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.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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The Hong Kong Polytchnic University
Hong Kong, Hong Kong