Estimation of contact lens friction coefficient: The need for a protocol

Costa, D. and Cascione, M. and Treso, F. and De Matteis, V. (2023) Estimation of contact lens friction coefficient: The need for a protocol. Il nuovo cimento C, 46 (5). pp. 1-4. ISSN 1826-9885

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Contact lens discomfort (CLD) is a sporadic or frequent condition that affects millions of contact lens users worldwide. The experience of the contact lenses (CLs) wearers is strongly influenced by many factors, among these the physical properties of lens materials. Especially, the friction coefficient (CoF) plays a critical role in the balance between lenses and ocular environment. The aim of our study is to quantify the CoF for different CLs by means of a nano-tribometer. Three experiments were performed following protocols already published in the literature, in order to evaluate the CoF dependance on testing parameters, such as sliding speed, applied normal force and number of sliding cycles. Our results identify a lack in the reproducibility of already published experiments and the necessity to identify a measuring standardized protocol.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 15 Mar 2024 15:37
Last Modified: 15 Mar 2024 15:37

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