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Assessing the Turkish DDIVAT for Visual Acuity Measurement

NCT07240480 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 200

Last updated 2025-12-04

No results posted yet for this study

Summary

The goal of this observational methodological study is to validate the Turkish version of the DDIVAT visual acuity measuring device in a Turkish-speaking adult population.

The main questions it aims to answer are:

Does the Turkish version of the DDIVAT provide reliable and valid visual acuity measurements in Turkish speakers?

Are the results of the DDIVAT comparable to those obtained with the standard Snellen chart used in clinical practice?

Researchers will compare DDIVAT visual acuity test results with Snellen chart results to see if both methods produce consistent measurements.

Participants will:

Be adults aged 18 years or older, including both patients and healthy volunteers.

Undergo visual acuity testing using the DDIVAT system displayed on a smart TV connected to the university server.

Have their visual acuity re-measured using the standard Snellen optotype under the same conditions.

No medication or invasive procedure will be used. The study carries no risk to participants.

Conditions

  • Visual Acuity
  • Refractive Errors
  • Myopia
  • Hyperopia
  • Astigmatism

Interventions

DIAGNOSTIC_TEST

DDIVAT Visual Acuity Test (Turkish Version)

Participants' visual acuity will be measured using the Turkish version of the DDIVAT digital visual acuity device and compared with Snellen chart results. No treatment or invasive procedure will be performed.

Sponsors & Collaborators

  • Trakya University

    lead OTHER

Principal Investigators

  • Hande Güçlü, M.D., Prof. Dr. · Trakya University Faculty of Medicine Hospital

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-12-01
Primary Completion
2026-04-30
Completion
2026-05-31

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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 NCT07240480 on ClinicalTrials.gov