- ICH GCP
- Register voor klinische proeven in de VS.
- Klinische proef NCT07868003
Objective Depth-of-Focus Changes During Light Adjustable Lens UV Adjustments
Objective Depth-of-Focus Changes During Light Adjustable Lens UV Adjustments and Lock-In: A Prospective Pilot Study
This observational pilot study will examine how a person's vision changes during the routine adjustment and finalization of a Light Adjustable Lens (LAL) after surgery. The study will focus on objective depth of focus, measured using iTrace wavefront analyzer, which describes how clearly a person can see at different distances. This is a non-invasive eye test that will be used alongside the standard lens adjustment process. This study will help researchers understand why some patients achieve unexpectedly good near or intermediate vision after LAL adjustments despite being targeted for emmetropia.
Studie Overzicht
Toestand
Studietype
Inschrijving (Geschat)
Contacten en locaties
Studie Locaties
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Ontario
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Barrie, Ontario, Canada, L4M 7G1
- Werving
- Lumea
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Contact:
- Jacqueline Sun
- Telefoonnummer: 705-300-0741
- E-mail: Jsun@clarityeye.ca
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Adults undergoing bilateral cataract surgery with LAL implantation as part of standard clinical care.
Beschrijving
Inclusion Criteria:
- Adults ≥18 years of age.
- Scheduled to undergo bilateral cataract extraction with LAL implantation as standard-of-care.
- Able to provide written informed consent.
- Able to comply with study visits and required assessments throughout the LAL adjustment and lock-in sequence.
Exclusion Criteria:
- Presence of ocular comorbidities in either eye that may affect visual outcomes or wavefront measurements, including but not limited to glaucoma, age-related macular degeneration, diabetic retinopathy, corneal disease, amblyopia, or prior refractive surgery.
- Intraoperative complications affecting IOL positioning, centration, or stability.
- Inability to obtain reliable iTrace measurements due to inadequate fixation or poor measurement quality.
- Participation in another interventional ophthalmic clinical study.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Observatiemodellen: COHORT
- Tijdsperspectieven: PROSPECTIVE
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Objective Monocular Depth of Focus
Tijdsspanne: Baseline, prior to each UV adjustment, and prior to the first lock-in.
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Change in objective monocular depth of focus throughout the LAL UV adjustment and lock-in sequence, measured using the iTrace wavefront aberrometry system. Objective monocular depth of focus will be quantified using the VSOTF-based DOF profile and reported as the DOF range (D) at each timepoint. |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Uncorrected Distance Visual Acuity
Tijdsspanne: Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
UDVA monocular and binocular |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
|
Uncorrected Near Visual Acuity
Tijdsspanne: Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
UNVA monocular and binocular |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
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Best Corrected Distance Visual Acuity
Tijdsspanne: Baseline, prior to each UV adjustment, and prior to the first lock-in.
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BCDVA monocular |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
|
Manifest Refraction
Tijdsspanne: Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
Manifest refraction (sphere, cylinder, axis) |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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iTrace-derived angle kappa
Tijdsspanne: Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
Angle Kappa from the iTrace will be taken at each step |
Baseline, prior to each UV adjustment, and prior to the first lock-in.
|
Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- CEI-LAL-DOF-2026
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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