Max
|
don't know, but squinting doesn't work, remember episode of Seinfeld, George is squinting and thinks he saw two people kissing but it was a horse and police officer... |
|
tampahitman
 |
We squint to avoid some sunlight so that our pupils will widen to take in more information.
Yes, it works. |
|
Mars
|
This is because when we squint, we narrow and tighten our feild of vision, thus focusing on the object more clearly. when we squint, less light comes into the eye from unwanted places and more light comes from the object we are trying to see. |
|
Patrick K
|
I suppose we try to focus on the object, and enhance the features.
Maybe some evolutionary trait??
I think it works. |
|
cool_anks
|
When we squint the lens inside our eye, squeezes too. That makes the focal length of the lens be at a more distance then the usual.
Hence trying to squint can make things at a distance appear closer, clearer. |
|
Jaden
|
I believe squinting changes the shape of your eyes, like for instance I wear contacts/glasses. but when i'm not wearing them, I can actually apply pressure to my eyes and I can see things more clearly. Squinting has this same effect, with less effort. |
|
Paul MB
|
When light goes through a window that has parallel surfaces, it sort of bends a little, then get's bent back and goes straight through, in effect.
When we use a lens, the light rays that hit the angled surface is also bent, then goes through the lens itself, hits the other surface which interfaces with air, and with the changes in refractive index or how much that material will bend the light, the light is bent again. Eventually all the light rays are redirected so that they cross the center UN-DEVIATED light ray at a point. this point is the focal point of the lens.
When we squint or pinhole, we eliminate the bent rays and just use the undeviated or minimally deviated ones so that our depth of focus is very large and things appear much clearer. This is the basis of pinhole glasses. One just uses the central light rays.
That's really all there is to it. |
|
S ♥ S
|
to focus on that object, by squinting our eyes we only focus on that one object.
It works but causes headaches. |
|
filibusta00
|
Because when you squint, it causes your pupils to enlarge and allow more light into your visual receptors. Yes it works slightly. |
|
Bob the Boat
|
It helps in strong light, so the optic nerves have less information to deal with, so the brain department can assimilate what you are looking at a bit quicker.
In the land of the blind, the one-eyed man is king |
|
timberland
 |
the muscles behind your eyes push and your lids squint to hold them in place.
so it helps your pupils adjust to whatever long distant vision it may carry...halps you focus better. |
|
John H
|
Hey, good question. (I suspect it is more for Old people than Young)
The answer is that we use our eyes in much the same way a camera uses its lens to focus images.
The lens in the eye however works in an unusual way, in that to change the focal length, the muscles in the eye squeeze or relax the grip on the lens, greater pressure, the wider the lens becomes and the further the focal length (the distance to the retina remains fixed obviously).
As people get older, and with certain diseases, the lens becomes less pliable, and a greater effort is required to compress the lens to achieve the desired focus, so squinting helps by using additional muscles to force the lens to the correct focal length to enable the image to be correctly focused on the retina (to be deciphered as sight).
Yes it really works. |
|
Why So Serious
 |
when you squint your eyes vision focuses more clearly. you close your eyes a bit so you dont see as much from the top or bottom only the middle and since you see the middle your eye focuses its vision their more allowing you to see farther
and yes it really does work its a scientific/medical fact |
|
Amy B
|
haha i just tried it and it didnt really work for me!
soetimes if people have reeeeally bad visoin they tend to squint (Who knows why!) |
|
Pedestal 42
|
Unless it is so bright that the half-shutting of the eyes helps by *reducing* the amount of incoming light and glare,(url) only Buffy and Red-winged Blackbird are on the right track.
If there is an uncorrected refractive error, part-closing the eyes produces a smaller effective pupil, and hence a better depth-of-focus effect and less blur.
Looking in the distance, without necessary glasses, through a 1mm hole in a piece of paper or card demonstrates this "pinhole camera effect" quite markedly.
If there is no refractive error the effect is marginal or nonexistent. |
|
Buffy
|
I don't know why we do it but it works for me. I am near-sighted and when I don't have my glasses on, and I squint to see a road sign or something, it becomes a little more clear. Not much, but enough. |
|
DODGERS FAN
|
It works, all right. In fact, the word "myopia" (nearsightedness) comes from the Greek words myein (shut) and ops (eye). When you squint, it's like reducing the aperture of a camera lens: You reduce the diameter of your visual lens. This gives you a longer depth of focus. |
|
| |
|
Health
Forum 
Optical 
No Spam
Adult 
Gambling
Unfinished
Deception
Plagiarism
Not English
Large Text