The
visual system consists of the eyes, accessory structures and sensory neurons.
We obtain much of our information about many things through the visual system. Each
parts of the eye has its functions.
There
are also functions of the eye like the light refraction and focusing Images on
the retina. The important characteristic of light is that it can be bended or refracted.
Light that passes through a concave surface diverges while light passing through
a convex surface surges. The converging light rays cross at the focal point and
are said to be focused.
The activity
that we did in vision is the dissection of the cow’s eye. The cow’s eye is somehow
similar to the human eye. In dissecting the eye, we saw the different parts of
it like the optic nerve, pupil, lens, cornea and many more. We also used the
lens of the cow’s eye and placed it on a paper with letters. When we placed it,
the letters or the text became big and the lens of the cow looks like a
magnifying lens.
Here are some pictures from the activity:
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