A blind spot ?? a small area th?t ?? completely without vision, ?n? everyone h?? a natural blind spot, located ?n top ?f th? optic nerve inside th? eye. Th?? m??ht n?t b? immediately visible ?r noticeable, ?? wh?t one eye lacks, th? ?th?r w??? compensate f?r, ?n? th? human brain h?? th? tendency t? fill ?n ?n? gaps ?n wh?t w? m??ht b? seeing.
H?w???r, b? covering one eye, ??? ??n discover ???r natural blind spot, wh??h w??? m?k? ?t difficult f?r ??? t? see things th?t ?r? directly ?n front ?f ???. Th? natural blind spot ??n ???? b? exploited ?n order t? ?r??t? optical illusions.
Things Required:
- A sheet ?f plain paper
- A black marker
1 G?t a piece ?f plain white paper ?n? pin ?t onto a wall directly ?n front ?f ???. M?k? sure th? paper ?? n?t lined, ?n? ???? n?t h??? ?n? creases ?r spots ?n ?t, ?? th??? w??? come ?n th? way, ?n? obstruct ??? fr?m discovering ???r blind spot.
2 Th?n, face th? piece ?f paper directly, ?n? using ???r left hand, position ???r index ?n? middle fingers ?? th?t th?? ?r? roughly ?? far apart ?? th? natural distance between ???r eyes ? f?r th?? purpose, ??? w??? need t? hold th?m up t? ???r eyes, t? measure th? distance. Th?n, keep th?m th? same distance apart, ?n? ????? th?m ?n th? page.
3 Keep ???r fingers th?r?, ?n? w?th ???r r??ht hand, pick up a black marker ?n? m?rk ?n X over th? area wh?r? ???r index finger ??, ?n? ?n O over th? area wh?r? ???r middle finger ??. D? n?t m?k? th? X ?n? O t?? large ?r t?? small ?n size ? th?? ?h???? b? roughly less th?n a square centimetre.
4 Now, remove ???r left hand, ?n? hold th? piece ?f paper ?n ???r hand. Hold ?t ?t arm?s length, ?n? close ???r left eye. Th?n, look ?t th? X using ?n?? ???r r??ht eye.
5 Focus ???r eye ?n ?t, ?n? th?n slowly ?t?rt bringing th? paper closer t? ???r face, ??? th? wh??? keeping ???r r??ht eye fixed ?n th? X. Th? point wh?r? th? circle disappears fr?m ???r sight ?? ???r blind spot ? th?? w??? generally b? wh?n th?r? ?? roughly 20-25 cm ?f distance between ???r eye ?n? th? paper.
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Source: http://mybodyhealth.net/how-to-find-your-natural-blind-spot/
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