Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

Hit in eye with 1000mw 445nm blue laser

TuhOz

0
Joined
Aug 23, 2011
Messages
337
Points
0
Huh :thinking:

blindspot1bw.gif


Close your left eye and stare at the cross mark in the diagram with your right eye. Off to the right you should be able to see the spot. Don't LOOK at it; just notice that it is there off to the right (if its not, move farther away from the computer screen; you should be able to see the dot if you're a couple of feet away). Now slowly move toward the computer screen. Keep looking at the cross mark while you move. At a particular distance (probably a foot or so), the spot will disappear (it will reappear again if you move even closer). The spot disappears because it falls on the optic nerve head, the hole in the photoreceptor sheet.

Blind spots

Pretty Strange huh?
 





Joined
Mar 29, 2011
Messages
1,056
Points
48
everyone has a blind spot on each eye I am sure you will find it if you follow the directions and DO NOT look at the dot :D
 
Last edited:
Joined
Apr 5, 2011
Messages
909
Points
0
I found mine. Its when im very close to the screen. Im glad this thread is still alive, I almost blinded myself like 20 minutes ago, good thing I was wearing laser goggles.
 
Joined
Jul 21, 2011
Messages
1,025
Points
0
I found my blind spot a while ago, freaked me out..
Then I showed a guy at work who didn't believe me and it freaked him out :p
 
Joined
Mar 2, 2011
Messages
692
Points
0
Nope, didn't work for me lol
I detect sarcasm or?

A) Did you follow the instructions?
B) Are you an Alien?

and no this is completely serious,
You did close an eye right? becuase your eyes will "auto correct" for it if both of your eyes are open.

Both of your eyes have an optic nerve, they connect your eye to your brain, you cant see through this nerve, so you have a blind spot there.
 
Last edited:
Joined
Nov 10, 2008
Messages
4,186
Points
63
A) Did you follow the instructions?
B) Are you an Alien?

and no this is completely serious,
You did close an eye right? becuase your eyes will "auto correct" for it if both of your eyes are open.

Both of your eyes have an optic nerve, they connect your eye to your brain, you cant see through this nerve, so you have a blind spot there.

Nope I'm not an alien :D and yes i read the instructions. I still see nothing weird.
 
Joined
Mar 29, 2011
Messages
1,056
Points
48
Nope I'm not an alien :D and yes i read the instructions. I still see nothing weird.

You are either not making it right, or you are trying to convince the others you miraculously don't have a blind spot. Come on, dude just admit it. You have it too ;)
 
Joined
Mar 26, 2010
Messages
3,220
Points
0
I imagine he's either tilting his head, looking at the spot, using the wrong eye, or just not getting close enough to the image. I had to be around 5" away from the monitor for it to work. It just depends on how big the image is. It WILL happen for everyone though. If it doesn't work, your just not doing it right.
 

Ash

0
Joined
Mar 3, 2009
Messages
1,981
Points
0
It's pretty subtle.
It may just be that Silvershot doesn't notice when the dot disappears as it is in the peripheral.
 
Joined
Dec 11, 2011
Messages
4,364
Points
83
Works for me, with both eyes! I just stared at the spot and watched the cross dissappear with my left eye. I'm happy to report that boths eyes have the blind spot at the same distance from the screen.

It does matter if you are off-center of the image, too far to the left or right of the image (and the image is left justified on the post) and it won't work.
 




Top