👁 Visiontherapy Visual Acuity Checker
🎯 Step 1: Calibrate your screen by matching the card size below
Hold a credit card or any standard card against the image below. Zoom until it matches size:
"Match this with a credit card"
📏 How to Use This Test Accurately
For best results, follow these instructions carefully:
- Stand or sit exactly 3 feet (90 cm) away from your screen.
- Make sure your screen is calibrated using the card above.
- Cover one eye with your hand (without pressing on the eyelid).
- Read each line of letters aloud — click “Yes” if clear, “No” if not.
- Then switch to the other eye and repeat the test.
Note: This test provides an approximate visual acuity score. For a full diagnosis, consult a licensed optometrist.
