If the head is hit, why it seems that the stars in the sky shining?

Stars can be seen at night if the sky is clear. But if you hit your head, you can see the stars burning even during the day. It seems as if the eyes were burned by the light of the flash light. Again, various stars can be seen floating in the void around. This is probably the same as seeing mustard flowers. Everyone has this experience more or less. But why do we have such an experience when we get hurt in the eyes or head?

In fact, light from outside is reflected on objects and enters our eyes. In other words, it passes through the lens of our eye and falls on the retina at the back. There are millions of light-sensing cells in the retina. This cell is divided into two parts called Rod and Cone. Rod cells function to see at night or in the dark. And some cells work better during the day or in bright light. However, the light that falls on the retina is converted into waves and reaches our brain as a signal. However, when the inverted reflection is read on the retina, we see a straight image of the object due to unknown reasons. This is how we see an object.

The optic nerve carries this signal from the eye. Much like internet cable. But if there is a strong injury to the eye or the head, the optic nerve cannot do its job properly. This prevents the signal from reaching the brain. As a result, this signal is transformed into a strong light that dazzles our eyes for some time. As a result we see stars burning all around.