Stephenson:Neal:Quicksilver:71:eyeball experiments (Brett Kuehner)
From the Quicksilver Metaweb.
Something similar is described in one of Isaac Newton's notebooks, experiments 58 and 59, where Newton writes, "I tooke a bodkine gh & put it betwixt my eye & [the] bone as neare to [the] backside of my eye as I could"
You can find more (including a diagram from the notebook) at: http://www.lib.cam.ac.uk/Exhibitions/Footprints_of_the_Lion/private_scholar.html