If you suspect that your cat has keratitis, take him to the vet immediately. Leaving keratitis untreated can lead to severe eye damage which may result in blindness. Common symptoms of keratitis include swollen or irritated eyes, discharge from the eye, and discoloration of the eye. Though eye irritation might be due to multiple conditions, or caused by a variety of triggers, any eye problems in your cat should be seen by a vet. When you take your cat to the vet, the vet will perform a thorough physical exam. This usually includes checking the cat's temperature to rule out fever, listening to the chest, and looking at the tongue. Then the vet will check for complications in the eye, such as a corneal ulcer or glaucoma. Your vet will check to see if the cat has a more generalized respiratory infection, such as with herpes virus. To check for an ulcer, the vet puts drops of a special dye into the eye. The orange dye stains ulcers bright green. This is important to check since the treatment for keratitis can involve steroid drops, and steroids can make corneal ulcers worse. If the vet suspects glaucoma, then she will use a tonometer to check the pressure within the eye. This condition can mimic keratitis, but the treatment is different for glaucoma than keratitis. To rule any other reasons for keratitis, the vet may select other tests to run. This may include wiping a sterile swab over the surface of the eye and then sending the culture to check if there is a bacterial colony present which needs treatment. The vet may also run blood tests, checking the pet's general health and factors which may suppress the immune system, such as FeLV and FIV. These can prevent the natural defense mechanisms of the eye from reducing inflammation.
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One-sentence summary -- Take your cat to the vet. Get a physical examination. Run additional tests.

Q: One way to better understand your teen's smoking is to discuss reasons why they may be doing it. Sit down with them and ask them to reflect on why they may be smoking. Doing this may help both of you realize the motivations behind their smoking and possible get to the root cause. Determining the root cause of their smoking could then allow you to help them work on the issue and prevent them from smoking again. Have your teen write down their reasons for smoking as well as how they started smoking. Use the question, "Why do you think you are smoking?" as a writing prompt. Then, have them share their thoughts with you and discuss them together. Some teens are motivated to smoke because they watch their parents or other authority figures light up on a regular basis. They may then take up smoking out of curiosity or out of a desire to emulate their parents. If you, as a parent, have a smoking habit, you should consider quitting. This will allow you to practice what you preach and act as a role model for your teen. Quitting smoking can be a challenge, but let your teen know that you are willing to take it on so they do not end up smoking like you. You may then ask them to support you by not smoking as well. This way, you can both be there for each other as you both attempt to quit. If your teen is struggling to quit smoking or if you are worried your teen will develop a full on smoking addiction, you may reach out to professionals for help. It can difficult to stop smoking once you start, especially at a young age. You should try to support and help your teen by getting them professional help so they can learn how to stop smoking. You can contact an addiction counselor through the American Lung Association or your Department of Health. You may also want to talk to your family doctor and get a referral for an addiction therapist who has worked with teens before.
A: Ask your teen why they are smoking. Try to quit smoking, if you smoke. Get your teen professional help.

Article: If you use your broom to sweep up something particularly dirty or gross, clean it right away. Otherwise you should clean your broom heads about four times a year.
Question: What is a summary of what this article is about?
Clean your brooms every three months.