Dear Dr. Renukaprasad A R, Do you know hydroxypropyl-guar (HPG) is a natural polysaccharide that helps treat DED? HPG serves as a gellable lubricant that extends other demulcents' retention time, thereby protecting the ocular surface. Higher HPG concentrations in eye drops for DED patients result in improved distribution and less blurring upon instillation.
Read this article to further understand the benefits of HPG eye drops for managing DED! |
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