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Updated: Mar 8, 2026

$Subjective Refraction Test Using a Smartphone for Vision Screening$

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Magnifying Smartphone Screen Using Google Glass for Low-Vision Users.

Shrinivas Pundlik, HuaQi Yi, Rui Liu

IEEE Transactions on Neural Systems and Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society

|January 24, 2017

Summary

This summary is machine-generated.

Low-vision smartphone users can navigate magnified displays more easily using head motion. This head-contingent scanning control, via Google Glass, offers faster interaction than traditional screen zoom for certain tasks.

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Area of Science:

Human-Computer Interaction
Assistive Technology
Accessibility Research

Background:

Small smartphone screens pose challenges for low-vision users relying on magnification.
Traditional touch-based navigation on magnified displays can be difficult and lead to context loss.

Observation:

A novel system uses Google Glass to display magnified smartphone screenshots in real-time.
Users control the viewport by rotating their head, navigating magnified content without touch gestures.

Findings:

The head-contingent scanning system achieved 8x magnification with 7 screenshots per second.
Pilot studies showed faster task completion using head motion control compared to built-in screen zoom.

Implications:

Head-contingent scanning offers a promising new method for navigating magnified smartphone interfaces for visually impaired users.
This approach enhances accessibility and user experience for mobile device interaction.