Abstract:This article outlines the history and development of the first hydrophilic biocompatible plastic, called PHEMA. The story traces the notable leaders in its development and provides a timeline from the initial discovery of the hydrogel material to its evolution into the modern soft contact lens.
“…As for hydrogel materials poly (hydroxyethyl methacrylate) or pHEMA was invented in 1952 by Drahoslav Lim and Otto Wichterle for biological use (Grant et al, 2022). It was synthesized by polymerization using 2-hydroxyethyl methacrylate as raw material and triethylene glycol dimethacrylate as a cross-linking additive, and the hydrophilic behavior of HEMA is due to the presence of the hydroxyl group at the end of the monomer (Wichterle & Lim, 1960).…”
With the rapid development of technology, the use of different materials and device production for sharp vision has accelerated. One of the areas that benefit from developing technology is contact lens technology. In this study, the production-development stages of contact lenses, contact lens types, and materials used in production were investigated. The pros and cons of using lenses compared to glasses are stated. In addition, the advantages and disadvantages of the production types of contact lenses compared to each other were examined. In the last stage, studies and expectations for the future of contact lenses are discussed.
“…As for hydrogel materials poly (hydroxyethyl methacrylate) or pHEMA was invented in 1952 by Drahoslav Lim and Otto Wichterle for biological use (Grant et al, 2022). It was synthesized by polymerization using 2-hydroxyethyl methacrylate as raw material and triethylene glycol dimethacrylate as a cross-linking additive, and the hydrophilic behavior of HEMA is due to the presence of the hydroxyl group at the end of the monomer (Wichterle & Lim, 1960).…”
With the rapid development of technology, the use of different materials and device production for sharp vision has accelerated. One of the areas that benefit from developing technology is contact lens technology. In this study, the production-development stages of contact lenses, contact lens types, and materials used in production were investigated. The pros and cons of using lenses compared to glasses are stated. In addition, the advantages and disadvantages of the production types of contact lenses compared to each other were examined. In the last stage, studies and expectations for the future of contact lenses are discussed.
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