Chart has a cord attached that helps set the correct viewing distance. Measures acuity of 20/400 to 20/10 on front. MassVat rectangle on back with 20/100 to 20/16 help the patient's concentration on each line. Also, the design of the MassVat rectangle provides adequate contour interaction. Helps detect amblyopia and other foveal problems.
Chart has cord for easily achieving proper testing distance.
Near Vision Testing at 40cm: 8M (20/400) to .20M (20/10)
Memorization can alter testing results and create an inaccurate record for the patient. This near vision chart features multiple groups for repetitive testing to help minimize memorization. This helps to create a more accurate and reliable vision chart that yields repeatable results.
Each side is different to minimize memorization.
Dimensions: 12 × 9 × 1 in