New contact lens study targets Screen-Weary eyes
NCT ID NCT06308666
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested how well DAILIES TOTAL1 daily disposable contact lenses work for people with myopia (nearsightedness) who use digital devices for at least 8 hours a day. 41 adults rated their comfort, dryness, and vision clarity after a day of screen use. The goal was to see if these lenses help reduce common screen-related eye discomfort.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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41 people
The number who actually took part.
- Started
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Mar 2024
- Finished
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Oct 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 40 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Are between 18 and 40 years of age (inclusive) and has full legal capacity to volunteer; 2. Have read and signed an information consent letter; 3. Are willing and able to follow instructions and maintain the appointment schedule; 4. Are a digital device user (at least 8 hours on a typical day using any combination of digital devices such as personal computer \[PC\], laptop, smartphone or tablet); 5. Are a habitual wearer of daily wear, spherical, soft contact lenses (no bifocal or multifocal contact lenses, no extended wear or monovision) for at least 5 days/week and at least 13+ hours/day on a typical day during the month prior to enrolment; 6. The habitual lens type brand will be restricted such that a maximum of 7 participants will be included in the study for each lens brand/material; 7. Have a vertex corrected spherical equivalent distance refraction within -0.50 Diopter (D) to -9.00D in each eye; 8. Have a vertex corrected refractive cylinder ≤ -0.75 cylindrical correction in each eye after vertexing to the corneal plane; 9. Demonstrate an acceptable fit and achieves best corrected visual acuity of at least 0.10 logMAR in each eye with DAILIES TOTAL1® contact lenses; 10. Are willing to wear DAILIES TOTAL1® contact lenses at least 5 days per week and 13+ hours per day throughout the study. Exclusion Criteria: 1. Are participating in any concurrent clinical or research study involving intervention or invasive ocular tests; 2. Are presbyopic or habitually use a reading addition for close work; 3. Have any known active\* ocular disease and/or infection; \[\* For the purposes of this study, active ocular disease is defined as infection or inflammation which requires therapeutic treatment. Mild (i.e. not considered clinically relevant) lid abnormalities (blepharitis, meibomian gland dysfunction, papillae), corneal and conjunctival staining and mild dry eye are not considered active ocular disease. Neovascularization and corneal scars are the result of previous hypoxia, infection or inflammation and are therefore not active.\] 4. Meet the diagnosis of dry eye disease as per the following combination: 1. Meets the symptom criteria of Contact Lens Dry Eye Questionnaire (CLDEQ-8) score ≥12 2. And they show 1 of the following 2 signs: * Either sodium fluorescein (NaFl) staining (either \[cornea \>5 dots\] or \[conjunctiva \>9 dots\] or \[lid margin \>2mm length AND ≥25% width\]); * Or non-invasive tear film break-up time (NITBUT) (no contact lens) \<10 seconds. 5. Have a systemic condition that in the opinion of the investigator may affect a study outcome variable;+ \[+ Any potential exclusion will be reviewed with the Lead Investigator or Principal Investigator prior to final decision making.\] 6. Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable; 7. Are a current wearer of DAILIES TOTAL1® daily disposable contact lenses; 8. Have known sensitivity to the diagnostic pharmaceutical sodium fluorescein to be used in the study; 9. Have undergone refractive error surgery; 10. Are a member of the Centre for Ocular Research \& Education (CORE) directly involved in the study.
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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
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Centre for Ocular Research & Education
Waterloo, Ontario, N2L 3G1, Canada
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Other studies related to the condition(s) this trial covers.
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