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TEAR‐FILM DYNAMICS AND OXYGEN TENSION LUNDER A CIRCULAR CONTACT LENS

 

作者: P. ALLAIRE,   S. ALLISON,   A. GOORAY,  

 

期刊: American Journal of Optometry and Physiological Optics  （OVID Available online 1977）
卷期: Volume 54, issue 9  

页码: 617-626

 

ISSN:0093-7002

 

年代: 1977

 

出版商: OVID

 

关键词: tear film;oxygen;cornea;swelling;contact lens;dynamics;lubrication theory;calculations

 

数据来源: OVID

 

摘要:

The cornea requires a minimum level of oxygenation; this may De prevented by a contact lens, and corneal swelling and other undesirable effects may result. By employing thin-film lubrication theory, this study derives analytical solutions for the tear-film velocity components and pressure under a circular contact lens. Oxygen-tension contours are then obtained for various values of squeeze action and parallel motion of the lens.

 

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