CompletedNot Applicable

Evaluating the Effectiveness of Comfort Reading Mode in Preventing Dry Eyes and Visual Fatigue

China35 participantsStarted 2025-06-01

Plain-language summary

The purpose of this study was to investigate the effects of visual fatigue and dry eye level under different reading background polarities and different text colours, and to evaluate the effect of comfortable reading mode on the improvement of visual fatigue and dry eye level

Who can participate

Age range

20 Years – 40 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Adult population, regardless of gender. * Refractive error is less than or equal to -2.5D and both eyes achievecorrected visual acuity of 0.8 or higher. * Normal intraocular pressure with no organic pathology. * No apparent symptoms of dry eye. * Willing to cooperate to complete all the tests. * Voluntarily signing the informed consent form. Exclusion Criteria: * Individuals with strabismus and amblyopia exist. * Suffering from congenital eye conditions such as congenital cataracts or congenital retinal diseases. * Those who have undergone intraocular surgery (such as cataract removal, intraocular lens implantation, etc.). * Individuals with refractive media opacity (such as corneal lesions, lens opacity, etc.). * Only one eye meets the inclusion criteria. * Active corneal infections such as bacterial, fungal, viral, or other acute or chronic anterior segment inflammations. * Currently using medications that may lead to dry eye or affect vision and corneal curvature. * Other ocular conditions, such as dacryocystitis, eyelid disorders and abnormalities, abnormal intraocular pressure, and glaucoma. * Unable to undergo regular eye examinations.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1This trial looked at something called 'critical flicker fusion frequency' to measure visual fatigue — can you explain what that measurement actually tells us about eye health, and whether it's a reliable way to know if a reading mode is truly helping?
2The trial has already been completed — is there any way to find out what the results showed about whether 'Comfort Reading Mode' actually reduced dry eyes or visual fatigue compared to a standard screen setting?
3Since this was a Phase N/A study, which often means it's more of a device or behavioral evaluation than a drug trial, what does that mean for how confident we should be in any findings, and would those findings be relevant to my specific situation?
4If the results suggest Comfort Reading Mode is helpful, are there existing screen settings or eye-care strategies you'd already recommend to me right now that achieve a similar effect, while I wait for published results from this trial?
5Could my current symptoms of visual fatigue or dry eyes point to an underlying condition that should be evaluated on its own, separate from any screen-use intervention like the one tested in this trial?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Critical flicker fusion frequency

Timeframe: Participants underwent five randomized experimental conditions through study completion, an average of 2 months. For each condition, CFF test was administered at baseline (pre-experiment) and post-task,totaling ten completions per participant.

Trial details

NCT IDNCT07032909

SponsorBeijing Tongren Hospital

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2025-08-15

View on ClinicalTrials.gov More Visual Fatigue trials

Who can participate

Age range

20 Years – 40 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.