Human vision has always been one of the most intriguing topics for biologists and a recent experiment conducted on human eyes revealed that our eyes have an inbuilt night vision capability. Interesting, right?
To make this experiment happen, first the eyes of mouse were examined under a light microscope fit with night vision eyepiece, scientists discovered that their retinal cells were responsive to the lowering of light. Now we know human eyes are already equipped with rods and cons that are responsible for sensing color and light intensity, but it has been found that cells can actually change their shape according to the light intensity. It is officially proven that cells change their structure while observing stars, moonlight or anything at night/in darkness and adapt to different light intensities and conditions.
In the experiment conducted on the eyes of mice, with conditions specified as above, the cells sensitive to upward movement were found sensitive to low light. These neurons are triggered at any kind of motion, not only the upward motion. They send a motion signal along with other motion sensing cells in lowest light possible, and senses the change in surrounding atmosphere. So according to the entire research conducted and published in the Neuron journal, the modification occurs in the retinal cells sensitive to motion, as the sense of motion is as important as the sense of light. And as every motion needs a frame of reference to be studied, our eyes have four types of motion sensing retinal cells i.e. cells for sensing up, down, right and left motion accounting for about 4% of motor cells.
This finding has revealed that why do some people lose the sense of motion when a severe vision loss occurs and hence, gives out more ideas for retinal transplants and other eye surgeries. One of the researchers said, “To see under starlight, biology has had to reach the limit of seeing an elementary particle from the universe, a single photon.” This is the power of our Creator.