A web-based eye health screening app that guides users through 8 vision tests with voice guidance and AI-powered result analysis.

• 8 Vision Tests — Visual Acuity, Color Vision, Astigmatism, Contrast Sensitivity, Near Vision, Peripheral Vision, Amsler Grid, and Symptoms Check
• Voice Guidance — Audio instructions throughout each test
• AI Analysis — Gemini API interprets results and provides a health summary
• PDF Report — Download your results as a PDF
• Results Dashboard — Visual summary of all test outcomes

• Node.js (v16 or higher)
• A Google Gemini API key

1. Clone or download the repository and navigate to the project folder:

   cd eye-app/visioncheck

2. Install dependencies:

   npm install

3. Add your Gemini API key to .env.local in the visioncheck/ directory:

   REACT_APP_GEMINI_KEY=your_api_key_here

   A .env.example template is included for reference. The .env.local file is gitignored and will never be committed.

4. Start the development server:

   npm start

   The app will open at http://localhost:3000.

• React 19 — UI framework
• Google Generative AI SDK — Gemini API integration
• html2canvas + jsPDF — PDF report generation
• Create React App — Build tooling