
Abajo se presenta una foto de la página de sus manuscritos, donde se puede leer sobre el experimento en cuestión. Pueden notar en el texto, que Newton menciona que cuando hacía presión con la cabeza de la aguja sobre la parte anterior de su ojo, veía círculos blancos y oscuros, y que podía cambiar estos círculos moviendo la aguja o el ojo (dolor!).
Luego de este experimento, Newton no parece haber afectado su vista. Posiblemente Newton sí afectó su vista con otro experimento: el de la observación directa y prolongada del sol. Newton, de forma deliberada, se puso a ver el sol directamente un largo rato para ver el efecto que tendría la radiación solar directa sobre sus dispositivos biológico de visión (ojos). Luego de este experimento, Newton pasó muchas horas en un cuarto totalmente oscuro tratando de recuperarse de la ceguera, y lo logró. No se conocen los efectos colaterales de este experimento.
Para facilitar la lectura, se presentan los siguientes textos:
58.
I tooke a bodkine gh & put it betwixt my eye & [the] bone as neare to [the] backside of my eye as I could: & pressing my eye [with the] end of it (soe as to make [the] curvature a, bcdef in my eye) there appeared severall white darke & coloured circles r, s, t, &c. Which circles were plainest when I continued to rub my eye [with the] point of [the] bodkine, but if I held my eye & [the] bodkin still, though I continued to presse my eye [with] it yet [the] circles would grow faint & often disappeare untill I removed [them] by moving my eye or [the] bodkin.
59
If [the] experiment were done in a light roome so [that] though my eyes were shut some light would get through their lidds There appeared a greate broade blewish darke circle outmost (as ts), & [within] that another light spot srs whose colour was much like [that] in [the] rest of [the] eye as at k. Within [which] spot appeared still another blew spot r espetially if I pressed my eye hard & [with] a small pointed bodkin. & outmost at vt appeared a verge of light.
Bibliografía:
http://ttp.royalsociety.org/accessible/SpreadDetails.aspx?BookID=1807da00-909a-4abf-b9c1-0279a08e4bf2¶ms=0&LangID=1&OrgID=19&o=1
http://royalsociety.org/Turning-the-Pages/
http://www.lib.cam.ac.uk/exhibitions/Footprints_of_the_Lion/private_scholar.html
http://www.famouspeople.co.uk/i/isaacnewton.html
http://www.newtonproject.sussex.ac.uk/prism.php?id=1
http://www.crystalinks.com/newton.html
Fuente:
Deliciosa-Mente