Look at
the structure of our eyes and how they are working, we don’t know their working
system though these are our organs.
The cornea
focuses light onto a light-sensitive membrane called the retina. The cornea is
a transparent structure found in the very front of the eye that helps to focus
incoming light. Situated behind the pupil is a colorless, transparent structure
called the crystalline lens. A clear fluid called the aqueous humor fills the
space between the cornea and the iris.
"The
cornea focuses most of the light, then it passes through the lens, which
continues to focus the light.
Behind
the cornea is a colored, ring-shaped membrane called the iris. The iris has an
adjustable circular opening called the pupil, which can expand or contract to
control the amount of light entering the eye.
Ciliary
muscles surround the lens. The muscles hold the lens in place but they also
play an important role in vision. When the muscles relax, they pull on and flatten
the lens, allowing the eye to see objects that are far away. To see closer
objects clearly, the ciliary muscle must contract in order to thicken the lens.
The
interior chamber of the eyeball is filled with a jelly-like tissue called the
vitreous humor. After passing through the lens, light must travel through this
humor before striking the sensitive layer of cells called the retina.
The
retina
Retina
is the innermost of three tissue layers that make up the eye. The outermost
layer, called the sclera, is what gives most of the eyeball its white color.
The cornea is also a part of the outer layer.
The
middle layer between the retina and sclera is called the choroid. The choroid
contains blood vessels that supply the retina with nutrients and oxygen and remove
its waste products.
Embedded in the retina
are millions of light sensitive cells, which come in two main varieties: rods
and cones.
Rods
are used for monochrome vision in poor light, while cones are used for color
and for the detection of fine detail. Cones are packed into a part of the
retina directly behind the retina called the fovea, which is responsible for
sharp central vision.
When
light strikes either the rods or the cones of the retina, it's converted into
an electric signal that is relayed to the brain via the optic nerve. The brain
then translates the electrical signals into the images and a person sees.
If you look at the face of
your friend just for few second, hundreds of billions of processes take place
in your eye. In the case of visual perception, the brain tracks the millions of
signals coming from the retina in order to assemble and update a dynamic model
of the spatial structure of the environment. This model is inferred from light
patterns hitting the 100 million photoreceptors in the retina of the eye. By
the time the visual signal gets to the brain, it has already gone through
multiple layers of neural circuit processing and been reduced to 1 million
fibers in the optic nerve, each corresponding to something like a
"pixel" in a digital photograph.
These are our eyes
but we don’t know their system. We even don’t know crystalline
lens, pupil, aqueous humor, cornea, iris, ciliary muscles, vitreous
humor, retina, sclera, rods and cones, electric signal, optic
nerve etc. We also don’t know hundreds of billions of processes take place in our
eyes just in few seconds.
Have those been created automatically? And they have come in existence by coincidence.
Clearly, random
events, human beings and technology cannot produce such an astonishing work.
This fact has been scientifically proven. This amazing work in our bodies
belongs to Allah, Whose might makes all things according to His will
Allah has created this complex system of eyes.
Allah maintains countless balances in our body at ever second, without our ever being aware of them.
We must be grateful to him every day, at every moment.
الله سبحانه وتعالى
الله سبحانه وتعالى
