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Intraocular lenses, commonly called IOLs, may be one of the most important ophthalmic developments in the past 30 years. These tiny prescription lenses are placed inside the eye during cataract or Clear Lens Extraction And Replacement surgery (CLEAR), replacing the eye's natural lens (called a cataract when it becomes clouded).
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http://www.greenpowe rscience.com/
GREEN POWER SCIENCE STIRLING ENGINE AND A FRESNEL LENS 1800 RPMS. HAD TO STOP AS ENGINE HEAT SHAFT WAS GETTING TOO HOT.
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Full review at http://www.cameralab s.com/reviews/Pentax _40mm_70mm_lens/ : A six and a half minute tour around the incredibly slim Pentax DA 40mm and 70mm Limited Edition lenses by Gordon Laing, Editor of www.cameralabs.com. For complete results and sample images, please check out our full review by clicking the link at the start of this text.
