Phone film fights dry eyes and strain in new study

NCT ID NCT06992635

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether special anti-reflection and circularly polarized films placed on smartphone screens can reduce dry eyes and eye strain caused by close-up screen use. 120 adults with mild nearsightedness used phones for 45 minutes in light or dark settings. Researchers measured tear film stability and eye muscle activity before and after tasks to see if the films helped.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • The Second Affiliated Hospital Zhejiang University School of Medicine (SAHZU)

    Hangzhou, Zhejiang, 310000, China

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