Even over-the-counter eye drops meant for humans can be harmful to cats. They may contain ingredients that are toxic to them, and the wrong type of drops could worsen an existing eye condition.
Here's what you should do:
1. Contact your veterinarian immediately. They can assess your cat's eye condition and recommend the appropriate treatment, which may include eye drops.
2. Follow your vet's instructions carefully. They will be able to tell you exactly what type of eye drops to use, how often to administer them, and how to apply them safely.
Please don't try to treat your cat's eyes on your own. It's essential to seek professional veterinary care to ensure your cat's safety and well-being.