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PRACTICAL ORTHOPTICS Visual Acuity Testing

PRACTICAL ORTHOPTICS Visual Acuity Testing. Janice Waterson Wilson and Sarah Cornelius The Royal Hospital for Sick Children, Glasgow. V.A. TESTS. FCPL Cardiff Cards Kay Pictures SGT Linear Tests (Logmar Crowded, Snellen). Birth - 1 year 1 - 2.5 years 2 - 4 years 3 - 5 years

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PRACTICAL ORTHOPTICS Visual Acuity Testing

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  1. PRACTICAL ORTHOPTICSVisual Acuity Testing Janice Waterson Wilson and Sarah Cornelius The Royal Hospital for Sick Children, Glasgow

  2. V.A. TESTS • FCPL • Cardiff Cards • Kay Pictures • SGT • Linear Tests (Logmar Crowded, Snellen) • Birth - 1 year • 1 - 2.5 years • 2 - 4 years • 3 - 5 years • Age ≥3.5 years

  3. FPL (Keeler Cards) Kay pictures LogMAR crowded test (uncrowded 3-4yrs)

  4. METHOD • Match to age/ ability • Occlude properly • Point for young children BUT • Do NOT interfere with crowding effect • Test Near and Distance

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