Pelli-Robson Contrast Sensitivity Chart

eye chart

The Pelli-Robson Contrast Sensitivity Chart is available world-wide. To find a dealer in your area contact:

* In USA
Precision Vision
1-815-223-2022
http://precision-vision.com/all-products/contrast-eye-charts/mixed-threshold-contrast-charts/threshold-contrast/pelli-robsonsloanlettercontrastchart.html

* In Europe
QNET BV
Hommerterweg 286
6436 AM Amstenrade
The Netherlands
+31 46 439 8479

A discount may be granted if the charts are required for research purposes. Contact the supplier.

To print your own souvenir copy of the Pelli-Robson chart you can download an 8-bit GIF (40 KB) or a 16-bit TIFF (236 KB) file. (Choose the format you prefer. Click and hold for pop-up menu. Save to disk.) The 8-bit file gives the correct general impression, but the lowest contrasts are very inaccurate. Depending on your printer, the 16-bit file may allow you to produce the entire range of contrasts. However, contrast calibration is difficult, so for any serious research purpose we recommend obtaining a calibrated chart. You may publish this image, produced by either file, unaltered, provided appropriate credit is given:

See: Pelli, D. G., Robson, J. G., & Wilkins, A. J. (1988). The design of a new letter chart for measuring contrast sensitivity. Clinical Vision Sciences, 2(3):187-199. Copyright © 2014 D.G. Pelli and J.G. Robson. Manufactured by Precision Vision. [Click to get the PDF reprint .]

Denis Pelli and John Robson

More Pelli eye charts . . .

Another Robson eye chart ...

Updated