Step 1 of 5
👁️ Free Online Vision Screening

Test Your Vision
Right Now — Online

A guided 5-step screening that checks distance vision, near vision, astigmatism, and color perception — all in your browser.

⚠️ Not a medical diagnosis. Results are estimates only.

Takes about 3–5 minutes  ·  No account needed
📏
Screen Calibration
Uses your credit card as a reference to normalize screen sizes for accuracy.
🔤
Snellen Chart
Classic distance vision test with letters in decreasing sizes.
📖
Near Vision
Tests how clearly you can read fine print up close.
🎯
Astigmatism
Radial line wheel to detect irregular focus patterns.
🎨
Color Vision
Ishihara-style plates to detect color perception deficiency.
📊
Instant Report
Downloadable report with estimates and recommendations.
⏰

Daily Limit Reached

You've used all 5 free tests for today. Rest your eyes and come back tomorrow for fresh results!

📏 Step 1 of 5 · Screen Calibration

Calibrate Your Screen

Hold a real credit card or bank card against your screen. Drag the slider until the blue rectangle exactly matches the size of your card.

ADJUST TO MATCH YOUR
CREDIT CARD ↔
Card width: 85.6mm
💳 A standard credit / debit card is 85.6 mm wide × 54 mm tall (ISO standard)
🔤 Step 2 of 5 · Distance Vision

Snellen Eye Chart

Sit back at arm's length (~60 cm) from your screen. Cover one eye. Look at the chart and select the smallest row you can clearly read.

👁️ Keep one eye covered — test both eyes if possible
What is the smallest row you can clearly read?
📖 Step 3 of 5 · Near Vision

Near Vision Test

Hold the screen at your normal reading distance (~35–40 cm). Without reading glasses if possible. Select the smallest paragraph you can comfortably read.

🎯 Step 4 of 5 · Astigmatism

Astigmatism Wheel

Sit at arm's length. Fix your gaze on the blue dot in the center. Without moving your eyes, do any of the lines look darker, bolder, or sharper than others?

Which best describes what you see?
🎨 Step 5 of 5 · Color Vision

Ishihara Color Test

Look at each circle below and type the number you see in the field beneath it. View in normal room lighting. If you see no number, type X.

📊 Your Results

Vision Screening Report

These are estimates based on your responses — not a clinical diagnosis.