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About VisionRx
 Doctor Services

VisionRx provides a suite of computer-based, clinical-grade eye tests for professional use that can benefit a doctor's practice by improving patient throughput, lowering cost and by enabling many doctors to perform tests (many of which are reimbursable) which were previously too expensive.

The Clinical Eye Tests perform in-depth diagnostic routines for assessing visual acuity, peripheral vision, contrast sensitivity, and for detecting color defects that fully characterize both congenital and acquired color vision variations. They are also user-configurable and produce detailed, automatic scoring.

The following are among the tests that comprise the VisionRx Clinical Eye Test suite:
  • Visual Acuity: This test measures visual acuity and is used to assess nearsightedness (myopia). Various standard display sets are available, like Tumbling E and Landolt C, among others.
  • Sinusoidal Gratings Contrast: This is a test designed to assess spatial contrast sensitivity with both black-white and blue-yellow sinusoidal gratings at varying frequencies.
  • Color Plates: This test uses specially designed confusion plates based on the principle of pseudoisochromatism, in order to identify the presence of common color variations.
  • Visual Field: This test is a chromatic frequency doubling perimeter. It can be used to examine visual field and spot signs of glaucoma, neurological disorders and other diseases.
  • Contrast Sensitivity Plates: This is a test which allows standard black and white or color contrast sensitivity testing.
  • Sixteen Hue: This is a color arrangement test designed to detect chromatic discrimination loss in both congenital and acquired color variations.
  • Ninety Hue: This is a comprehensive color arrangement test which identifies chromatic discrimination loss across the entire color spectrum. It can also be used to follow the progression of disease states and the effectiveness of treatment modalities.
  • New Color: This is a color arrangement test which identifies saturation and lightness losses across the color spectrum.
  • Achromatopsia: This test compares the brightness matching behavior of achromats to normals in order to determine achromatopsia.
  • Red-Green Anomaloscope: This is a color matching test, a.k.a. Rayleigh Anomaloscope, which accurately diagnoses red-green color variations.
  • Blue-Green Anomaloscope: This is a color matching test which accurately diagnoses blue-yellow color variations.
  • Red-Blue Anomaloscope: This is an experimental color matching test which explores the red-blue spectrum.

VisionRx tests have been validated by a team of highly qualified ophthalmologists and optometrists and are available on disc, downloaded from the Internet or used online.

For additional information please contact VisionRx.

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