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New treatment option for Myopia; Refractive Error
Official title Measuring Changes In Choroidal Thickness Induced By Prototype Soft Contact Lenses Worn For 1 Hour
ClinicalTrials.gov ID: NCT07155551
What this study is testing
- What it's testing
- 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.
A plain-language read of the study's public ClinicalTrials.gov listing. The study team confirms the details.
Who can take part
Ages 18 to 25
You may be able to join if
- 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...
- 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...
- Have not used a myopia control treatment within 2 years prior to Visit 0 (this includes multifocal spectacle or contact lens wear, orthokeratology...
You likely can't join if
- 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...
- Are using any systemic or topical medications that in the opinion of the investigator may affect a study outcome variable. Examples include...
See the full eligibility 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...
- 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...
- 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.
- 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).
The study team makes the final eligibility decision.
Where it's taking place
- Waterloo, Ontario, Canada
Questions & answers
Do participants get paid in this trial?
This listing doesn't specify compensation. Many trials still reimburse travel or offer a stipend, so it's worth asking the study team when you connect.
Is it free to join, and do I need insurance?
Searching and applying through BridgeMD is free. In clinical trials the study-related treatment and visits are generally provided at no cost to you. You usually don't need insurance to take part - confirm specifics with the study team.
How long does this study last?
The listing doesn't state an exact length. The study team walks you through the schedule and number of visits before you decide to enroll.
Who can join this trial?
This study is enrolling all sexes, 18 years to 25 years. The study team makes the final eligibility decision.
Where is this trial taking place?
Study sites include Waterloo, Ontario, Canada. Enter your location above to see the nearest site and check your eligibility.
Explore other conditions
BridgeMD is an information and trial-matching tool - not medical advice, and not the study sponsor. Details come from ClinicalTrials.gov; the study team decides eligibility.