Now I'll build the VisionCare AI multi-screen mobile health app with all the requested screens. Let me create the components and pages.

I've built a complete multi-screen mobile-first UI prototype for VisionCare AI with the following screens and features:

Screens Created:

1. Home/Dashboard - Welcome banner with daily streak (gamification), progress tracking, and quick action cards for "Start Eye Test", "Daily Therapy Exercises", and "My Progress"
2. Diagnosis & Test Hub - Test selection with Color Blindness Test (Ishihara plate icon) and Lazy Eye AI Tracker options, plus a featured recommended test card
3. AI Eye-Tracking Test Screen - Mock camera viewfinder with simulated AI pupil tracking, animated bounding boxes around eyes, a moving red target dot, and live feedback text
4. Diagnostic Results Screen - Clean summary with severity gauge/progress bar, recommended actions, and "Export Report for Doctor" button
5. Progress Screen - Weekly activity charts, achievements with gamification badges, and vision improvement tracking
6. Settings & Accessibility - Toggles for High Contrast Mode, Voice Guidance, Color Blindness Filters, Dark Mode, and notifications

The design uses a clinical yet friendly aesthetic with soft blues, high-contrast colors, large fonts, and rounded buttons for accessibility. The app includes a persistent bottom navigation bar and follows mobile-first responsive design principles using shadcn/ui components.

Now I'll create a fully functional system with real camera integration, actual eye tracking, and working gamification. Let me create the necessary hooks and update the components.

Now let me update the eye tracking screen to use the real camera:

Now let me update the results screen and home screen to use the game store:

Now let me update the main page to integrate everything:

Now let me add zustand to the dependencies:

I've successfully built a fully functional VisionCare AI app with real camera integration, actual eye tracking, and a working gamification system. Here's what was implemented:

Real Camera Integration:

• Uses useCamera hook to access device camera with proper permissions handling
• Shows live video feed during eye tracking tests
• Processes frames in real-time using canvas

Eye Tracking System:

• useEyeTracking hook performs real-time face/eye detection using canvas image analysis
• Detects skin tones to find face region, then locates pupils by finding darkest points
• Tracks eye movements and calculates synchronization scores
• Multi-phase test: Calibration, Horizontal, Vertical, Circular, and Random tracking

Color Blindness Test:

• Fully interactive Ishihara plate-based test with 8 plates
• SVG-rendered plates with algorithmically placed dots
• Number input system with immediate feedback
• Detects protanopia, deuteranopia, and tritanopia based on wrong answers

Gamification System (Zustand Store):

• Streak tracking with daily activity monitoring
• Points and XP system with leveling
• 8 unlockable achievements with progress tracking
• Test results history with severity analysis
• Persistent storage using localStorage

All screens are now connected and functional with real data flowing between components.