When we talk of “blind spots,” we always think of driving with an area of the road not visible through the rear-view or side-view mirrors. But there is another kind of blind spot that all humans have in each eye. These blind spots are natural, and we are not even aware of them because the brain fills in the gaps in our vision, based on whatever information it has about what our eyes are looking at.
If you’re interested in the science behind this phenomenon, it’s this:
Light enters the eye by passing through the pupil and hitting the retina at the back. The retina is encased in light-sensing proteins, which transmit what they sense to the optic nerve. The optic nerve, in turn, relays that message to the brain. The blind spots occur because the optic nerve ends in the field of the retina itself. Whatever shortfall there is about visual information, the brain fills in by looking at the surrounding picture, and as a result, we are never conscious of the existence of blind spots as we go about our day-to-day lives.
But they’re there alright, and you can test your own blind spot by looking at the images below:
Now let’s try the same exercise with the new image below.
The brain’s habit of using surrounding visual information to make up for a missing piece in the picture is even more apparent with this third image.
Your vision may be more affected by blind spots than you realize! To learn more and discuss your options for vision correction, schedule a free consultation with the specialists at LASIK of Nevada today!