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- Klinische proef NCT04323358
Agreement and Accuracy of Different Devices for Biometry Measurements in Patients With Cataract (Comparison)
The rationale of this study is to compare repeatability, reproducibility and agreement of three different AS-OCT devices and Pentacam.
The investigational devices are approved biometry and keratometry devices to perform biometric/keratometric measurements preoperatively before cataract surgery. The measurements are used to calculate the needed IOL power.
Measurements with all four devices will be performed 3 times consecutively by two trained observer. The order of the observer, the order of devices as well as the eye (left/right) is randomized.
Examinations will be implemented in accordance with the approved investigational plan on subjects and includes: repeated biometry/keratometry with four different devices
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Studietype
Inschrijving (Verwacht)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Vienna, Oostenrijk, 1090
- Werving
- Medical University of Vienna Allgemeines Krankenhaus
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Contact:
- Rupert Menapace, Prof.
- Telefoonnummer: 014040066300
- E-mail: rupert.menapace@meduniwien.ac.at
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Contact:
- Christina Leydolt, MD
- Telefoonnummer: 79480 01 40400
- E-mail: christina.leydolt@meduniwien.ac.at
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Age-related cataract
- Age 40 and older (females of childbearing age will be interviewed if pregnancy is possible)
Exclusion Criteria:
- Contact lens wear within 5 days
- Pathologic changes of the cornea, eye lid or conjunctiva on slit- lamp examination
- History of corneal ocular surgery
- Microphthalmus
- Recurrent intraocular inflammation of unknown etiology
- Blind fellow eye
- Uncontrolled systemic or ocular disease
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Diagnostisch
- Toewijzing: Gerandomiseerd
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Verviervoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Actieve vergelijker: IOL Master® 700
Biometry will be performed three times consecutively.
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Patients will be asked to place the chin in position and open their eyes wide.
In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
Patients will be asked to place the chin in position and open their eyes wide.
In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
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Actieve vergelijker: Pentacam®
Keratometry will be performed three times consecutively.
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Patients will be asked to place the chin in position and open their eyes wide.
In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
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Actieve vergelijker: Casia II®
Keratometry will be performed three times consecutively.
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Patients will be asked to place the chin in position and open their eyes wide.
In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
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Actieve vergelijker: Spectralis Anterion®
Biometry will be performed three times consecutively.
|
Patients will be asked to place the chin in position and open their eyes wide.
In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
Patients will be asked to place the chin in position and open their eyes wide.
In between measurements, the patient will be arranged so his eyes are in one horizontal line and each time before measurement the patient will be asked to blink several times.
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Agreement of the four devices measuring mean keratometry value.
Tijdsspanne: 1 year
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The measured K-Value of each device and the k-values within one device will be compared
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1 year
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Agreement of the four devices measuring mean steep keratometry value.
Tijdsspanne: 1 year
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The measured steep K-Value of each device and the steep k-values within one device will be compared
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1 year
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Agreement of the four devices measuring mean flat keratometry value.
Tijdsspanne: 1 year
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The measured flat K-Value of each device and the flat k-values within one device will be compared
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1 year
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Agreement of the four devices measuring mean true keratometry value.
Tijdsspanne: 1 year
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The measured true K-Value of each device and the true k-values within one device will be compared
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1 year
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Agreement of the devices measuring mean axial length
Tijdsspanne: 1 year
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The measured axial length of each device and the axial length within one device will be compared
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1 year
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Agreement of the devices measuring mean lens thickness
Tijdsspanne: 1 year
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The measured lens thickness of each device and the measured lens thickness within one device will be compared
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1 year
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Agreement of the devices measuring mean white-to-white measurement
Tijdsspanne: 1 year
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The measured white-to-white distance of each device and the measured white-to-white distance within one device will be compared
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1 year
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Rupert Menapace, MD, Medical University of Vienna
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Verwacht)
Studie voltooiing (Verwacht)
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
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- 1845/2019
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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