Mixed Contrast Card. Reading Acuity On One Side, Letter Acuity on Other Side. Both sides calibrated for 40cm and include high contrast and low contrast (20% Weber/ 10% Michelson) on the same chart face.
The print sizes follow the standard logarithmic sequence. Each line of text has the same number of characters. Basic reading assessment is important, since it may show the effect of para-central scotomata that do not yet interfere with central letter acuity. Each set comes with complete instructions, background and recording sheet for scoring.
The print sizes follow the standard logarithmic sequence. Each line of text has the same number of characters. Basic reading assessment is important, since it may show the effect of para-central scotomata that do not yet interfere with central letter acuity. Each set comes with complete instructions, background and recording sheet for scoring.
Language: English
Chart Distance: 40cm / 16in
Translucent Chart: No
Cord: Yes
Chart Notations - Snellen: 20/400 to 20/16
ETDRS Format: Yes
Optotype Arrangement: ETDRS Format - Logarithmic
Chart Size (Inches): 8.5×11 in
Optotype: SLOAN
Chart Size (cm): 21.59×27.94 cm
MassVAT Chart: No
Contrast Level: Mixed
Contrast Level Value: 10%, 100%
Utilize with which Cabinet: Nonev Patient Type: General/Literate
Utilize with a Cabinet: No
Chart Notations - VAS: 35 to 105
Low Contast Value: 100%, 10%
Chart Notations - Munit: 8M to .32M
Chart Notations - Decimal: .05 to 1.25
Chart Distance: 40cm / 16in
Translucent Chart: No
Cord: Yes
Chart Notations - Snellen: 20/400 to 20/16
ETDRS Format: Yes
Optotype Arrangement: ETDRS Format - Logarithmic
Chart Size (Inches): 8.5×11 in
Optotype: SLOAN
Chart Size (cm): 21.59×27.94 cm
MassVAT Chart: No
Contrast Level: Mixed
Contrast Level Value: 10%, 100%
Utilize with which Cabinet: Nonev Patient Type: General/Literate
Utilize with a Cabinet: No
Chart Notations - VAS: 35 to 105
Low Contast Value: 100%, 10%
Chart Notations - Munit: 8M to .32M
Chart Notations - Decimal: .05 to 1.25
