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Repeatability and Reproducibility of Lens Zonule Length Measurement Using ArcScan Insight 100

NCT05657951 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 45

Last updated 2022-12-20

No results posted yet for this study

Summary

The purpose of this study is to evaluate the intra-examiner repeatability and inter-examiner reproducibility in lens zonule length measurements using very high-frequency (VHF) digital ultrasound (ArcScan Insight 100).

Conditions

  • Zonule of Zinn Abnormality
  • Zonular Cataract

Interventions

DEVICE

ArcScan Insight 100 very high-frequency digital ultrasound

The Insight-100 (ArcScan Inc., Golden, CO, USA) employs the high-frequency B-scan in the assessment of anterior segment parameters. Anormal saline coupling medium is formed with a disposable eyepiece between the 50 MHz transducer and the eye. The instrument moves the transducer in an arc so that the beam axis maintains approximate normality to the surface of the eye. The frequencies of cornea, anterior chamber, and lens are 60 MHz, 50 MHz and 50 MHz, respectively. The maximum arc scanning range is 70 degrees, and there is a linear scanning range of 29mm. The axial and lateral resolutions are 35 μm and 65 μm, respectively. It can measure structures behind the iris, including lens zonule.

Sponsors & Collaborators

  • Wenzhou Medical University

    lead OTHER

Eligibility

Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-08-01
Primary Completion
2022-10-01
Completion
2022-12-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05657951 on ClinicalTrials.gov