Fisheye lens - Wikipedia, the free encyclopedia
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In photography, a fisheye lens is a wide-angle lens that takes in an extremely wide, hemispherical image. Originally developed for use in meteorology to study cloud formation and called " whole-sky...
en.wikipedia.org/wiki/Fisheye_lens
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The lens is the clear part of the eye behind the iris that helps to focus light on the retina. The lens helps to focus on both far and near objects so that they are perceived clearly and sharply.
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www.yorku.ca/eye/lens.htm
www.yorku.ca/eye/lens.htm
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Crystalline lens - Eye anatomy ... The crystalline lens is located just behind the iris. Its purpose is to focus light onto the retina. The nucleus, the innermost part of the lens, is surrounded by softer material called the cortex. The lens is encased in ... An illustrative guide to the parts and functions of the human eye.
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www.stlukeseye.com/Anatomy/Lens.asp
www.stlukeseye.com/Anatomy/Lens.asp
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Soft lenses. These flexible lenses contain a high percentage of water to make them feel more comfortable than rigid lenses. In addition, they allow oxygen to pass through, are less likely to fall out of the eye than other lens types, and are less likely to cause sensitivity to light.
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www.medicinenet.com/contact_lens_products/article.htm
www.medicinenet.com/contact_lens_products/article.htm
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Purchasing specialty lenses for your camera can be costly, especially when they're really only good for one style of photo. Stick to your traditional lens and utilize a peep-hole to create a fish-eye effect without the extra cost. ... How to make a fish eye lens for a Nikon D-90 Digital SLR for $16 [Instructables via Zedomax]
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lifehacker.com/5407702/make-a-detachable-fish-eye-lens-...
lifehacker.com/5407702/make-a-detachable-fish-eye-lens-adapter-on-the-cheap
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Coloboma of eye lens information including symptoms, diagnosis, misdiagnosis, treatment, causes, patient stories, videos, forums, prevention, and prognosis. ... Symptoms of Coloboma of eye lens...
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www.wrongdiagnosis.com/c/coloboma_of_eye_lens/intro.htm
www.wrongdiagnosis.com/c/coloboma_of_eye_lens/intro.htm
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The lens of your eye is a double convex lens. Its job is to focus the image on the retina of the eye. If one is farsighted, the lens in the eye causes the focus to be behind the retina. These people see far but have some difficultly seeing close-up.
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www.mysciencesite.com/optics4.html
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The lens of the eye is normally clear. If the lens becomes cloudy or is opacified it is called a cataract. ... Updated by: Manju Subramanian, MD, Assistant Professor in Ophthalmology, Vitreoretinal Disease and Surgery, Boston University Eye Associates, Boston, MA. Review provided by VeriMed Healthcare Network.
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www.nlm.nih.gov/medlineplus/ency/imagepages/8785.htm
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