Colenbrander Mixed Contrast Card
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Colenbrander Mixed Contrast Card

Precision Vision
SKU : 4071

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.

Mixed Contrast Card designed by Dr. August Colenbrander M.D., Ph.D. with 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.

Reading Acuity Side In your choice of:
ENGLISH Part # 4071
SPANISH Part # 4072
PORTUGUESE Part # 4073
GERMAN Part # 4074
DUTCH Part # 4075
FINNISH Part # 4076
SWEDISH Part # 4077
ITALIAN Part # 4078
FRENCH Part # 4079
NORWEGIAN Part # 4070-19
DANISH Part # 4080
TAGALOG Part #4081

This is one card of a two card set. Each card is sold separately.

SKU: 4071 Categories: ,
Brands

Precision Vision
Shipping Weight 0.5 lbs
Shipping Dimensions 11 × 8.5 × 0.25 in
Language Norwegian, Danish, Dutch, English, Finnish, French, German, Italian, Portuguese, Spanish, Swedish, Tagalog
Testing 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 None
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

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