FACT™ Contrast Sensitivity Chart

VSRC's patented Functional Acuity Contrast Test (FACT) Chart is an accurate and comprehensive sine-wave grating chart that tests functional visual acuity. Developed by Dr. Arthur Ginsburg, the FACT sine-wave grating chart tests five spatial frequencies (sizes) and nine levels of contrast. The patient determines the last grating seen for each row (A, B, C, D and E) and reports the orientation of the grating: right, up or left. The last correct grating seen for each spatial frequency is plotted on a contrast sensitivity curve.

FACT contrast sensitivity scores can also be used to generate images with VSRC's EyeView™ Functional Analysis Software which demonstrates how the world looks to your patient based on their contrast sensitivity scores.

FACT Contrast Sensitivity Charts are available in two sizes:

• Distance FACT Chart
  Includes framed wall chart, answer key, recording forms and instruction manual. 27" X 37"

• Near FACT Chart
  Includes a calibrated holder, answer key, recording forms and instruction manual.
  7" X 5"

To order your FACT Contrast Sensitivity Charts, contact Stereo Optical Company.

Please visit www.stereooptical.com for more information about the FACT chart and all the products manufactured by Stereo Optical Company

VSRC US Patent Numbers: 5,500,699, 5,414,479; FACT is a trademark of Stereo Optical Corporation.

 

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