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Updated: Jun 7, 2026

Subjective Refraction Test Using a Smartphone for Vision Screening
Published on: October 18, 2024
Bruce M Pixton1, John E Greivenkamp
1College of Optical Sciences, University of Arizona, 1630 East University Boulevard, Tucson, Arizona 85721, USA. pixtonb@optics.arizona.edu
We created a new tool to measure spherical aberration, a common vision issue. This device helps determine how well vision can be corrected by adjusting for this specific optical error.
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