March 15, 2022
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Articles
March 11, 2015
Low Contrast Sensitivity Tests
Of the three aspects of visual functioning: visual acuity, visual field and contrast sensitivity, the last one receives far less ...
500 Shades of Grey?
A certain Fifty Shades of Grey has gotten the lion’s share of attention in the media and in popular culture, ...
February 16, 2015
The Radner Reading Chart; a Highly Standardized Multilingual Reading System
As the trusted leader in the production and development of vision testing devices Precision Vision scourers the world in search ...
Archive
March 21, 2014
Patti Pics™ Vision Testing System
Patti Pics™ Vision Testing System Patti Pics™ were introduced in 2003 as an improved test for vision screening and ...
Snellen Eye Test Charts Interpretation
Snellen designed his optotypes on a 5×5 grid, on which the line thickness is one unit and the letter width and ...
Measuring Snellen Visual Acuity
Measuring Snellen Visual Acuity Snellen designed his optotypes on a 5×5 grid, on which the line thickness is one unit and the ...
