Visual Attention to Economic Information in Simulated Ophthalmic Deficits: A Remote Eye-Tracking Study

Area of Science:

• Ophthalmology
• Cognitive Science
• Behavioral Economics

Background:

• Visual field deficits impact daily functioning and information processing.
• Understanding these impacts is crucial for developing assistive strategies.
• Simulated deficits allow controlled investigation of these effects.

Purpose of the Study:

• To investigate the effects of simulated ophthalmic visual field deficits on visual attention and economic information processing.
• To assess the feasibility of webcam-based eye tracking for studying simulated visual deficits.
• To explore how different visual field loss patterns influence cognitive load and comprehension.

Main Methods:

• 227 participants with normal vision underwent simulated central, peripheral, or scattered vision loss using webcam-based eye tracking.
• Participants processed economic stimuli of varying complexity.
• Oculomotor behavior, cognitive load, and comprehension accuracy were measured.

Main Results:

• All simulated visual deficits altered oculomotor behavior.
• Central vision loss led to significantly longer fixation durations, scanpaths, and reduced comprehension (61.2% vs. 87.3% for controls).
• Visual deficits interacted with information complexity, exacerbating impairments for complex stimuli, with 47% of comprehension deficits mediated by attention.

Conclusions:

• Simulated visual field deficits fundamentally alter economic information processing via perceptual limitations and attention strategies.
• Webcam-based eye tracking is a feasible method for studying simulated visual deficits.
• Distinct visual field deficits necessitate tailored information presentation strategies for optimal comprehension.