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Can Applications Designed to Evaluate Visual Function Be Used in Different iPads?

Dolores de Fez, María José Luque1, Mari Carmen García-Domene1,2

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Optometry and Vision Science : Official Publication of the American Academy of Optometry
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Apple devices can be used for vision testing if color calibration is device-specific. Using a color test designed for one device on another can lead to significant errors in visual assessment.

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Area of Science:

  • Ophthalmology
  • Color Science
  • Human-Computer Interaction

Background:

  • Many vision applications lack expert input, leading to design flaws and inaccurate visual assessments.
  • Reliable vision tests require precise generation of visual stimuli tailored to specific devices.

Purpose of the Study:

  • To evaluate the feasibility of using a color vision test designed for one colorimetrically characterized device on a different, similar device.
  • To assess color reproduction errors when a vision test is transferred between different Apple iPad models.

Main Methods:

  • Color reproduction errors were analyzed across three iPad models with Retina displays.
  • Individual color characterization models for each iPad were used, alongside a model derived from another device.

Main Results:

  • Significant color reproduction errors occurred when a colorimetric design was not adapted for a new device.
  • Even with a small sample size, the study highlighted the risks of cross-device test application.

Conclusions:

  • Color distortion in vision tests can lead to misdiagnosis, with individuals potentially being incorrectly classified as having normal or impaired vision.
  • Accurate spatial and colorimetric characterization of device screens is crucial for reliable vision testing on platforms like Apple devices.