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By Bill Sardi
Though the human eye is designed to receive light,
look at the elaborate protection from light designed into the eye:
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Eye
is recessed; its in a shadow |
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Eye
lashes |
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Eye
lids |
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Cornea
filters UVB rays (up to 320 nanometers) |
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Aqueous
fluid in the eye is rich in vitamin C and other antioxidants |
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Closure
of iris (pupil) upon exposure to light |
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Color
of iris (brown - melanin) blocks light |
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Adult
crystalline lens filters all UVA and UVB rays (up to 400 nanometers) |
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Lutein
and zeaxanthin protect central macula |
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Melanin
protects posterior retina |
Ott's work suggests
that UV is beneficial to eye health but
his work was done with animals, who have different filtering and spectral
sensitivities in their eyes. He also worked on flowers, but they are photosensitive
due to chlorophyll.
Humans don't have chlorophyll. There is a bit of truth
in Ott's work, in that visible light stimulates the retina and is required
for health of the adrenals. Removal of cloudy cataracts stimulates adrenal
glands and improves immunity in older adults.
Most of the health benefits
accrued to UV light are via the production of vitamin D in the skin, not
the eye.
Terrible
misconception by alternative doctors.
No UV Rays Even Reach
The Retina In Most Adult Eyes Since They Are Filtered By The Crystalline
Lens!
Exposure to more ocular UV rays just promotes more
cataracts and retinal degeneration.
Green wavelengths of light, not invisible UV rays,
are the most ideal for remedying Seasonal Affective Disorder/Winter depression
as evidenced by the first reference below.
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