In Physics of Fluids, Vega et al. researched human tears at the micron level to reveal new ways of customizing artificial tears to address individual symptoms of dry eye disease. The detailed insights they gained about the composition and behavior of tears could also apply to the study of ocular pathogens as well as other biological fluids. The authors collected healthy human tears and tested 10 different formulations of artificial tears and applied microrheology methods using dynamic light scattering.
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