my dog eyes are worrying me a lot, is this normal to look like this? though the eyes Doesn't release any mucus, he had eye problem many months ago, but after applying eye drops for few days it was cured, sometimes it does become slight red, and this blood lining has been there since long time
It doesn't look like a inflammatory condition. But observe the pet for any discomfort, increased redness in the eye, increased tear production etc. If you find these signs consult a vet for ophthalmic examination. Otherwise no need to worry.