, and they can acclimate well to only have one working eye.

I wouldn’t separate him from his friend. He needs his buddy for comfort.