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Related Experiment Video

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Delphi methodology for symptomatology associated with visual dysfunctions.

Mario Cantó-Cerdán1, Pilar Cacho-Martínez2, Ángel García-Muñoz1

  • 1Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Apartado 99, 03080, Alicante, Spain.

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|November 11, 2020
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Summary

Eyecare professionals identified key symptoms for visual dysfunctions like refractive, accommodative, and binocular issues. A Delphi method refined these into a visual symptomatology questionnaire, focusing on near vision complaints.

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Area of Science:

  • Ophthalmology and Optometry
  • Clinical Research

Background:

  • Visual dysfunctions, including refractive, accommodative, and binocular issues, significantly impact patient quality of life.
  • Standardized questionnaires are crucial for accurate diagnosis and management of these conditions.

Purpose of the Study:

  • To determine eyecare clinicians' consensus on symptoms associated with refractive, accommodative, and binocular dysfunctions.
  • To identify essential symptoms for inclusion in a visual symptomatology questionnaire.

Main Methods:

  • A three-round Delphi method involving a coordinating group and eyecare expert panel.
  • Initial symptom compilation from literature and expert suggestions, followed by categorization and numerical rating of symptom-dysfunction relationships.
  • Final assessment of symptom inclusion in a questionnaire.

Main Results:

  • Symptoms most frequently linked to visual anomalies by experts pertained to near vision.
  • Blurred vision, difficulty with distance changes, and single eye closure scored highest for refractive, accommodative, and binocular disorders, respectively.
  • Consensus was reached on 15 symptoms for the questionnaire, with disagreement on 5.

Conclusions:

  • The Delphi method effectively identified symptoms related to visual dysfunctions based on eyecare professional consensus.
  • The study provides a validated set of symptoms for a visual symptomatology questionnaire, aiding in clinical assessment.