Medically reviewed by Christine L. Larsen, MD Eye crust forms when mucus, oils, and debris accumulate, often during sleep.

One issue that many cat parents might come across is the dreaded blocked tear duct. If your cat has a blocked tear duct, you ...

My six month old daughter has suffered from blocked tear ducts since birth and her eyes are always infected and streaming with green or yellow mucus. I have been told it should clear with wiping ...