how do blind spots work?

At the back of your eye within is a collection of cells call the retina that are sensitive to light. They cover the majority of the final half of the eye, except for an nouns called the "blind spot". This is the point at which adjectives the nerves that carry information from the retina out of the eyes and towards the brain. Because this nouns is dense with nerves within are no photosensitive cells.
It is significant to note that you cannot sense your blind spot directly, ie. you do no own a black hole in the corral of vision. This is for two reason. First, the area surrounded by your blind spot for one eye is clearly visible by your other eye. This process the blind spots never overlap as long as both your eyes are open. Second, after the nerves make tracks the eyes they enter a part of your brain that processes the information. At this point your brain "fills" contained by the blind spot so it is not noticeable to you!
In respectively eye, there is a spot at the rear of your eye where the optic backbone passes though to the brain. There are no cones or rods at this point, which medium that it is a blind spot.
Blind spots don't "work". That's why they are called blind spots.