七麦数据

iVisionTester by Simon Wilson
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Compare/rank your visual sensitivity in 4 different categories (Red, Green, Blue, Light/Dark) with others in your age group online in 5 easy steps.

Perfect to compare/challenge your older/younger colleagues for visual superiority! It may also be useful as a tool to identify visual problems prior to an optician visit.

iVisionTester by Simon Wilson
=============================

Compare/rank your visual sensitivity in 4 different categories (Red, Green, Blue, Light/Dark) with others in your age group online in 5 easy steps.

Perfect to compare/challenge your older/younger colleagues for visual superiority! It may also be useful as a tool to identify visual problems prior to an optician visit.