The method of eyeglass lenses processing and a device for its performing
- Authors: Shishkin AV1, Korepanov AV1, Petrov AV1, Akhkiyamova AV2
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Affiliations:
- Izhevsk State Agricultural Academy
- Izhevsk State Medical Academy
- Issue: Vol 98, No 3 (2017)
- Pages: 412-414
- Section: New technologies in ophthalmology
- URL: https://kazanmedjournal.ru/kazanmedj/article/view/6494
- DOI: https://doi.org/10.17750/KMJ2017-412
- ID: 6494
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Abstract
Aim. To develop an inexpensive and efficient method of increasing the hydrophilicity of the lens surface and a device for its implementation.
Methods. To implement the claimed method, a gas discharge device was created. Processing of glasses with plastic lenses in a high-frequency gas discharge (cold plasma) was performed in 47 myopes and 43 hypermetropes. Gas discharge was generated under the following conditions: 1 MHz, 10-20 W, pressure of 0.3-0.01 mm Hg. Processing was carried out for 30-900 seconds. As a result hydrophilic properties of the lens surface were observed in all processed lenses.
Results. On the surface of the lenses a large number of hydrophilic functional groups are formed so during water vapour condensation the formation of a water film occurs instead of forming microdrops. Thus, transparency of the lenses is not disturbed. The hydrophilic properties of the lens surface was maintained in an average for 3-4 weeks. Gas discharge eyeglass lens processing provides a long-term effect of eyeglass lens unsteaming, mechanical stability and safety of the surface, reliable exploitation of the glasses.
Conclusion. We have proposed a fundamentally different way of physical-chemical modification of the lens surface, which is not inferior to existing methods but produces significantly better results.
Keywords
About the authors
A V Shishkin
Izhevsk State Agricultural Academy
Author for correspondence.
Email: anastasiya199212@yandex.ru
Izhevsk, Russia
A V Korepanov
Izhevsk State Agricultural Academy
Email: anastasiya199212@yandex.ru
Izhevsk, Russia
A V Petrov
Izhevsk State Agricultural Academy
Email: anastasiya199212@yandex.ru
Izhevsk, Russia
A V Akhkiyamova
Izhevsk State Medical Academy
Email: anastasiya199212@yandex.ru
Izhevsk, Russia
References
- Критинина С.В. Конспект лекций по курсу «оптические материалы и технологии». Учебное пособие. Новосибирск: Институт оптики и оптических технологий. 2002; 134 с.
- Сивухин Д.В. Общий курс физики. Учебное пособие для вузов. В 5 т. Т. 3. «Электричество». М.: ФИЗМАТЛИТ; Изд-во МФТИ. 2004; 3: 656 с.
- Лисичкин Г.В., Фадеев А.Ю. Химия привитых поверхностных соединений. М.: ФИЗМАТЛИТ. 2003; 592 с.
- Фромм Р. Плазменная обработка поверхности контактных линз: в каких случаях и для чего? Вестн. оптометрии. 2010; (3): 54-58.