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Can eye shape predict which contact lens stays put?

NCT ID NCT07795671

Knowledge-focused Sponsor: Bozok University Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 31, 2026 · Last updated Sep 02, 2026 · Updated 2 times

Summary

This trial tests two different soft toric contact lenses, Acuvue Oasys for Astigmatism and Air Optix for Astigmatism, to see how much they rotate on the eye. Researchers will measure lens rotation in adults with astigmatism who have never worn contacts, using a special microscope after 30 minutes of wear. The study also checks whether eye measurements, like shape and refractive error, are linked to how much the lens moves. The goal is to understand which lens design stays more stable and whether eye characteristics can guide lens selection.

What this could mean

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

Active substance
Two commercially available soft toric contact lenses: Acuvue Oasys for Astigmatism and Air Optix for Astigmatism
What this could lead to
If it works, this could help eye care professionals choose the best lens design for each person, improving comfort and vision clarity.
What could go wrong
This is a small, early-stage study with only 40 participants, so results may not apply to everyone. The lenses are already on the market, so the trial is about comparing performance, not proving safety.

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

40 people

The number who actually took part.

Started

May 2026

Finished

Jul 2026

Lead sponsor

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

18 to 50 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: * Adults with astigmatic refractive error suitable for correction with the -commercially available toric contact lenses used in the study * No prior experience with contact lens wear * Healthy ocular surface examination * Ability and willingness to provide written informed consent Exclusion Criteria: * History of corneal pathology * Previous ocular surgery * Active ocular disease * Systemic disease affecting the eyes

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Conditions

The condition(s) this trial relates to.

astigmatism

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Astigmatism

Contacts and locations

Locations

  • Yozgat Bozok University Research and Application Hospital

    Yozgat, Yozgat, 66100, Turkey (Türkiye)

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