From: Paul Doherty <email@example.com>
Subject: peripheral Vision Snack
I am a physicist at the Exploratorium.
The peripheral vision snack cannot be used to measure a person peripheral
vision because it is too easy to cheat.
Opthalmologists use a device which features a red blinking light in the
center and randomly flashes a tiny point of light around a uniform ggray
When the viewer sees the flash he/she presses a button. This maps the field
of view and also traces the ouitline of the blind spot.
Here is a write-up on optical perimetry exams.
Here is an on-line version of this experiment.
Here's another program
I hope this helps
Paul "But it is more complicated than that!" Doherty,
Senior Staff Scientist, The Exploratorium.
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