Influence of Perfluorohexyloctane Eye Drops on Tear Film Thickness in Patients with Mild to Moderate Dry Eye Disease: A Randomized Controlled Clinical Trial

Purpose: The aim of this mechanistic clinical study was to explore the effect of water-free perfluorohexyloctane eye drops on tear film thickness (TFT) in patients with dry eye disease (DED). Methods: Forty-eight patients with mild to moderate DED participated in this randomized, single-masked, observer-blinded parallel group study in a 1:1 ratio to receive either perfluorohexyloctane or unpreserved 0.9% saline solution (Hydrabak®, Thea, France)...