Cleaning and liquid contact with solids – Processes – Combined
Reexamination Certificate
2007-09-18
2007-09-18
EL-Arini, Zeinab (Department: 1746)
Cleaning and liquid contact with solids
Processes
Combined
C134S042000, C422S028000, C422S050000, C422S051000, C422S068100, C422S070000, C422S089000, C510S112000
Reexamination Certificate
active
11223832
ABSTRACT:
It is intended to provide a method of selecting a contact lens suitable for a wearer and/or a care system therefor, by which the occurrence of problems (for example, worsening in the feel during wearing, lowering in the oxygen permeability of the lens, shortening in the lens life, lowering in the visual acuity, corneal injury, etc.) can be minimized to thereby ensure a high safety for the eye, namely, a method which comprises collecting the lacrimal fluid of a wearer, detecting the protein content and/or the lipid content in the lacrimal fluid thus obtained (Step S5), estimating the dirt adhesion characteristics of the wearer to a contact lens based on the protein content and/or lipid content thus detected, and then selecting a contact lens suitable for the wearer and/or a care system therefor from among a plurality of contact lenses and a plurality of care systems (Step S6).
REFERENCES:
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Baguet, PhD, Joël, et al. “Normal Protein and Glycoprotein Profiles of Reflex Tears and Trace Element Composition of Basal Tears from Heavy and Slight Deposits on Soft Contact Lenses”, the CLAO Journal, Apr. 1995, vol. 21, No. 2, pp. 114-121.
Rebeix, V., et al., “Artificial tear adsorption on soft contact lenses: methods to test surfactant efficacy”, Biomaterials 21 (2000), pp. 1197-1205.
Mirejovsky, Dorla, et al., “Lipid Adsorption onto Hydrogel Contact Lens Materials. Advantages of Nile Red over Oil Red O in Visualization of Lipids”, Optometry and Vision Science, American Academy of Optometry, 1991, vol. 68, No. 11, pp. 858-864.
“How Your Contact Lenses Are Selected” <URL:http://www.menicon.co.jp/first/lens.html>, retrieved online on Aug. 23, 2002.
Kawai Tetsuji
Nakada Kazuhiko
Ohno Sadanori
Suzuki Hiroaki
Burr & Brown
EL-Arini Zeinab
Menicon Co. Ltd.
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