I was having a discussion with a friend of mine recently about blindness and I was wondering if there are any tests to prove that someone is blind.

There are obviously the simple "can you see this" type tests, but are there any full proof ways to check to see if someone is faking the blindness or something?

also semi related: does anyone have a link to the video of the blind guy playing starcraft?

Lycaeus

United States1420 Posts

December 17 2010 23:56 GMT

Who knows, maybe use a light on the individual to see if his pupils dilate or something...? Anyways, there's varying degrees of being blind, some could have partial vision and still be considered legally blind.

Argoneus

Czech Republic283 Posts

December 18 2010 00:01 GMT

Well.. actually.. dunno. What I would do is put the subject into a room with nothing but a muted TV with interesting action movies, and let the person be there for 12 hours under vision of a hidden camera. I think any faker would glance at the tv out of boredness.. (Stupid idea, I know)

Stenstyren

Sweden619 Posts

December 18 2010 00:02 GMT

On December 18 2010 08:56 Lycaeus wrote:
Who knows, maybe use a light on the individual to see if his pupils dilate or something...? Anyways, there's varying degrees of being blind, some could have partial vision and still be considered legally blind.

A person can be blind and still have his eyes react to light etc. Oftentimes the problem lies in the connection between the eye and the brain, not the eye itself so the eye still functions normally.

What you could do is tape his eyelids open and direct some really strong light into the eyes, if he is not blind he will try to get away from the light after a while since it will hurt. Just a guess though.

floor exercise

Canada5847 Posts

December 18 2010 00:05 GMT

I don't think there are many mysteries about the eye anymore. They can check your optic nerve quite easily and determine whether or not your eyes are functioning. We may not have the answers to fix many things but they can definitely tell if you are full of shit

Urnhardt

United States110 Posts

December 18 2010 00:05 GMT

yeah, couldn't you just like, shine a bright flashlight into their face and see whether or not they react to it? seems easy enough

FlameSworD

United States414 Posts

December 18 2010 00:06 GMT

why would someone fake being blind o-o

RedMorning

Canada117 Posts

December 18 2010 00:06 GMT

Show them a naked picture of rosie o'donnell and if they don't react...they are blind...if they aren't...they will probably become blind.

Fa1nT

United States3423 Posts

December 18 2010 00:10 GMT

stick your finger really close to their eye

99.9% of people will not be able to have no reaction to that, they will flinch or something

Redmark

Canada2129 Posts

December 18 2010 00:13 GMT

#10

On December 18 2010 09:10 Fa1nT wrote:
stick your finger really close to their eye

99.9% of people will not be able to have no reaction to that, they will flinch or something

I don't let anything get within like a meter of my eyes lol.
Eye damage is one of those things that really freak me out (my vision is starting to go bad too so D: )

StormWeapon

United States159 Posts

December 18 2010 00:29 GMT

#11

On December 18 2010 09:13 Redmark wrote:
I don't let anything get within like a meter of my eyes lol.
Eye damage is one of those things that really freak me out (my vision is starting to go bad too so D: )

I know what you mean lol, my right I is practically useless after a piece of flying glass ripped open the lens, cornea, and retina.

Just figured I'd share that and give you the willies:p

NotGood-

United States134 Posts

December 18 2010 00:32 GMT

#12

Some causes can be tested for, some cannot.

danl9rm

United States3111 Posts

December 18 2010 00:33 GMT

#13

doctors spin something like this:
+ Show Spoiler +

http://www.google.com/imgres?imgurl=http://www.wired.com/images_blogs/photos/uncategorized/2008/04/13/spiral.jpg&imgrefurl=http://www.wired.com/dangerroom/tag/dr-inbox/&usg=__-LWc0dSutLaGwGx0I_JVPoBF930=&h=452&w=450&sz=65&hl=en&start=0&zoom=1&tbnid=gYZsVmo2zeVLAM:&tbnh=150&tbnw=149&prev=/images?q=spiral&hl=en&sa=X&biw=1600&bih=1109&tbs=isch:1&prmd=ivns&itbs=1&iact=rc&dur=623&ei=0QAMTZTAL4OC8gajtMDJDQ&oei=0QAMTZTAL4OC8gajtMDJDQ&esq=1&page=1&ndsp=48&ved=1t:429,r:4,s:0&tx=16&ty=97

if the patient's eyes focus on the middle, they're not blind. supposedly, it's impossible not to focus on the middle. that's how i understand it, anyway. i could be wrong.

Joementum

787 Posts

December 18 2010 00:40 GMT

#14

You could just punch them in the face. If they are blind, you apologize and say you fell into them. If they aren't blind, then they will most likely flinch or get out of the way.

Severedevil

United States4839 Posts

December 18 2010 00:40 GMT

#15

On December 18 2010 09:06 RedMorning wrote:
Show them a naked picture of rosie o'donnell and if they don't react...they are blind...if they aren't...they will probably become blind.

High-stakes testing!

Duban

United States548 Posts

December 18 2010 00:53 GMT

#16

On December 18 2010 09:05 Urnhardt wrote:
yeah, couldn't you just like, shine a bright flashlight into their face and see whether or not they react to it? seems easy enough

The reason a bright light hurts your eyes is because the lens focuses the light on a small point in the back of the eye, like frying an ant with a magnifying glass. I think the heat will be uncomfortable regardless of if you can see or not.

Kinky

United States4126 Posts

December 18 2010 00:56 GMT

#17

On December 18 2010 09:53 Duban wrote:

Show nested quote +

The reason a bright light hurts your eyes is because the lense focuses the light on a small point in the back of the eye, like frying an ant with a magnifying glass. I don't think you have to be able to see to react to it.

Hmm, I'm actually wondering this too. I'm not too sure on the details of blindness, but if you shine a bright flashlight into someone's eyes their iris shrinks to accept less light and vice versa for darkness. Would blind people's eyes not react the same way?

semantics

10040 Posts

December 18 2010 00:59 GMT

#18

On December 18 2010 09:13 Redmark wrote:

Show nested quote +

I don't let anything get within like a meter of my eyes lol.
Eye damage is one of those things that really freak me out (my vision is starting to go bad too so D: )

I wonder how you eat...

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