Persona LowVisionMagnified
Canonical ID: low-vision-magnified · Category: Accessibility Personas · Since: v12.0.0
See: Persona-LowVision for the full documentation page.
This page documents the low-vision-magnified persona ID as used in the CLI and MCP tools. The full persona documentation is maintained at Persona-LowVision.
Quick Reference
Description: User with low vision using 3x screen magnification, effectively seeing only 1/9th of the screen at once. Causes a "tunnel vision" effect with frequent scrolling and panning.
Cognitive Profile
| Trait | Value | Meaning |
|---|---|---|
| patience | 0.70 | Patient; understands that navigation takes longer |
| riskTolerance | 0.30 | Low; cautious with limited visual information |
| comprehension | 0.60 | Normal when content is visible and legible |
| persistence | 0.70 | High; determined to find content despite visual constraints |
| curiosity | 0.30 | Low; exploration is costly with magnification |
| workingMemory | 0.60 | Normal capacity |
| readingTendency | 0.80 | High; reads carefully when text is visible |
| selfEfficacy | 0.45 | Low-medium; reduced confidence in task completion |
| changeBlindness | 0.80 | Very high; cannot see peripheral changes while magnified |
| siteFamiliarity | 0.30 | Low; magnification makes layout feel unfamiliar |
Key Behaviors
- Uses 3x screen magnification (sees 1/9th of page at a time)
- Requires high contrast for text legibility
- Reads slowly and carefully when content is visible
- Misses peripheral content and changes outside viewport
- Pans systematically across pages to build spatial model
When to Use
Use this persona when testing:
- Content legibility at high zoom levels
- Layout behavior at 200-400% browser zoom
- Contrast ratios (WCAG AA minimum 4.5:1)
- Spatial layout and content discovery
- Notification visibility for users with limited viewport
Usage
npx cbrowser cognitive-journey --persona low-vision-magnified --start https://example.com --goal "find contact page"
await cognitive_journey_init({
persona: "low-vision-magnified",
goal: "find contact page",
startUrl: "https://example.com"
});
Research Basis
Approximately 2.2 billion people globally have vision impairment (WHO). At 3x magnification, users effectively see 1/9th of the screen at once, creating a "tunnel vision" effect that fundamentally changes navigation strategy.
- Jacko, J. A., Dixon, M. A., Rosa, R. H., Scott, I. U., & Pappas, C. J. (2000). Visual profiles and performance in computer task completion by users with low vision. ACM SIGACCESS Conference on Assistive Technologies.
- Brody, B. L., Roch-Levecq, A. C., et al. (2002). Age-related macular degeneration, self-efficacy, and depression. Investigative Ophthalmology & Visual Science, 43(9), 1039-1045.
Related
- Persona-LowVision - Full documentation
- Persona-Index - All personas
- empathy_audit - Run empathy audit with this persona
- cognitive_journey_init - Start a cognitive journey
Copyright: (c) 2026 Alexa Eden.
License: MIT License
Contact: [email protected]