Colenbrander Mixed Contrast Chart

Contrast sensitivity testing is accomplished worldwide by eye doctors in more than 60 countries using the CSV-1000 instrument. The ease of use, standardization and accuracy make it a mainstay for measuring the functional vision for cataract patients, evaluating refractive surgery and IOLs and for assessing disease progressing and treatment. Please review the images and text below to learn about the various contrast sensitivity test faces that can be used with the CSV-1000. (Please visit this page for background information describing the  basics of contrast sensitivity.

With the CSV-2000, you have the power to test for more than just acuity and contrast sensitivity

AcQviz measures the monitor light level and adjusts the level to 85 cd/m2.

The CSV-2000 is the only clinical digital vision testing device that automatically calibrates the monitor lighting so that all testing is conducted at the same light level. This standardization ensures consistent vision test results from room-to-room and from practice-to-practice. Auto-calibration is accomplished through patented technology from Guardion Health Sciences (Parent Company of VectorVision), called AcQviz.