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Measuring Visual Fields in Children With Glaucoma Using a Portable Tablet.

Viney Gupta1, George X Y Kong2, Abhishek Singh1

  • 1Dr Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi, India.

Translational Vision Science & Technology
|May 14, 2024
PubMed
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An iPad perimetry app (Melbourne Rapid Fields) showed results comparable to the Humphrey Field Analyser for children with glaucoma. This visual field testing was preferred by children and is suitable for clinical evaluation.

Area of Science:

  • Ophthalmology
  • Medical Technology
  • Pediatric Glaucoma

Background:

  • Pediatric glaucoma management requires accurate visual field assessment.
  • Traditional perimetry methods like the Humphrey Field Analyser (HFA) can be challenging for children.
  • Novel, patient-friendly approaches to visual field testing are needed.

Purpose of the Study:

  • To compare the perimetric outcomes of an iPad-based perimetry application, Melbourne Rapid Fields (MRF), with the Humphrey Field Analyser (HFA) in children with glaucoma.
  • To assess the concordance and repeatability of MRF and HFA in evaluating visual field defects in pediatric glaucoma patients.

Main Methods:

  • Sixteen children with glaucoma underwent visual field testing using both MRF and HFA over two visits.
  • Mean deviation (MD) and pattern deviation indices were primary outcome measures.

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  • Regression, intraclass correlation coefficient, and Bland-Altman analyses were used to assess concordance and repeatability.

    • Main Results:

    • MRF demonstrated strong concordance with HFA for mean deviation (intraclass correlation coefficient = 0.91).
    • Repeatability coefficients were comparable for normal fields but larger for glaucomatous defects in both MRF and HFA.
    • MRF test times were similar to HFA's SITA Fast and significantly faster than SITA Standard.

    Conclusions:

    • The Melbourne Rapid Fields app provides comparable perimetric outcomes to the HFA in children with glaucoma.
    • MRF is a suitable and preferred method for visual field evaluation in this pediatric population.
    • iPad-based perimetry offers a promising alternative for assessing visual fields in children with glaucoma.