Study of the frictional behavior of soft contact lenses by an innovative method

被引：12
作者：
Carvalho, A. L. [1 ]
Vilhena, L. M. [1 ]
Ramalho, A. [1 ]
机构：
[1] Univ Coimbra, Ctr Mech Engn Mat & Proc, CEMMPRE, Rua Luis Reis Santos, P-3030788 Coimbra, Portugal
来源：
TRIBOLOGY INTERNATIONAL | 2021年 / 153卷 / 153期
关键词：
Biotribology; Physics of friction; Everyday life tribology; Soft contact lenses;
D O I：
10.1016/j.triboint.2020.106633
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Understanding the Biotribology involved between contact lenses and the eye, namely the friction between the eyelid and the surface of the contact lens during the blink movement, is a crucial factor in avoiding irritation, discomfort and other eye infections. The aim of the present research work is to investigate the tribological behavior of different soft contact lenses under different contact conditions. Since there is no commercially available equipment, a tribometer has been developed for this purpose, which operates with vibration horizontal movement. The friction assessment method is based on the evaluation of the free damping vibration movement, of the mass - spring system. This technique proved to have adequate sensitivity for the biologically relevant conditions, light normal load, high speed and hydrodynamic lubrication.
引用
收藏
页数：7
相关论文
共 17 条
  • [1] Dual characterization of boundary friction thanks to the harmonic tribometer: Identification of viscous and solid friction contributions
    Belin, M.
    Kakizawa, M.
    Rigaud, E.
    Martin, J. M.
    [J]. INTERNATIONAL CONFERENCE ON SCIENCE OF FRICTION 2010 (ICSF2010), 2010, 258
  • [2] Lubricity of Surface Hydrogel Layers
    Dunn, Alison C.
    Uruena, Juan Manuel
    Huo, Yuchen
    Perry, Scott S.
    Angelini, Thomas E.
    Sawyer, W. Gregory
    [J]. TRIBOLOGY LETTERS, 2013, 49 (02) : 371 - 378
  • [3] Biotribology
    Jin, ZM
    Stone, M
    Ingham, E
    Fisher, J
    [J]. CURRENT ORTHOPAEDICS, 2006, 20 (01): : 32 - 40
  • [4] High-speed camera characterization of voluntary eye blinking kinematics
    Kwon, Kyung-Ah
    Shipley, Rebecca J.
    Edirisinghe, Mohan
    Ezra, Daniel G.
    Rose, Geoff
    Best, Serena M.
    Cameron, Ruth E.
    [J]. JOURNAL OF THE ROYAL SOCIETY INTERFACE, 2013, 10 (85)
  • [5] Mann A, 2016, WOODH PUBL SER BIOM, V112, P45, DOI 10.1016/B978-0-08-100147-9.00003-1
  • [6] Nairn JA, 1995, P ANTEC, P95
  • [7] Friction coefficient of soft contact lenses: measurements and modeling
    Rennie, AC
    Dickrell, PL
    Sawyer, WG
    [J]. TRIBOLOGY LETTERS, 2005, 18 (04) : 499 - 504
  • [8] An original dynamic tribotest to discriminate friction and viscous damping
    Rigaud, Emmanuel
    Perret-Liaudet, Joel
    Belin, Michel
    Joly-Pottuz, Lucille
    Martin, Jean-Michel
    [J]. TRIBOLOGY INTERNATIONAL, 2010, 43 (1-2) : 320 - 329
  • [9] Friction Measurements on Contact Lenses in Their Operating Environment
    Roba, M.
    Duncan, E. G.
    Hill, G. A.
    Spencer, N. D.
    Tosatti, S. G. P.
    [J]. TRIBOLOGY LETTERS, 2011, 44 (03) : 387 - 397
  • [10] In vitro friction testing of contact lenses and human ocular tissues: Effect of proteoglycan 4 (PRG4)
    Samsom, M.
    Chan, A.
    Iwabuchi, Y.
    Subbaraman, L.
    Jones, L.
    Schmidt, T. A.
    [J]. TRIBOLOGY INTERNATIONAL, 2015, 89 : 27 - 33
12