Red light device shows promise for tired eyes in older adults
NCT ID NCT06745661
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether using a red-light device twice a day for a month can reduce visual fatigue in people aged 40 and older with presbyopia (age-related difficulty seeing up close). Sixty-six participants either used the real device or a sham device. Researchers measured changes in eye strain symptoms, eye movements, and focus ability. The goal is to find a simple, non-drug way to ease eye discomfort that affects daily life and work.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- repeated low-level red-light therapy device
- What this could lead to
- If it works, this could offer a simple, at-home device to reduce eye strain and discomfort for people with age-related reading vision problems.
- What could go wrong
- This is a small, early-stage study with only 66 participants. The results may not apply to everyone, and the sham device control means the benefit could be partly a placebo effect.
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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 Hong Kong Polytchnic University
Hong Kong, Hong Kong
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