It is not reasonable to worry like that. Tooth extraction has no direct effect on your eyesight. Further speaking, tooth has no direct relation with eyes. Sometimes, eyes swell and hurt when people suffer toothache. That makes people feel like that tooth and eyes are tightly related and eyes will feel terrible when something happen to tooth. In fact, it is not. Even in many practical cases, people feel the two things at a same time. Most of toothache comes from trigeminal. When people suffer toothache, the feeling on the nerves of tooth will be transited to other facial nerves, so that it will arouse swelling and uncomfortable of cheek or eyes. Even through, it dose not damage to these nerves and organs. Only in one situation that eye sick and tooth sick may be related to each other. If there is inflammation at tooth nerves, it may cause inflammation on eye nerves and that will cause problems. In your case, you just go to have a tooth extraction. There is no necessary outcome of that. All you need to do is have profession doctor to do that.