Made of a cotton/polyester blend

Combined with two of Welch Allyn's innovative technologies

accurate temperature measurements using its proprietary Peak Select System technology

half brain

they can feel peaceful again

10 ft: Wide Spaced Symbol (12 Line) Chart Discontinued Made of a cotton/polyester blend(9" x 14") Patti Pic optotype chart for vision testing at 10 feet. Used to identify amblyopia in children as young as 4 years old and for people with language difficulties. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). Patti Pics optotype features symbols that are calibrated to Sloan standards. This helps create a more accurate testing record and provides a genuine acuity history when testing young children.