Devlog – June 17, 2025

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What I Did

• Refactored the visual acuity test flow in the Vision8 app:
  • Added a convergence condition based on re-entry into the same test level (stabilization logic).
  • Test terminates if the same level is re-entered twice, or if the user gets 3 correct answers at that level.
• Simplified test progression logic to avoid infinite loops in edge cases.
• Converted millimeter sizes to pixels using a factor of 3.7795, assuming 96 DPI screen.
• Added a gamelike tutorial test to ensure the user is familiar with the interface.

What I Learned

• Re-entry-based stabilization is more user-friendly and effective than just correctness thresholds.
• Premature test termination can be avoided by balancing progression conditions.

What’s Left / Next Steps

• Implement distance-based scaling: dynamically adjust SVG size using viewing distance and screen DPI.
• Add logic that estimates depth through image provided (This will include image recognition).
• Add prompts and logic for left-eye and right-eye separation.
• Finalize post-test result display with timestamp, eye-specific acuity as a chart.
• User needs to answer checklists which will help them diagnose possible functional degradation of eyesight.