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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Studientyp
Einschreibung (Voraussichtlich)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Veronika Röggla, MD
- Telefonnummer: 79450 01 40400
- E-Mail: veronika.roeggla@meduniwien.ac.at
Studieren Sie die Kontaktsicherung
- Name: Christina Leydolt, MD
- Telefonnummer: 79480 01 40400
- E-Mail: christina.leydolt@meduniwien.ac.at
Studienorte
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Vienna, Österreich, 1090
- Rekrutierung
- Medical University of Vienna Allgemeines Krankenhaus
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Kontakt:
- Rupert Menapace, Prof.
- Telefonnummer: 014040066300
- E-Mail: rupert.menapace@meduniwien.ac.at
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Kontakt:
- Christina Leydolt, MD
- Telefonnummer: 79480 01 40400
- E-Mail: christina.leydolt@meduniwien.ac.at
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Diagnose
- Zuteilung: Zufällig
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Vervierfachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
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Aktiver Komparator: 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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Aktiver Komparator: 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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Aktiver Komparator: 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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Aktiver Komparator: Spectralis Anterion®
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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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Agreement of the four devices measuring mean keratometry value.
Zeitfenster: 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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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Agreement of the four devices measuring mean steep keratometry value.
Zeitfenster: 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.
Zeitfenster: 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.
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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
Zeitfenster: 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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Mitarbeiter und Ermittler
Sponsor
Sponsor
Ermittler
Ermittler
- Hauptermittler: Rupert Menapace, MD, Medical University of Vienna
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Voraussichtlich)
Primärer Abschluss
Studienabschluss (Voraussichtlich)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 1845/2019
Plan für individuelle Teilnehmerdaten (IPD)
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Arzneimittel- und Geräteinformationen, Studienunterlagen
Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt
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