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One Miraculous Organ
By Frances Maguire Paist, Staff Writer
(Page 3 of 3)
The extra ocular muscles are six tiny
muscles that surround the eye and control its movements.
The four rectus muscles control the up, down, left and
right movements of the eye, and the two oblique muscles
control the inward and outward movements.
Tear film is produced by tiny glands that surround the
eye. Comprised of three layers (oil, water and mucous),
the lower mucous layer serves as an anchor for the tear
film and helps it adhere to the eye. The middle layer is
comprised of water. The upper oil layer seals the tear
film and prevents evaporation. Tear film keeps the eye
moist, provides a smooth surface for light to pass
through the eye, nourishes the front of the eye and
provides protection from injury and infection.
That’s it. Eyenatomy 101, a working knowledge of one of
life’s greatest miracles. From the very beginning, when
an object is in the line of sight, through the
incredible process where light rays are reflected from
the object to the cornea, the light rays are bent,
refracted and focused by the cornea, lens, and vitreous,
the rays come to a sharp focus on the retina, light rays
are converted to electrical impulses and transmitted
through the optic nerve to the brain where the image is
perceived, it’s an astonishing journey of possibility.
Truly an amazing grace.
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