The CSV-1000 offers six test faces to provide contrast sensitivity testing:

CSV-1OOOE
the most widely used contrast sensitivity test in the world

CSV-1OOORS
used for screening refractive surgery patients

CSV-1000S
used for in or out of office screenings and for cataract evaluation

CSV-1000SLanC
provides the same tests as the 1OOOS, except that the acuity test is presented in Landolt C format.

CSV-1000CVA
evaluates both contrast sensitivity and low contrast acuity

CSV-1000-1.5CPD
special test face designed specifically for Food and Drug Administration clinical trials