Vision getting worse?

Question

k i have contacts i dont where them all the time but most of the time sometimes i feel i see great or its terrible or i c just as good as with my contacts in as with them out is this bad y does my vision change like this

Answer 1

If you are far-sighted and young, you may have periods of time where you feel you can see just as well with as without the contacts.  This is because you can focus through the far-sightedness when you have plenty of strength.  If you are tired, you have less ability to do this.  Just because you can perform the task alone, doesn't mean you should because you may be working four times harder to achieve the task.  This is just one possibility.  There are other explanations for your question, so you should see your eye doctor to find out.