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Tear substitutes are used to treat dry eye syndrome. Shear-thinning should help to delay the appearance of dry spots and improve comfort. This article discusses a numerical model study of the spreading of shear-thinning tear substitutes during blinking. The Ellis model, which takes account of the Newtonian plateau at low shear rate, was chosen. Flow is governed by the capillary number Ca, the shear-thinning...
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