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OpenTrials
Completed

NCT Number: NCT04383366

Agreement and Accuracy of Different Devices Corneal Measurements

To compare repeatability, reproducibility and agreement of both, AS- OCT and Scheimpflug imaging, for the measurement of corneal curvature and corneal thickness in patients with keratoconus.

Completed

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Key information

Conditions

Keratoconus Corneal Diseases Eye Diseases

Age range

18 year–99 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Medical University of Vienna, Department of Ophthalmology

Vienna, 1090, Austria

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Men and women aged between 18 and 99 years
  • Presence of keratoconus
  • Signed informed consent

Exclusion criteria

  • Contact lens history within 5 days
  • Pathologic changes of the lid or conjunctiva on slit-lamp examination
  • History of corneal ocular surgery/Previous corneal cross-linking

Treatment and study plan

Pentacam® (Oculus, Inc., Wetzlar, Germany)

Device

Scheimpflug imaging

Casia II (Tomey Germany, Nürnberg)

Device

Anterior segment optical coherence tomography

Spectralis Anterion (Heidelberg Engineering, Heidelberg, Germany)

Device

Anterior segment optical coherence tomography

Primary outcomes

  1. maximum K-value

    Time frame: 1 day

Secondary outcomes

  1. Simulated minimum and maximum K-value

    Time frame: 1 day

  2. Mean K-values

    Time frame: 1 day

  3. Central Corneal thickness

    Time frame: 1 day

  4. Thinnest corneal point

    Time frame: 1 day

Sponsors and collaborators

Lead sponsor

Gerald Schmidinger

Other

Registry information

Official study title

Agreement and Accuracy of Different Devices for the Measurement of Corneal Thickness and Corneal Curvature in Patients With Keratoconus

Important dates

Study start
2019
Primary completion
2020
Study completion
2020
First posted
May 12, 2020
Registry last updated
Mar 3, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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