Which statement correctly assigns acuity chart type to chart?

Which statement correctly assigns acuity chart type to chart?

• A. Landolt C tests recognition acuity
• B. Teller acuity cards test recognition acuity
• C. Lea symbols tests resolution acuity
• D. HOTV tests resolution acuity

Answer: (A)

Recognizing what a chart asks you to identify versus simply detecting a pattern is the key idea. Landolt C presents a small ring with a gap and asks you to identify the gap’s orientation. That requires recognizing a specific shape, not just noticing a pattern, so it measures recognition acuity. By contrast, Teller acuity cards rely on detecting a grating pattern of stripes, which is a resolution (grating) measure, commonly used with infants. Lea symbols and HOTV rely on identifying familiar symbols or letters, which is also recognition. So Landolt C is the correct match because it specifically tests recognition acuity.

Recognizing what a chart asks you to identify versus simply detecting a pattern is the key idea. Landolt C presents a small ring with a gap and asks you to identify the gap’s orientation. That requires recognizing a specific shape, not just noticing a pattern, so it measures recognition acuity. By contrast, Teller acuity cards rely on detecting a grating pattern of stripes, which is a resolution (grating) measure, commonly used with infants. Lea symbols and HOTV rely on identifying familiar symbols or letters, which is also recognition. So Landolt C is the correct match because it specifically tests recognition acuity.