Ha, Teabag has pink-eye and he keeps walking into things it wouldn’t be so funny except every time he knocks something over he gives me this I-meant-to-do-that-look. He’s priceless. At some point we’ll tip into it’s-all-your-fault-anyway territory, but I’m used to that and besides I’m a horrible owner and some of the thing he’s bumping into… are actually my fault.
On a serious note though, while you’re wiping paws and brushing fur and doing the many everyday people-slave tasks for your cat, you might as well add a quick eye check onto the list. A quirk in your cats evolution has somehow not given them the ability to get dirt and foreign objects out of their eyes and so in this area, if nothing else, you cat does grudgingly need your help.
So first check your cats eyes, eyelashes and eyelids, look for discharge, watering and crusty gunk and if necessary give them a quick, gentle wipe with a damp cloth to remove any dirt that might be hanging around. Then check your cats eye’s themselves, they should be clear, bright and the pupils should be the same size, any eye-goo, cloudiness, redness or the third eyelid being visible are all bad signs that you need to get your vet to investigate.
You can also monitor your cat’s vision when playing and just by watching your cat as it goes about its day. moving an object slowly in front of your cat is a good way to check their vision, if they watch it, or decide to play then you have nothing to worry about, if they show no interest at all then there may be something wrong. You can also check if their eyesight is still 100% by putting objects in pathways that your cat uses to walk around your house that are usually clear. If your cat avoids them, then everything is fine, if your cat bumps into them and then tries and fails to give you evils because they have pink-eye, laugh while you can because there will be reprisals. So worth it though.
For more on eye health WebMD have some really good advice.