Is daily black, crusty eye discharge normal for my 11-year-old cat?

This can be a pretty normal thing. Cats have a normal staining in their saliva and tears that can look brownish when dried. Not a big deal. I would not be overly concerned unless it becomes excessive or he seems to have other problems with the eyes. I suggest you use these eye wipes when cleaning the eyes although there is nothing wrong with using the tissue and warm water as you have been. ( https://www.amazon.co.uk/s?k=B073HGLWLH&ref=nb_sb_noss )

Yes, that is pretty normal for this breed. You will have to wipe them 2-3 times per day to avoid a lot of build-up. I would suggest using these wipes: ( https://www.petco.com/shop/en/petcostore/product/well-and-good-cat-eye-wipes )

Hi there, I'm only appreciating a small amount of eye discharge in the photograph, which could be normal after a long nap or sleep, just like in people. If Percy begins to hold his eyes closed, the eye discharge becomes yellow/green/runny, sneezing, coughing, or less interest in food- these would all be signs of a respiratory infection that may require treatment and an exam from your vet. I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach.

You may be seeing dried tears which will sometimes appear dark in color especially in a white cat. If PK is not squinting, and you are not seeing red eyes or excessive discharge what you are seeing is likely normal. However, in some cases eye discharge can be a sign of an upper respiratory infection. It's hard to say for sure if the debris you are seeing in PK is normal without doing an examination on him. If you can take a picture and submit it that may also be helpful. If PK develops any signs of respiratory illness (continued eye discharge, sneezing, lethargy, or changes in appetite) then he should be examined by a veterinarian. Thanks for using Petco Pet Education Center, formerly Petcoach!

Clear eye discharge is not uncommon. I would not be worried about this unless the discharge turns yellow or green which would indicate an infection. You can use saline solution or a commercial eye wash to rinse the eyes out daily if he will let you. Otherwise just wiping the discharge away when you see it is fine. I would use a cotton ball soaked in warm water to wipe the eyes and not a Q-tip. They also have pre-made eye wipes for cats if you would rather use that. ( https://www.petco.com/shop/en/petcostore/product/well-and-good-cat-eye-wipes ) ( https://www.petco.com/category/cat/cat-health-and-wellness/cat-ear-and-eye-care ) Hope this helps. Best wishes.

What a cute kitten! We can sometimes see tears from the eye turn a blackish color if they accumulate on the face and dry, they become oxidized and turn dark or rust colored. I would recommend wiping around your kitty's eyes with a warm wet washcloth a few times away to clean off any excess tears/discharge. If you notice any redness to the eyes, discharge that starts to look green or yellow, sneezing/coughing, lethargy or decreased appetite, then I would recommend bringing Mango into the vet for an examination.

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear that Marigold had an upper respiratory infection. A dark colored discharge is completely normal and is just what accumulates near the corner of the eye. It consists of the dried discharge left from the tear film that gets deposited onto the eye and flows across the eye. Unless you notice redness and a green or yellowish discharge I wouldn't worry. A clear discharge with a lot of squinting and redness would be something to have your vet evaluate right away. Sounds like this is completely normal and is found in both normal cats and dogs. Good job treating the conjunctivitis, sounds like it has resolved.