Castor Oil in Artificial Tear Reduces Evaporation; Helps Dry Eye Sufferers

Researchers from the Optometric Technology Group in London have found that an eye drop containing castor oil and demulcents was associated with a reduction in tear film evaporation rate and increase in ocular comfort.

The castor oil was detected in the basal tear after 30 days of use and at least 3 hours after the last eye drop instillation.Researchers conducted a prospective bilateral evaluation of evaporative dry eye sufferers using Refresh Optive Advanced (Allergan) for 1 month. Results showed that a detectable amount of castor oil in the tear samples was associated with a lower evaporation rate at 30% [low] relative humidity.

Read more: http://www.healio.com/optometry/cornea-external-disease/news/print/primary-care-optometry-news/%7B46c51a6a-bfc0-48e5-9c90-09a88e3070d8%7D/study-shows-castor-oil-in-artificial-tear-decreases-evaporation-increases-comfort