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Vision is a complex phenomenon, involving eyes, nerves and brain elaboration.
The optical image on the retina, for example, is flat and 3D vision of far objects, that is not due to binocular effect, is completely an effect of brain elaboration.
If optical nerves are cut, for example, a person is blind even if eyes are fully functional. Also selected nervous diseases exist inhibiting brain reception of the vision signal and causing either false vision (for example black and white or absence of 3D perception), or even blindness.
What else can I help you with?
What are some of the symptoms of astigmatism in the eye?
Astigmatism of the eye usually involves the symptoms of blurred vision. It can also mean a person will have squinting and may soon feel tired or fatigued and suffer from headaches.
What has one but cannot see?
A needle has an eye but can't see.
Is eye color a variable?
If you mean can it pass form one random person to another then no, but through your family that's how you get eye coulor. But what i find cool is some colours overpower others. Example: blue overpowers green.
Are asteroids visible with the naked eye?
yes but we should have a sharped eye a common person people cant see this
What is a spyglass usually symbolic of?
A spyglass is usually symbolic of being able to see distant objects. It has the power to see where the human eye cannot, perhaps symbolic of a third eye, or greater eye power.
What is the biblical meaning when a person can only see through the right eye?
The left eye cannot see.
Why do a person blinded in one eye cannot focus in playing bowling?
becuse the eye of player is blindness
What does caught his eye mean?
If you caught someone's eye, that means that person noticed how attractive you are.
What does eyborg mean?
A person with an electronic eye(s)
What does stink eye mean?
when u give a person attitude
What does it mean when eye contact causes a person to feel hot inside?
Probably that you're attracted to the person with whom you're making eye contact.
can you find a tigers eye in Ozark?
A person cannot find a Tiger's Eye in the Ozarks. A Tiger's Eye is the name of a gemstone. The gemstone can be found in parts of South Africa and East Asia.
What are four things that have an 'eye' but cannot see?
your PENIS a blind person a recently deceased guy and some thing else that has an eye but is unable to see
What does immortal hand or eye mean?
If you do something to some person, that person is going to pay you with the same thing.
What does eye witness mean?
A description of something that happened, according to an eye witness--that is, a person who saw thing thing happen.
Does avoiding eye contact mean a person is lying?
sometimes it does or it means there scared.
What does have an eye for mean?
If you have an "eye for something" it means you are good at spotting it - you can see things that others cannot about something. For example, "I have an eye for Van Gogh" means you can tell if a painting was his or done in his style.
