Photocatalytic desktop humidifier reduces dry eye during visual display terminal tasks

Using a photocatalytic desktop humidifier during prolonged visual display terminal tasks can significantly improve tear film stability and reduce symptoms of dry eye and digital eye strain, according to a study.

The study included 31 participants who were randomly divided into 2 groups: one using a desktop humidifier with photocatalytic technology (“with mist” group) and a control group without mist. Participants performed visual display terminal tasks for 1 hour, with ocular symptoms and tear film parameters assessed before, immediately after, and 1.5 hours post-task.

There was a marked improvement in ocular symptoms for the humidifier group immediately after the task and 1.5 hours later compared to baseline. In addition, tear meniscus height and non-invasive breakup time were significantly better in the humidifier group immediately after the task. The plugging of the meibomian gland orifices was also significantly reduced immediately after and up to 1.5 hours post-task in the humidifier group.

The authors concluded that this technology could be a beneficial addition to modern office environments.

Reference
Arita R, Fukuoka S. Safety and Efficacy of Photocatalytic Micro-Mist Desktop Humidifier for Dry Eye Caused by Digital Environment: A Randomized Controlled Trial. J Clin Med. 2024;13(13):3720. doi: 10.3390/jcm13133720. PMID: 38999288; PMCID: PMC11242111.