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Ophthalmology, polymeric

Kimura H.-O.Y., Hashizoe, M., Nishiwaki, H., Honda, Y. and Ikada, Y. (1994) A new vitreal drug delivery system using an implantable biodegradable polymeric device. Investigative Ophthalmology and Visual Science, 35 2815-2819. [Pg.318]

This chapter addresses the application of polymeric biomaterials in the context of implantable devices intended for long-term functionality and permanent existence in the recipients. Basic concepts of biocompatibility as well as mechanical and structural compatibility are discussed to provide appropriate background for the understanding of polymer usage in cardiovascular, orthopedic, ophthalmologic, and dental prostheses. Furthermore, emerging classes... [Pg.310]

Table 19.1 summarizes some of the existing usage of polymeric biomaterials in a variety of implantable prostheses for cardiovascular, orthopedic, ophthalmologic, and dental applications. [Pg.313]

Another ophthalmologic application of polymeric prostheses is the artificial cornea or keratoprosthesis. This device has been developed for more than a century, starting with the work of Heusser who was the first to implant artificial corneas in patients in 1859 [189], However, it was not until after World War II that researchers noticed that PMMA particles were well tolerated in patient eyes [190]. Ever since, other polymeric materials such as nylon, PU, and PTFE... [Pg.319]

Another ophthalmologic application of polymeric biomaterials is the development of ocular prosthesis and biologically inspired compound eyes [197,198]. Such prostheses, commonly fabricated from porous polyethylene, are designed to serve as nonfunctional artificial substitutes for enucleated eyeballs [199]. [Pg.319]

PMMA and related acrylic and methacrylic polymers have seen wide application in medicine becairse of their low cost, straightforward polymerization initiation by free radical or anionic mechanisms, ease of processing, and generally inert qirality. Application areas include orthopedics, dentistry, controlled-release systems, cosmetics, and ophthalmology. However, there are many other applications of methacrylate and acrylate polymers in medicine, some with low levels of use and others under development at this time. PMMA is the most widely used of this family of polymers. PHEMA will be addressed separately below. [Pg.404]

Ophthalmologic soft contact lenses Silicone hydrogel Plasma-induced graft polymerization of MPC 52... [Pg.191]

PACAs are usually used in surgical adhesives [49], especially in ophthalmology [50-52]. Several PACAs-based nanoparticles, prepared by dispersed or interfacial polymerization, have been investigated as ODDS of a few drugs [53-55] such as the... [Pg.452]

Thus the modification of chitosan and hyaluronic acid allowed to obtain sustainable hydrogels on their basis it is permeable to water phase. Received hydrogels have bioeompatibility ant it is not toxic. In addition the introduction of functional groups in the used biopolymers contributes to the solution of the task immobilization of the MMC on the polymeric matrix that provides prolongation of this release from polymer witch is necessary the medical use in ophthalmology. [Pg.28]

The synthesis of the first water-absorbent polymer goes back to 1938, when AA and divinylbenzene were thermally polymerized in an aqueous medium. In the late 1950s the first generation of hydrogels appeared, mainly based on hydroxyalkyl methacrylate and related monomers, and with swelling capacity up to 40-50%. These hydrogels were used in the development of contact lenses that revolutionized ophthalmology. [Pg.72]


See other pages where Ophthalmology, polymeric is mentioned: [Pg.92]    [Pg.319]    [Pg.204]    [Pg.446]    [Pg.87]    [Pg.75]    [Pg.314]    [Pg.145]    [Pg.147]    [Pg.148]   


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