This chart is designed for testing at 3 meters and has an acuity range 24M to 1.5M (20/160, 6/48 to 20/16, 6/4.8 equiv). Two smaller groups 6M to 1.5M for repetitive testing (20/40, 6/12 to 20/16, 6/4.8 equiv). 

Measures 23 X 35.5 cm and can be wall mounted or used with our SDT-399-LSV Illuminated Cabinet. 

Made of shatter proof polystyrene, this Landolt "C" eye chart is used world wide to test visual acuity. vision notations and international notations are included to help aid in the vision screening process.