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Can you wear the wrong contact lenses? new study investigates

NCT ID NCT06745375

Knowledge-focused Sponsor: Aston 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 This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether wearing contact lenses with a prescription that is slightly off (within 2 units of the correct power) still provides good vision and fit. About 38 healthy adults who already wear contacts will try two different lenses. The goal is to see if these off-prescription lenses could be a safe backup option when the exact prescription is not available.

What this could mean

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

Active substance
contact lenses
What this could lead to
If successful, this could show that slightly off-prescription contact lenses are a safe temporary option when the exact prescription is unavailable.
What could go wrong
This is a small, early study with only 38 healthy participants. It only tests lenses within a narrow range and may not apply to everyone or to long-term use.

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

About 38 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Dec 2026

An estimate. End dates often move.

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 60 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Between 18-60 years of age * Vision correctable to at least 6/12 (20/40) or better in each eye * with mental capacity to provide written consent in English (as per the Mental Capacity Act, 2005). * happy to wear investigational contact lenses Exclusion Criteria: * Any active infection or inflammation, history of major systemic or ophthalmic conditions * use of systemic or topical medications known to affect the eye in the previous 3 months * history of ocular surgery, currently enrolled on another study/clinical trial that may impact outcome * any other contraindications for typical contact lens wear * As per the Mental Capacity Act, 2005, participants will be automatically excluded if not deemed to have Capacity for consent or under the age of 18.

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As listed by the trial registrant

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

Contact lens fit Contact lens wear Healthy participants study

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • School of Optometry, Aston Eye Clinic

    Birmingham, UK, B4 7ET, United Kingdom

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