NCT07155551 Measuring Changes In Choroidal Thickness Induced By Prototype Soft Contact Lenses Worn For 1 Hour
| NCT ID | NCT07155551 |
| Status | Recruiting |
| Phase | — |
| Sponsor | Myoptechs, Inc |
| Condition | Myopia; Refractive Error |
| Study Type | INTERVENTIONAL |
| Enrollment | 20 participants |
| Start Date | 2025-08-25 |
| Primary Completion | 2025-12 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 20 participants in total. It began in 2025-08-25 with a primary completion date of 2025-12.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
The objective of the study is to evaluate the short-term change in choroidal thickness induced by 3 prototype soft contact lenses for people with myopia.
Eligibility Criteria
Inclusion Criteria: * Are 18-25 years of age (inclusive) and have full legal capacity to volunteer; Have read (or be read to) and signed the information and consent form; Habitually wear soft contact lenses or are spectacle wearers with previous experience of soft contact lens wear; * Are myopic with both eyes having a vertex corrected spherical equivalent non-cycloplegic refraction of at least -0.50 DS and no more than -4.50 DS; * Achieve at least LogMAR +0.10 with spherical equivalent refraction in each eye; * Are willing and able to maintain the appointment schedule and follow the measurement visit instructions which include no use of caffeine drinks, alcohol or other stimulants 12 hours before each measurement visit and no smoking or use of recreational cannabis 24 hours before the study visit; * Have not used a myopia control treatment within 2 years prior to Visit 0 (this includes multifocal spectacle or contact lens wear, orthokeratology, or atropine); * Typically sleeps at least 7 hours per night. Exclusion Criteria: * Participating in any concurrent clinical or research study; * Have astigmatism of more than 1.00 DC in either eye as per non-cycloplegic refraction; * Have amblyopia in either eye or known to have any other binocular vision disorder, such as accommodative insufficiency; * Have any known active\* ocular disease and/or infection; * Have a systemic condition that in the opinion of the investigator may affect a study outcome variable. Examples include diabetes mellitus, hyperthyroidism, and active allergies; * Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable. Examples include antihistamine, atropine eye drops; * Have known sensitivity to the sodium fluorescein diagnostic pharmaceutical to be used in the study; * Self-reports as pregnant, lactating or planning a pregnancy at the time of enrolment; * Have undergone strabismus surgery, refractive error surgery or intraocular surgery; * Are an employee of the Centre for Ocular Research \& Education directly involved in this study (i.e. on the delegation log).
Frequently Asked Questions
Who can join the NCT07155551 clinical trial?
This trial is open to participants of all sexes, aged 18 Years or older, up to 25 Years, studying Myopia; Refractive Error. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT07155551 currently recruiting?
Yes, NCT07155551 is actively recruiting participants. Visit ClinicalTrials.gov or contact Myoptechs, Inc to inquire about joining.
Where is the NCT07155551 trial being conducted?
This trial is being conducted at Waterloo, Canada.
Who is sponsoring the NCT07155551 clinical trial?
NCT07155551 is sponsored by Myoptechs, Inc. The trial plans to enroll 20 participants.