ESV-3000

The ESV-3000 ETDRS the only large-format standardized ETDRS testing device, allowing for testing up to 20/200 ETDRS Acuity at a distance of 4 meters.

Why the ESV-3000

Like the CSV-1000, it uses patented (Patent # 5,078,486) self-calibrated test lighting. The ESV-3000 device incorporates highly advanced LED light source technology. The auto-calibration circuitry constantly monitors the LED light source and calibrates the test luminance to 85 cd/m² or 3 cd/m². Other ETDRS testers are not standardized and have no circuitry to control the test lighting. They use “off-the-shelf” non-standardized fluorescent bulbs that require a bulb “burn-in” period. The bulbs must be constantly replaced and each time a bulb is replaced, there is an additional “burn-in” period. No testing can be accomplished during the “burn-in” period.

Highlights and benefits

ESV-3000

The ESV-3000 is the first and only LED-driven ETDRS testing system that auto-calibrates to standardized light levels for clinical trials and for more accurate clinical use.

Auto-Calibration

Offers auto-calibration for three different testing luminance levels for clinical trials, mesopic, photopic and high photopic.

A variety of interchangeable randomized test charts
Auto-calibrates light levels for up to three pre-set testing luminance levels

No Burn-in Period

Unlike fluorescent-based ETDRS testing cabinets, the ESV-3000 requires no bulb burn-in period.

A variety of interchangeable randomized test charts
Auto-calibrates light levels for up to three pre-set testing luminance levels

Large Format

Allows ETRDS testing from 20/10 to 20/200 in the same setting.

A variety of interchangeable randomized test charts
Auto-calibrates light levels for up to three pre-set testing luminance levels

Multiple Tests

Offers a variety of interchangeable test charts, including standard LogMar, pediatric symbols, tumbling-E, Landolt – C and many others.

A variety of interchangeable randomized test charts
Auto-calibrates light levels for up to three pre-set testing luminance levels

The ESV-3000 is the only large-format standardized ETDRS testing device. The ESV-3000 allows testing up to 20/200 ETDRS Acuity at a test distance of 4 meters (The CSV-1000 has a smaller footprint and allows testing up to 20/200 at a test distance of 8 feet.). The device is operated by infrared remote control.

The ESV-3000 is designed specifically for clinical trials where large-format ETDRS testing (up to 20/200) is performed at 4 meters. Unlike other large-format back-lit devices for ETDRS evaluation, the light level is calibrated and held constant, allowing the automatic replication of testing light levels from different clinical trials locations or for evaluating before and after treatment. Other devices are not standardized and cannot provide constant test lighting for ETDRS evaluation between locations or over time. A wide variety of ETDRS LogMAR tests are available, including Chart R, Chart 1, Chart 2, Tumbling E and many others.

Why VectorVision?®

As treatments evolve, so must the testing technology

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Over the last 20 years, VectorVision testing equipment has become the worldwide benchmark for standardized contrast sensitivity, glare and ETDRS acuity testing.

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