I'm not so certain that the issue is the definition of the term normal, so much as it is the value (positive or negative) or association (healthy vs. unhealthy) the term implies in a medical or social context.
One of the most common reasons for blurry vision while wearing contacts is that your eyes are dry. Some people have a medical condition that causes dry eyes, called dry eye syndrome, but others' eyes are irritated by the contacts themselves.
If you ever do get bleach in your eye, you will feel it. Rinse your eye with water and then seek care. If your eye is not red and swollen and your vision is not blurry, you did not have a significant exposure to bleach. If you start pouring water into your eye, it will turn red because water is hypotonic. Source(s):