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Objective: Testing the protein-removing effect of the protein-removing care solution on the protein precipitation of the soft contact lenses., Method: Soak the lenses into the artificial-tears to simulate the protein absorption, test the absorbency of cleaned protein at the wavelength of 280 nm by UV spectrophotometer, and compute the percentage of protein., Result: Testing results of the percentage of the cleaned protein are repeatable., Conclusion: This experimental method can be used to evaluate the cleaning effect of the protein- removing care solution, but still needs much improvements.