Charts for CSV1000

A chart with Sloan Letter optotypes in proportionally spaced (logMAR) lines; line sizes range from 20/100 to 20/10 in both high contrast and 10% contrast.

The CSV1000S test 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 test is useful for cataract documentation as it provides a standard acuity score, a functional acuity score, and a real-world simulation.

The CSV-l000LV is designed for evaluating patients who have worse than 20/70 acuity. At a test distance of 1 Meter, the letter size is equivalent to 20/630 ETDRS LogMAR acuity. This test presents letters at 8 contrast levels.

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-1000ETDRS allows standardized testing of ETDRS acuity at 85 cd/m2, the light level recommended by the FDA for vision testing. Many tests are available, including ETDRS Chart R, Chart 1 and Chart 2.

The CSV-1000LH Symbol test face provides common symbols for the evaluation of illiterate or non-English speaking patients. The test is also widely used for the evaluation of children. The CSV-1000LH is in the ETDRS format. A patient prompt card is included.

The CSV-1000RS test face is used widely for screening refractive surgery patients. The test presents ETDRS LogMAR acuity from 20/10 to 20/100 and one row of spatial frequency at 12 cycles/degree.

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.