Charts for CSV1000

The CSV-1000-1.5CPD is a special test face designed specifically for Food and Drug Administration clinical trials which require the testing of contrast sensitivity at 1.5 cycles/degree under mesopic lighting conditions

The CSV-1000-1.5cpd is a special test face designed for low vision evaluation by testing one spatial frequency using a very large field size.

The CSV- 1000HOTV test face provides a LogMAR test in which only four letters are used; H, O, T and V. This test is very useful for evaluating children or patients which commonly reverse the appearance of objects. These letters were chosen because all are symmetric along the vertical axis. A prompt card is provided.

The CSV- 1000LanC test face provides a LogMAR test which presents the Landolt C in various orientations. This test is very useful for evaluating illiterate or non-English speaking patients.

The CSV-1000S test face is widely used for in or out-of-office screenings and for cataract evaluation. This test presents standard visual acuity from 20/15 to 20/200, two rows of spatial frequencies (6 and 12 cycles/degree) and a real-world driver’s scene.

The CSV-l000SLanC test face provides the same tests as the standard CSV-1000S, except that the acuity test is presented in Landolt C format.

This test is very useful when testing patients who cannot read the English alphabet.