Our pupils adjust to absorb enough light to see, but not so much that it damages our eyes. So when a bright light is shined in the eye, the pupil closes so that the eye isn't damaged. That's why doctors make you wear sunglasses after they dilate your eyes.
Your pupil gets bigger to let more light into your eye so you can see better. When you are in the light, the pupil gets smaller to block out excess light.
the pupil controls the amount of light into the eye, it becomes smaller so that less light enters the eye
Because in the dark, it needs to capture more light, which is why it gets bigger. In the light, you are already able to see, so it stays small.
The eye opens its aperture (the pupil) wider to let in more light to the retina, improving vision in darker conditions.
It contracts to limit the amount of light entering your eye in order to avoid overwhelming and possibly damaging the retina.
so less light will enter
The pupil decreases in size to lessen the amount of light allowed in, so as to prevent damage.
The eyes constrict, not dilate, when a light is shone into the eye...this is a multi-arc process going through the parasympathetic nervous system and the EW nucleus.
usually the state of the pupil is determined by the
reacting when someone flashes his or her hand to your face that includes blinking-------------------------------------------------------A reflex action is a sudden reaction to a stimuli (a change in the environment) & often acts to protect you.Some are controlled by the brain (cranial reflexes) such as when you blink as dust lands in your eye, or your pupil gets smaller as light is shone in your eye.Some reflexes are controlled by the spinal cord (spinal reflexes) such as when you touch a hot object or stand on a pin.Some reflexes can have learnt responses so they are calledconditioned reflexes. These reflexes occur without you even thinking about them e.g. walking & producing saliva when you smell food.
it can be present in young adults simply because they have elevated or higher levels of epinephrine in their blood
The phrase that means that someone's pupils contract when a bright light is shone into their eyes is "pupils reactive" ... they react to the light. If they don't react to the light, they'd be described as "pupils fixed and dilated."
The pupil decreases in size to lessen the amount of light allowed in, so as to prevent damage.
The eyes constrict, not dilate, when a light is shone into the eye...this is a multi-arc process going through the parasympathetic nervous system and the EW nucleus.
usually the state of the pupil is determined by the
Your mother.
The Luminescent crystal shone in the bright light.
If you shone monochromatic light on a diffraction grating it would alternate bright and dark bands. Only white light white light shone through a diffraction grating would produce a band of colors.
This protective reflex prevents excessively bright light from damaging the delicate photoreceptors.
an egg candler is when a bright light is shone on the eggs to check the fertility rate of the egg (infertile or fertile)
shone is the past tense of shine.The light shines in my window.The light shone on my bed.
The sun shone so bright people got burned.
The past tense of "shine" is "shone" or "shined," depending on the context. "Shone" is typically used for the sense of emitting bright light, whereas "shined" is more commonly used for the act of polishing or cleaning something to make it shine.