Hello, a foreign object in the eyes will make the eyes very uncomfortable and the object will be extremely irritating to your eyes.
First, you can go to a sink in the kitchen or bathroom, the water may help you whirl away the cat hair.
Second, before you try to remove the cat hair, you must make sure that your hands are clean, so wash them.
Third, turn on the water and make sure it a steady stream, also good temperature, not hot.
Fourth, tilt your head and make the stream from the faucet washes over your eye , at this time, you need to hold the eyelid open.
Then, just wait and feel whether the cat hair come out, you may use the mirror
to see. If you has some irritations, go to see the doctor.
Good luck!