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Advanced Tests

Taking the Blink Test (MBI Analysis)

Learn how to perform the Momentary Blink Interval test to record your natural blink patterns.

The Momentary Blink Interval (MBI) test records your natural, spontaneous blink patterns. This test measures the timing and characteristics of your blinking behavior.

Before You Start

What You'll Need

  • A well-lit environment
  • Your face clearly visible to the front camera
  • 2-3 minutes of uninterrupted time
  • Comfortable seating position

Important Notes

  • This test is for informational and wellness tracking purposes only
  • Results are not a substitute for a medical diagnosis
  • Consult a healthcare professional for any health concerns

Accessing the Test

Step 1: Navigate to the Home tab

Step 2: Scroll down to find the Health Tests section

Step 3: Tap on the "Blink Test" card

The Calibration Process

For accurate results, you must first calibrate the system to your eyes. This is a quick, one-time setup that teaches the app how to recognize your unique eye characteristics.

Starting Calibration

Step 1: If you see a "Calibrate Now" button, tap it to begin

Step 2: Follow the on-screen instructions:

Calibration Steps

Position Your Face

  • Center your face in the camera view
  • Ensure your eyes are clearly visible
  • Maintain a comfortable distance (about 12-18 inches)

Look Straight Ahead

  • Keep your eyes open
  • Look directly at the camera
  • Maintain a neutral, relaxed expression

Blink Naturally

  • Blink normally a few times when prompted
  • Don't force or exaggerate your blinks
  • Let your eyes behave naturally

Step 3: Once calibration is complete, you're ready to start the test

Performing the Test

Starting the Test

Step 1: After calibrating, tap the "Start Test" button

Step 2: The test will run for 1-2 minutes

Step 3: Simply look at the screen naturally during this time

During the Test

What to Do:

  • Look at the screen with a relaxed gaze
  • Blink naturally as you normally would
  • Stay relatively still (small movements are fine)
  • Breathe normally and stay relaxed

What NOT to Do:

  • Don't try to force or control your blinking
  • Don't stare without blinking
  • Don't blink excessively or unnaturally
  • Don't move your head around significantly

Live Metrics

While the test is running, you'll see real-time information:

  • Current blink count
  • Blink rate (blinks per minute)
  • Test progress and time remaining

Stopping the Test

Manual Stop: Tap the "Stop Test" button at any time to finish

Automatic Stop: The app will automatically stop after the recommended duration (usually 1-2 minutes)

Tips for Best Results

Optimal Environment

  • Good, even lighting on your face
  • Minimize bright backlighting or glare
  • Quiet environment to help you relax
  • Comfortable temperature (not too cold or hot)

Physical State

  • Well-rested eyes (avoid testing when very tired)
  • Not immediately after screen time
  • Contact lens wearers: remove lenses if possible
  • Blink naturally before starting to moisten eyes

Mental State

  • Relaxed and calm
  • Not rushed or stressed
  • Focused but not tense
  • Natural breathing

When to Test

  • Best times: Morning or mid-day when rested
  • Avoid: Late evening when tired
  • Avoid: Immediately after long screen sessions
  • Avoid: When eyes feel strained or dry

Recalibration

When to Recalibrate

You may need to recalibrate if:

  • You wear glasses sometimes but not others
  • Significant changes in lighting conditions
  • You've changed your appearance (new glasses, etc.)
  • Test results seem inconsistent or inaccurate

How to Recalibrate

Step 1: Go to the Blink Test screen

Step 2: Tap the settings or menu icon

Step 3: Select "Recalibrate"

Step 4: Follow the calibration process again

Troubleshooting

"Face Not Detected"

  • Ensure adequate lighting
  • Position your face in the center
  • Remove any obstructions (hair, hands)
  • Try cleaning your camera lens

"Eyes Not Recognized"

  • Make sure your eyes are fully visible
  • Remove sunglasses or dark glasses
  • Increase ambient lighting
  • Open eyes fully during calibration

Inconsistent Results

  • Recalibrate the system
  • Ensure stable positioning
  • Minimize head movement
  • Test in better lighting

āš ļø Medical Disclaimer

The Blink Test is an informational tool and is not intended to diagnose, treat, cure, or prevent any disease. If you have concerns about your eye health or notice changes in your vision or blinking patterns, consult an eye care professional or healthcare provider.