what are the symptoms if I am using incorrect power in my specs?!

Best Answer - Chosen by Voters

You will soon be blind.

Blurred or fuzzy vision, headaches and depending on if the difference in the power of the glasses you have and are suppose to have is high enough, you may even have nausea dizziness and vertigo. The itching may be from your eyes being irritated, which is common.

Hope this helps and all the best!

If your glsses are not ground correctly then you will notice that whenever you have them on. My guess is that you are suffering from eye strain from poor lighting more time on the computer or possibly allergy issues especially since you mention itching and blurred vision.

You may experience headaches, eyestrain, and blurry vision if your prescription is incorrect.