Contrast sensitivity test comparable to the Small Letter Contrast Test.
Detects subtle effects of defocus, low luminance and glare.
Log CS increases 0.25 steps per row (0.05 log CS/letter).
Each line on the Rabin Contrast Sensitivity Test is a lower contrast than the one before it, using Log CS steps. This progression in contrasts helps to identify the patient’s contrast sensitivity. Furthermore, the test helps to detect subtle effects such as defocus and low luminance and glare.