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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This particular book contains chapters focused on Corrective lenses, and Contact lenses.
More info: A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (near-sightedness) requires a divergent lens, whereas hyperopia (far-sightedness) requires convergent lens.
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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This particular book is a collaboration focused on Corrective lenses.
More info: A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (near-sightedness) requires a divergent lens, whereas hyperopia (far-sightedness) requires convergent lens.
Read more...
List Price:
$22.75
Price: $17.75
You Save: $5.00 (22%)
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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This particular book is a collaboration focused on Optometry.
More info: Optometry is a health care profession concerned with eyes and related structures, as well as vision, visual systems, and vision information processing in humans, optometrists are also qualified to diagnose and treat eye diseases such as infections and glaucoma.
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Price: $13.07
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Hephaestus Books represents a new publishing paradigm, allowing disparate content sources to be curated into cohesive, relevant, and informative books. To date, this content has been curated from Wikipedia articles and images under Creative Commons licensing, although as Hephaestus Books continues to increase in scope and dimension, more licensed and public domain content is being added. We believe books such as this represent a new and exciting lexicon in the sharing of human knowledge. This particular book is a collaboration focused on Contact lenses.
More info: A contact lens (also known simply as a contact) is a corrective, cosmetic, or therapeutic lens usually placed on the cornea of the eye. Leonardo da Vinci is credited with describing and sketching the first ideas for contact lenses in 1508, but it was more than 300 years later before contact lenses were actually fabricated and worn on the eye. Modern soft contact lenses were invented by the Czech chemist Otto Wichterle and his assistant Drahoslav Lím, who also invented the first gel used for their production.
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CRITICBIGOT.COM: o2 optix
by Critic
The news is out. Contact lens wearers with busy, daylong activities
can now enjoy finding new freedom and confidence with O2 Optix .
In
the past, insufficient oxygen flow to the eyes--related to materials in
the manufacture of many contact lenses--caused redness, irritation, and
dryness before the day was done. Any enjoyment of lengthy activities
was marred by having to switch out of contacts and/or wear glasses.
Recently,
all that has changed thanks to the introduction of silicone hydrogels.
These innovative materials have allowed contact lenses to be made with
an amazing improvement in the rate of oxygen flow to the eyes. Among
these lenses is Ciba Vision's O2 Optix, rapidly becoming popular among
soft contact wearers who have been looking for that safe 'all-day' lens.
...
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Just opened the box of O2