Designed by Luisa Mayer, Ph.D. and Bruce Moore, O.D.
Can be wall-mounted.
This HOTV chart uses a 50% spacing for the MassVat design. Each line is 50% the size of the optotypes it surrounds. By using this calibrated spacing, true contour interaction can occur. This help the child while testing and provides more accurate results. Also, by achieving this, the lines help to detect early signs of Amblyopia.
Dimensions: 20 × 13 × 1 in
Chart Notations - Snellen: 20/200 to 20/8
Chart Notations - 6 meter: 6/60 to 6/2.4
Chart Notations - Decimal: .10 to 2.50
Chart Size (Inches): 18×10 in
Chart Notations - 10 foot: 10/100 to 10/4
Chart Notations - LogMAR: 1.0 to -0.4
Chart Size Other (cm): folds 46×25.5 cm
Chart Size Other (inches): folds 18×10 in
Chart Size (cm): 46×51 cm
Utilize with a Cabinet: No
Patient Type: Pediatric, Preliterate
MassVAT Chart: Yes
ETDRS Format: No
Chart Distance: 3m / 10ft
Translucent Chart: No
Optotype Arrangement: Single or Isolated Row
Contrast Level: High
Utilize with which Cabinet: None
Chart Notations - Munit: 30M to 1.2M