Exchange of Tears under a Contact Lens Is Driven by Distortions of the Contact Lens
We studied the flow of the post-lens tear film under a soft contact lens to understand how the design parameters of contact lenses can affect ocular health. When a soft contact lens is inserted, the blinking eyelid causes the lens to stretch in order to conform to the shape of the eye. The deformed...
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Published in | Integrative and comparative biology Vol. 54; no. 6; pp. 1043 - 1050 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
England
Oxford University Press
01.12.2014
Oxford Publishing Limited (England) |
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Abstract | We studied the flow of the post-lens tear film under a soft contact lens to understand how the design parameters of contact lenses can affect ocular health. When a soft contact lens is inserted, the blinking eyelid causes the lens to stretch in order to conform to the shape of the eye. The deformed contact lens acts to assume its un-deformed shape and thus generates a suction pressure in the post-lens tear film. In consequence, the post-lens tear fluid moves; it responds to the suction pressure. The suction pressure may draw in fresh fluid from the edge of the lens, or it may eject fluid there, as the lens reassumes its un-deformed shape. In this article, we develop a mathematical model of the flow of the post-lens tear fluid in response to the mechanical suction pressure of a deformed contact lens. We predict the amount of exchange of fluid exchange under a contact lens and we explore the influence of the eye’s shape on the rate of exchange of fluid. |
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AbstractList | We studied the flow of the post-lens tear film under a soft contact lens to understand how the design parameters of contact lenses can affect ocular health. When a soft contact lens is inserted, the blinking eyelid causes the lens to stretch in order to conform to the shape of the eye. The deformed contact lens acts to assume its un-deformed shape and thus generates a suction pressure in the post-lens tear film. In consequence, the post-lens tear fluid moves; it responds to the suction pressure. The suction pressure may draw in fresh fluid from the edge of the lens, or it may eject fluid there, as the lens reassumes its un-deformed shape. In this article, we develop a mathematical model of the flow of the post-lens tear fluid in response to the mechanical suction pressure of a deformed contact lens. We predict the amount of exchange of fluid exchange under a contact lens and we explore the influence of the eye's shape on the rate of exchange of fluid. |
Author | Maki, Kara L. Ross, David S. |
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CitedBy_id | crossref_primary_10_1016_j_clae_2021_02_008 crossref_primary_10_1093_icb_icu113 crossref_primary_10_1016_j_heliyon_2023_e16916 crossref_primary_10_1016_j_jconrel_2022_02_014 crossref_primary_10_1007_s00417_024_06400_5 crossref_primary_10_1137_15M1036865 crossref_primary_10_14479_jkoos_2017_22_3_213 crossref_primary_10_1080_17469899_2023_2259613 |
Cites_doi | 10.1097/OPX.0b013e3181d9519b 10.1167/iovs.13-13235 10.1167/iovs.02-0377 10.1021/ie000596z 10.1115/1.555403 10.1076/ceyr.22.2.102.5521 10.1006/jcis.2001.8008 10.1167/iovs.11-7177 10.1146/annurev-fluid-120710-101042 10.1142/S021833901440004X 10.1167/iovs.10-6507 10.1016/S0002-9394(99)00051-3 10.1097/00006324-197603000-00001 10.1016/S1542-0124(12)70612-2 10.1080/02713680490516099 10.1016/S1542-0124(11)70007-6 10.1167/iovs.12-11354 10.1007/s10665-011-9482-4 10.1103/RevModPhys.69.931 |
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SubjectTerms | Body fluids Contact lenses Contact Lenses, Hydrophilic Eyes & eyesight Humans Hydrodynamics Models, Theoretical Pressure Shaking, Dripping, and Drinking: Surface Tension Phenomena in Organismal Biology Tears - chemistry |
Title | Exchange of Tears under a Contact Lens Is Driven by Distortions of the Contact Lens |
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