Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector649410.17750/KMJ2017-412Research ArticleThe method of eyeglass lenses processing and a device for its performingShishkinA Vanastasiya199212@yandex.ruKorepanovA Vanastasiya199212@yandex.ruPetrovA Vanastasiya199212@yandex.ruAkhkiyamovaA Vanastasiya199212@yandex.ruIzhevsk State Agricultural AcademyIzhevsk State Medical Academy0506201798341241405062017Copyright © 2017, Shishkin A.V., Korepanov A.V., Petrov A.V., Akhkiyamova A.V.2017<p><strong>Aim.</strong> To develop an inexpensive and efficient method of increasing the hydrophilicity of the lens surface and a device for its implementation. </p>
<p><strong>Methods.</strong> 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. </p>
<p><strong>Results.</strong> 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. </p>
<p><strong>Conclusion.</strong> 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.</p>lensesgas discharge procesinghydrophilic surfaceлинзыгазоразрядная обработкагидрофильная поверхность[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.]