The eyes are the windows to the soul, and this applies to both humans and cats. A cat's eyes usually look bright, but if they are not properly cared for, they can develop various eye diseases. Initially, the eyes become dull, and later, due to infection or external irritation, secretions and pus will gradually appear. Eventually, this can lead to conjunctivitis, keratitis, and other diseases. Therefore, it is essential to clean your cat's eyes daily at home.
Some cats are more prone to tear buildup around their eyes, causing discoloration of the surrounding fur. If a cat experiences visual impairment, it may become irritable and restless. Long-haired cats are prone to eye diseases; their tear ducts can become blocked, causing the area around their eyes to lose its luster, requiring cleaning. Short-faced cats, because their nasolacrimal ducts are shorter than those of other cats, are often troubled by tears and eye discharge. Their naturally short nasal passages mean their bright eyes are constantly watery, and over time, a large amount of reddish-brown substance accumulates on their cheeks, leaving unsightly tear stains on their beautiful faces. Therefore, daily eye care is especially important for short-faced cats. Below are the specific steps. 
I. Nursing Tools
The tools needed are very simple: just dry cotton and eye drops. When choosing eye drops, we need to distinguish between the different eye drops on the market and understand their applicable scope. Some are for specific eye diseases, while others can be used for daily care.
Of course, sometimes cats won't sit still and let their owners clean their eyes. In this case, you can use nearby clothes or a towel to restrain them, with one person holding them while the other cleans their eyes.
Before cleaning, check for any signs of visual impairment. Use a small clean tissue or cotton swab dipped in baby oil to gently wipe away any dirt, including tears and eye discharge, from the cat's eyes and face, keeping the skin and fur as dry as possible. Use a different clean tissue or cotton swab to clean the other eye and cheek.
II. Specific Steps
First, use your left hand to hold your head still, and use your right little finger to pull down your lower eyelid to open your eyes and instill eye drops.
The second step is to close the cat's eyes and let the eye drops stay in their eyes for a while.
When using eye drops, only 2 to 3 drops are needed in each of the cat's eyes; a lot is not necessary. Lift the upper and lower eyelids to ensure the drops fully contact the mucous membrane inside the eye. Have the cat close its eyes, and gently massage the skin on its face to keep any excess liquid in the affected area. If the amount of liquid seems insufficient or drips, add a small amount. At this point, try to prevent the cat from opening its eyes to avoid getting the contaminated liquid back into them. Then, carefully wipe the cat's eyes, eye sockets, and face clean with a clean tissue.
Third step: Wipe the eyes with cotton.
Done! Now look at the cat's eyes again. Don't they suddenly look brighter?
Finally, for cats with eye or ear problems, it is recommended that owners use an Elizabethan collar to prevent them from scratching and causing further injury.