Sunny Pointer: Designing a mouse pointer for people with peripheral vision loss.

Area of Science:

• Human-Computer Interaction
• Assistive Technology
• Visual Impairment Research

Background:

• Peripheral vision loss presents significant challenges for computer mouse usability.
• Traditional mouse cursors require precise visual localization, which is difficult for individuals with visual field deficits.

Purpose of the Study:

• To introduce and evaluate a new mouse cursor designed to assist users with peripheral vision loss.
• To quantify the performance improvements offered by the novel cursor in targeting tasks.

Main Methods:

• Development of a screen-covering, converging line mouse pointer.
• Performance evaluation with participants experiencing various types of peripheral vision loss.
• Utilizing eye-tracking technology to analyze movement initiation.
• Application of Fitts' Law to compare performance with full visual field users.

Main Results:

• The new mouse cursor reduced task completion time by a factor of seven for participants with peripheral vision loss.
• Eye-tracking data indicated that users could initiate movements without precise cursor localization.
• Fitts' Law analysis revealed insights into the relationship between estimated cursor position accuracy and performance.

Conclusions:

• The developed mouse cursor effectively enhances computer interaction for individuals with peripheral vision loss.
• The system facilitates target acquisition by reducing the reliance on precise visual localization of the cursor.
• Further research can explore the optimization of cursor design parameters based on Fitts' Law and user performance metrics.