Snellen Test With Screen Calibration: Quick And Easy Way to Check Your Eye Health at Home (Free Guide!)

Snellen Test With Screen Calibration: Quick And Easy Way to Check Your Eye Health at Home (Free Guide!)

Eye Vision Test (Snellen) — The Health Wiki Snellen Eye Vision Test — The Health Wiki This app shows a series of letters (optotypes) scaled after screen calibration. It is not a replacement for a professional eye examination. 1) Screen Calibration For accurate results, calibrate your screen using a real card (e.g., credit card: 85.6 mm wide). Drag the slider until the on-screen rectangle matches your real card width. Drag the sides to match your card’s width on screen Card width on screen: 240 px Actual card width (mm): Once matched, click “Save Calibration” Save Calibration Reset 2) Test Conditions Viewing distance (meters): 6 m (standard) 3 m 2 m 1 m Mode: Both eyes Left eye only Right eye only Start Test Tip: Cover one eye (if testing one eye) and read the smallest line you can see clearly. Type the letters you see and press Check. 3) Vision Test Enter your answer (example: E T O P): Check Show Answer Important Note: This app provides only a rough indication of visual sharpness. The result does…