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.
Some contact lenses are better for people who tend to have dryer eyes than others. If you tend to experience dryness, ask your eye doctor about other contact lens options. Contact lens-related dryness also tends to get worse as the lenses get older, so be sure to replace your lenses as recommended.ome common reasons for your vision to be blurry, cloudy, or hazy in your contacts are: 1. Deposits on the contact lens. 2. Dryness of the contact or the eyes. 3. Movement or rotation of the contact lens. 4.