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Eyes

The eyes are organs. They detect light, regulate the light through a diaphragm, focuses it through adjustable lenses and converts them into electo-chemical impulses in our neurons by photoreceptor cells called rods and cones. The image is converted into a set of electrical signals that are transmitted to the brain via neural pathways that connect the eye to the optic nerve and visual cortex of the brain. In short, eyes are very complex optical systems that convert light to distinguish objects and movement around us.

11,082 Questions

Are Nancy ajram's real color eyes is blue?

Yes, although most Arab singers usually wear light contacts, Nancys are actually natural, even Nancy daughter who is a baby has her blue eyes. Nancy had those eye color since her childhood photos

Does a blind man blinks his eyes?

Some do and some don't. Some blind men/women have their eyes completely shut, so they wouldn't have to blink. Some blind men/women have their eyes open, so they would usually blink.

Do all people with brown eyes have a common ansester?

No, people with brown eyes do not necessarily have a common ancestor. Eye color is determined by multiple genes that can be inherited from various ancestors, so there is no single common ancestor for all people with brown eyes.

Why can't i open my eyes in a dream?

Closing or having trouble opening your eyes in a dream could be associated with feelings of being unable to see or understand a situation clearly in your waking life. It might also indicate a desire to avoid facing a particular issue or reality. Remember, dreams are highly subjective and can have various interpretations based on individual experiences and emotions.

What you do if have burning eyes from chloramphenicol eye cream?

If you experience burning eyes from chloramphenicol eye cream, immediately rinse your eyes with water for at least 15 minutes. Avoid rubbing your eyes. If the burning sensation persists or if you have any other concerns, seek medical attention promptly.

Is bleeding behind the eye dangerous?

Yes, it can be. Just last September I bounced a ball into my eye(left) and everyone thought I was just going to get a black eye. But no. It had expanded the eye and it it had pressed on something that had made it bleed behind. My coloured ring outside the pupil started filling up with blood and turned black, I had to do no sports and had to sleep sitting up for two months! My left eye is still bigger and the pupil is visually bigger and I could've gone blind. But it depends how you do it most of the time.

Are blue eyes or hazel eyes prettier?

It all Depends on your face shape, body shape, facial marks and hair colors.

i perfer Brown eyes only becasue i have them but guys lok better with green or hazel.

Both are beautiful

Is there a upanishad anything which links with netra or eye?

Yes, the Upanishads mention the concept of the "third eye" or inner eye, which is not related to the physical eyes but represents inner vision or spiritual insight. This metaphoric "eye" is often associated with intuition and higher consciousness, as found in texts like the Yoga Upanishads.

What and rods in your eye allow you to distinguish colors and shapes?

Cones in your eyes are responsible for distinguishing colors, while rods are responsible for detecting shapes and movement in low-light conditions. Both types of photoreceptor cells work together to provide you with your sense of sight.

Is there a word for someone who is born with different colored eyes?

If you have different coloured eyes it is called heterochromia but is nothing to be worried about. I'm not just saying that because I am but you know. You should be proud of it because it is to rareand special to be taken the mick out of! You could either have: 1. Blue and Green eyes 2. Blue and Brown eyes 3. Brown and Green eyes (Like Me) So their you have it nothing to be ashamed of!

Who owns Pearle Vision?

Luxottica Group.

You're welcome

-GODFLESH

What does P1 for the left eye mean on an eye prescription?

"P1" on an eye prescription typically refers to a measurement for the pupillary distance of the left eye. This measurement helps ensure that the lenses in your glasses are correctly positioned to align with your eyes, providing you with clear and comfortable vision.

What is a star under your eye?

A star under your eye is a cosmetic trend where individuals apply a small star-shaped sticker or tattoo under their eye as a form of decoration or self-expression. It is a unique and temporary way to enhance one's appearance and add a touch of creativity to their makeup look.

How bad is 20 50 vision?

There are lots of different types of cameras. Some take pictures of things far away. Others take pictures of things close up, like a leaf or flower or ?. You have the close up kind.

For you to be able to see clearly at a distance, you'll need to place a lens in front of your camera (eye) that moves the focal point where you are focused out to distance. Then you'll see at distance well.

The 20/80 thing is a measure of the angle of vision. Most people see an item 1 degree tall. The letter E has 3 lines and two spaces. If each is 1 degree, then the whole thing will be 5 degrees high. At 20 feet, the size of that letter is a certain size. Further out, 5 degrees is larger. At 40 feet, it's twice as large as the letter at 20 feet. At 80 feet, it's 4 times larger than the one at 20 feet.

When a 'normal' person stands back 80 feet, he can see the 80 foot letter. YOU have to be at the 20 foot distance to see that same letter, so without your glasses, you can't see well as you're out of focus.

How out of focus? The power is equal to one over the distance in meters. If you were focused at a meter away, your eyes would be too 'strong' as you are focused close by. You'd be a +1.00 too strong. So you'd need a -1.00 to move that focal point out to infinity.

If you were focused at a half meter away, you'd be +2.00 too strong, need a -2.00 to move that focal point out.

Third of a meter, +3.00 to strong, need a -3.00.

Quarter of a meter, need a -4.00

Fifth of a meter, -5.00

Sixth of a meter, -6.00.

A 20/80 vision at distance, without correction isn't too bad, not really.

-Yahoo answers

What does I am whole but incomplete I have no eyes yet i see you can see and see right through me my largest part is one fourth of what I once mean?

This riddle describes a mirror. A mirror is whole but incomplete without a reflection, doesn't have eyes but can "see" by reflecting, and its largest part (the reflective surface) is one fourth of the whole mirror.

How do pupils react to light while on heroin?

Heroin relaxes the muscles in your body. The iris is the muscle in your eye that controls the size of your pupil and how much light is let in. When you take heroin it relaxes this muscle making your pupil appear smaller. "uppers" like cocaine will do the opposite.

How long an image persist on retina of human eye?

An image typically persists on the retina of the human eye for about 1/20th of a second. This phenomenon is known as iconic memory or persistence of vision. It allows us to perceive a continuous image even though the retina receives discrete snapshots of visual information.

Do your eyes have holes in them?

No, the eyes do not have holes in them. The cornea is a clear protective layer that covers the front of the eye, and the pupil is an opening that allows light to enter the eye.

How many eyes do hornets have?

Hornets have 5 eyes – 3 small simple eyes located on the top of their head (ocelli) and 2 larger compound eyes on the sides. The compound eyes are made up of multiple individual lenses that help hornets see movement and detect light.

What do constricted pupils look like?

Just got back from the optometrist. He dialated my pupils with drops and I look scary.

Here is a picture:

http://sphotos.ak.fbcdn.net/hphotos-ak-ash2/hs592.ash2/154424_10150340194130273_519830272_15825551_6294472_n.jpg

What does it mean when you can see someones eyes move in their sleep?

Seeing someone's eyes move rapidly in their sleep typically indicates they are in the REM (rapid eye movement) stage of sleep. This stage is associated with vivid dreaming.

Can you wear colored contacts with glasses?

Yes! In fact someone who doesn't wear glasses can also wear colored contacts if an optometrist perscribes them. You do have to have a doctor fit any kind of contact to your eye to make sure they do not harm you or your vision.

What does a far sighted and near sighted eye ball look like compared to a normal eyeball?

A nearsighted eye typically has a longer axial length, causing images to focus in front of the retina, resulting in blurry distance vision. A farsighted eye usually has a shorter axial length, making images focus behind the retina, leading to difficulty focusing on close objects. A normal eye has a balanced axial length allowing images to focus directly on the retina for clear vision at all distances.

What happens if sand was to get stuck in your eye?

well eventually your eye will either turn slightly red and then it might get infected. If not slightly read then you most likely will be fine. If it waters for severaly minutes put eye drops and close your eyes for five minutes. Dirt can cause great damage to sensetive eyes. If pain occurs to the eye after cleansing, call your doctor or go to the hospital immediatly.

What color eyes are most common in blond girls that live in the US?

The eye color that is most prevalent within the US are brown eyes. The least common is having green eyes. Blue eyes are also common but not the most prevalent but not as rare either in comparison to green.