Chart(Distance): CSV-1000® - ETDRS Original Series - Sloan Letter (8ft/2.4m)

The CSV-1000ETDRS allows standardized testing of ETDRS and is the US standard for evaluating LogMAR acuity.

The CSV-1000ETDRS is smaller than other backlit systems for ETDRS testing and allows testing 20/10 to 20/200 at a distance of 8 feet or 20/5 to 20/100 at a distance of 4 meters. It is perfect for examination room use, where a 4 meter test distance is not available, or for clinical trials where testing beyond 20/100 is not needed, such as refractive surgery or IOL trials. Reversed ETDRS tests are also available for testing at a distance of 4 meters with a mirror.