Sixth nerve palsy simply means paralysis of the sixth cranial nerve. What causes it, and can it be fixed? My dad is about to find out.
It's not a common side effect, but it's yet another addition to a long list of reasons not to see a chiropractor.
The neurotransmitter dopamine -- which is most famously associated with the "reward system" in the brain -- is also linked to eye blink rate and time perception, both of which are in constant flux. Immediately after a blink, time is perceived to go by a little more slowly.
Have you ever heard someone (OK, your mom) say, "Don't sit too close to the TV, you'll hurt your eyes!" or "Don't read in the dark, you'll strain your eyes!" and "Eating carrots will improve your vision!" Are any of these true?
Although we can't sense it, our eyes are constantly moving even when we are staring at an unchanging image. These are not just random "jitters," since they serve to increase visual acuity and compensate for head movements.