Titlebook: Lens Implantation; 30 Years of Progress P. Leonard,J. Rommel Book 1982 Belgian Society of Ophthalmology, Leuven, Belgium and Dr W. Junk Pub

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Book 1982 of intraocular lens surgery including details of the design, optics chem­ istry and sterilization of intraocular lenses. Its value is enhanced by excellent illustrations and extensive tabulated references to the litera­ ture. Accounts of patient acceptability are balanced against candid discus­ sio

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Materials, Manufacture, and Sterilization,replace glass because of its “unbreakability” and because it could be shaped when warm. In Germany it was called “plexiglas” and in England, “perspex”. The original Ridley lens remains the prototype for lenses made entirely of PMMA, since it was machined from a solid piece of PMMA.

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The Optics of Intraocular Lenses,optical portion of nearly all of the other lenses are planoconvex, with the radius varying according to their power. Almost all lenses are made of polymethylmethacrylate, which has a refractive index of around 1.49. The thickness at the optic center varies from some 0.4 mm to 0.9 mm.

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Lens Implantation and Cystoid Macular Edema,veral years, with the peak incidence being between the first and the third month after surgery. S.R. Irvine (1953) first drew attention to this syndrome and studied the associated modifications of the vitreous, and J.D. Gass and E.W. Norton (1966) described the biomicroscopic and angiographic characteristics.

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History, concluded that Tadiny had yet actually to implant a lens. According to R. Marx (1970), Tadiny must have been a rather well-known healer also in our country, since he had placed advertisements in the . in 1788, 1791, and 1792.