Entropion is a condition in which the eyelid margin turns in against the eyeball. Involutional or senile entropion is one of the most common lower lid malpositions in the elderly. The interventions described and currently used for the treatment of this condition are surgical in nature, although non-surgical temporary medical treatment for the early stages of entropion has also been reported. The relative effectiveness of these interventions has not yet been resolved.
Boboridis, K. G., & Bunce, C. (2011). Interventions for involutional lower lid entropion. Cochrane Database of Systematic Reviews. https://doi.org/10.1002/14651858.cd002221.pub2