Copyright Bruce Waring & Associates LLC. 2011 All rights reserved
Last Update 8/25/2011
Medispec
Medical Instrument Compliance Specialists
Bruce Waring & Associates LLC
The ESV3000 contains standardized LEDs (light emitting diodes) whose light output is automatically controlled by patented internal calibration technology. When this lighting technology is combined with a universal standard power supply, the result is consistent standardized lighting that makes the ESV3000 the most accurate, easy to use, tester for evaluating ETDRS and LogMAR acuity. Simply turn on the device and with a push of a button, the ESV3000 automatically calibrates to a photopic light level of 85 cd/m2 , or a mesopic level of 3 cd/m2. These light levels are recommended by the National Academy of Sciences Committee for Vision Testing Standards and are required by the FDA for ETDRS evaluation in clinical trials.
Easy to use and operate, the Good-Lite ESV3000 is the ONLY self-calibrating ETDRS cabinet available. The ESV3000 totally eliminates dead spots, hot spots, and lighting uniformity problems associated with other ETDRS viewers. That's because the ESV3000 self-calibrates the illumination on the chart surface for both photopic (85 cd/m2) and low-light mesopic testing, using the most advanced self-monitoring LED light source patented technology available.
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