The HOTV Test chart is a visual acuity chart used in the field with children or when there is a communication barrier. The test set includes: • One HOTV Test chart, Two isolating masks (1" x 1" hole and 1" x 4.5" slot), Response key, Flash cards and Instructions. • Crowded line sizes from 20/100 to 20/16 equivalent. • Chart size is 9" x 14" (22.9 cm x 35.6 cm). • 10 feet, 3 meter testing distance.