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New contact lens study tests better comfort for astigmatism sufferers

NCT ID NCT06873048

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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

Summary

This study tested two types of soft contact lenses—Myday Sphere and Myday Toric—in 32 people who already wear spherical lenses but have low astigmatism. Participants wore each lens type for one week and rated comfort on a 0-100 scale. The goal was to see if the toric lens offers better comfort for those with mild astigmatism.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
stenfilcon A contact lenses (sphere and toric designs)
What this could lead to
If successful, this could show that toric lenses provide better comfort for people with low astigmatism who currently wear spherical lenses.
What could go wrong
This is a small, short-term study with only 32 participants, so results may not apply to everyone. Comfort is subjective and measured on a scale.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

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

32 people

The number who actually took part.

Started

Feb 2025

Finished

Jul 2025

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

17 to 42 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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. At least 17 years and no more than 42 years of age. 2. Have read and signed the study consent form. 3. Are willing and able to follow instructions and maintain the appointment schedule. 4. Are habitual wearer of spherical soft contact lenses (not toric or multifocal design), any brand and any replacement frequency. 5. Are willing to wear the study contact lenses for 6 days a week while in this study and on three days (day 1, Day 7 and Day 13) for at least 12 hours. 6. Are willing to provide a contact email and telephone number and to use a device that allows them to respond to a short online questionnaire every 3 hours on days 1, 7 and 13 of each lens arm, while wearing one of the 2 study lenses. 7. Are non-presbyopic i.e. no requirement for a reading addition for routine daily tasks (self report). 8. Have astigmatism of either -0.50, -0.75, -1.00 or -1.25 DC in each eye by subjective sphero-cylindrical refraction. 9. Achieves at least 0.10 LogMAR in each eye by subjective sphero-cylindrical refraction. 10. Can be fit with available study contact lens powers of between +6.00 to -10.00 DS. 11. Demonstrate an acceptable fit with the study contact lenses. Exclusion Criteria: 1. Are participating in any concurrent clinical interventional study. 2. Have worn rigid contact lenses in the last 3 months. 3. Have worn soft toric contact lenses in the past 3 months. 4. Have any known active ocular disease or allergies and/or infection. 5. Have clinically significant biomicroscopy findings or have an ocular condition that contraindicate contact lens wear. 6. Have a systemic condition that in the opinion of the investigator may affect a study outcome variable or contraindicate wearing soft contact lenses. 7. Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable or contraindicate wearing soft contact lenses. 8. Have known sensitivity to the diagnostic sodium fluorescein to be used in the study. 9. Have undergone refractive error surgery or intraocular surgery. 10. Are an employee of the Centre for Ocular Research \& Education directly involved in this 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

  • School of Optometry & Vision Science

    Waterloo, Ontario, N2L 3G1, Canada

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