Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Soft contact lenses"”.
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Mechanics and materials issues in processing and flexibility of soft contact lenses
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Ocular biomaterials and the anterior eye
… that may influence ablation rate were explored, Soft contact lenses can be used as a probe to study the interaction between synthetic materials and the biological constituents of tears. This has lead to the development of many sensitive analytical techniques for protein and lipid deposition, one …
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Factors associated with soft contact lens replacement noncompliance of wearers in Windhoek
… and twenty five million people worldwide wear contact lenses (Barr, 2006). The contact lens market is increasing at an alarming rate globally and Namibia is no exception, but there are no known national statistics. Soft contact lens wearers do not comply to their specific lens replacement …
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Protein deposition at polymer surfaces:the bulk and surface structure-property effects of hydrogels
… (D.S.C.). Hamilton and captive air bubble-contact angle techniques were employed to characterise the hydrogel-water interface and from which by a mathematical derivation, the interfacial free energy (ðsw) and the surface free energy components (ð psv, ðdsv, ðsv) were obtained. From the …
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The mechanics of a hydrogel contact lens on the human eye with a lubricating tear layer
The mechanics governing the fit of a soft contact lens on the eye are examined through the development of a finite element analysis model. A linearly elastic lens is placed on a rigid eye with a lubricating viscoelastic tear layer. The mechanics of fit are described in terms of the pressure …
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Synthetic analogues of protein-lipid complexes
… encapsulated in hydrogels of the types used for soft contact lenses. Release studies were conducted to examine if this smart drug delivery system can retain such compounds and deliver them at a slow rate over a prolonged period of time.
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The friction coefficient of soft contact lens surfaces in relation to comfort and performance
The soft contact lenses of today are made from a variety of hydrogel materials. These materials have different properties in terms of water content, monomers, hardness and other tensile characteristics. It is likely that the frictional properties also vary between materials. It is known that …
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Improving hydrophilicity of silicone elastomer by IPN formation with hyaluronan
Soft contact lenses have been available to consumers for the past several decades. By far, the most popular form on the market today is the silicone hydrogel, with nearly 70% of the market share. However, many contact lens wearers still have issues which cause them to discontinue lens use. It is …