Randot Stereotest (Stereo Optical)

235,00 excl. BTW

The Randot Stereotest is aimed for adult stereo testing, but also includes an animal portion for pediatric testing. Adult patients are asked to identify six geometric shapes during testing. This test helps to test the patient depth perception along with normal stereo vision. Adult testing involves 400 to 20 seconds of arc, and pediatric testing involves 400 to 100 seconds of arc.

The test will be delivered including 1 pair of glasses.

 

 

 

The Randot Stereotest is aimed for adult stereo testing, but also includes an animal portion for pediatric testing. Adult patients are asked to identify six geometric shapes during testing. This test helps to test the patient depth perception along with normal stereo vision. Adult testing involves 400 to 20 seconds of arc, and pediatric testing involves 400 to 100 seconds of arc.

The test will be delivered including 1 pair of glasses.

RANDOT stereotest

The RANDOT Stereotests provide the opportunity to achieve
excellent validity and reliability. Binocularly devised random dot patterns, made popular by computer technology, require the individual to extract a form figure from ground without the help of any monocularly visible contours. As disparity is reduced, however, the subject needs additional help to separate the form of figure from ground, so monocular contour is added. But whether homogeneous or diverse, figure and ground are contiguous with no lateral or vertical distance between them to influence judgment. Although the homogeneous RANDOT test prescribes a “form” response, it is valid if there is perceived only “something” or “nothing” at the proper locations. The RANDOT Stereotests provide three variations to facilitate testing of individuals at different levels of comprehension as well as a gradient of disparity:

  1. Large homogeneous areas containing simple forms at two levels
    of gross disparity, with each set having one blank to act as
    control.
  2. Cartoon animals to attract the interest of young children are
    arranged at three gross levels of disparity.
  3. Contoured circles at ten levels of disparity provide a finely
    graded sequence for critical testing.

Instructions RANDOT stereotest

TO ADMINISTER, hold the test upright before the subject to maintain the proper axis of polarization; also, do not permit the head to tilt to the side. Provide adequate light, but avoid reflections from the surface of the test- a dark area or curtain behind the subject helps. Although the tests are graded for 16 inches, some variation in distance should have little effect on the score. Polarizing viewers must always be worn-over prescription glasses, if used. For the bifocals wearer, position the test properly for near-point viewing. Impaired acuity itself may blur the random dot pattern to a point where an otherwise normal person cannot separate a disparate form from the background.

How to clean?

For stereotests and 3-D viewers/glasses, clean and disinfect the surface area gently with disinfectant wipes or a soft, slightly damp, and lint-free cloth with 70% isopropryl alcohol. Never spray alcohol directly on the surfaces.