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How does lasik eye surgery aid the human eye to see objects?
It changes the shape of the cornea, which changes the focal length. Both the cornea and the lens act together (like a compound camera lens) to focus the image on the retina.
What part of the eye does a water drop act like?
The cornea or lens of the eye.
What are the parts of the that eye that similar to the camera?
In a camera the following parts could be considered equivalent to the parts of a human eye:Optical diaphragm = IrisAperture in optical diaphragm = PupilOuter lens element / lens glass = CorneaInner lens element = Eye lensCCD Sensor (in a digital camera) = RetinaThis is a huge simplification of a very complex topic. Please see the related links for more information.
Does the anterior part of cornea act as contact lens?
No, the anterior part of the cornea does not function as a contact lens. The cornea is the clear, dome-shaped front part of the eye that helps to focus light onto the retina. Contact lenses are external devices that are placed directly onto the cornea to correct vision or change its appearance.
What type of lens does the pinohole in a pinhole camera act as?
Fffd
An air bubble in water will act like concave or convex lens?
YES. It will act as a convex lens.
What does an eyepiece lens act like?
It acts as a focal lens on a telescope or microscope, to magnify the image created by the primary or objective lens.
What is the function of the cornea?
The cornea is a tough, clear covering that keeps objects from entering the pupil.The Cornea is the front part of the eye that covers the iris and the pupil.help keep your eye cleanKeeps dirt , germs and grit out of your eye it is like the protective cover for your eye.It refracts light together with the lens.Because the cornea is as smooth and clear as glass but is strong and durable, it helps the eye in two ways1. It helps to shield the rest of the eye from germs, dust, and other harmful matter. The cornea shares this protective task with the eyelids, the eyesocket, tears, and the sclera, or white part of the eye2. The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65-75 percent of the eye's total focusing power.When light strikes the cornea, it bend-or retracts-the incoming light onto the lens. The lens further refocuses that light into the retina, a layer of light sensing cells lining the back of the eye that starts the translation of light into vision. For you to see clearly, light rays must be focused by the cornea and lens to fall precisely on the retina. The retina converts the light rays into impulses that are sent through the optic nerve to the brain, which interprets them as imagesThe cornea allows light to enter the eye.Because the cornea is as smooth and clear as glass but is strong and durable, it helps the eye in two ways 1. It helps to shield the rest of the eye from germs, dust, and other harmful matter. The cornea shares this protective task with the eyelids, the eyesocket, tears, and the sclera, or white part of the eye 2. The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65-75 percent of the eye's total focusing power. When light strikes the cornea, it bend-or retracts-the incoming light onto the lens. The lens further refocuses that light into the retina, a layer of light sensing cells lining the back of the eye that starts the translation of light into vision. For you to see clearly, light rays must be focused by the cornea and lens to fall precisely on the retina. The retina converts the light rays into impulses that are sent through the optic nerve to the brain, which interprets them as imagesThe cornea focuses the light from the object you are looking at into the pupil, where the image gets processed on the retina.If I'm not mistaken, the cornea is the colorful ring surrounding the iris? I was told the cornea are the muscles that control dilation of the iris, controlling the amount of light that is allowed to enter the eye.The reason it is colored is due to genetics. Specific amino acids produce different colors (including people like myself who's color changes, which is affected by additional acids in the food we eat).
How does sight takes place?
The individual components of the eye work in a manner similar to a camera. Each part plays a vital role in providing clear vision. So think of the eye as a camera with the cornea, behaving much like a lens cover. As the eye's main focusing element, the cornea takes widely diverging rays of light and bends them through the pupil, the dark, round opening in the center of the colored iris. The iris and pupil act like the aperture of a camera. Next in line is the lens which acts like the lens in a camera, helping to focus light to the back of the eye. Note that the lens is the part which becomes cloudy and is removed during cataract surgery to be replaced by an artificial implant nowadays.
Does a water bubble act as a lens?
it depends upon the level of water which produces the bubble. when there is less water,the bubble acts like a lens
When does a concave lens act as convex lens?
A convex lens acts as concave lens when it is kept in a medium whose optical density is higher than the lens itself. And the vice-verse is also true .i.e, a concave lens can act as convex lens too .
When does convex lens act as a concave lens?
A convex lens acts as concave lens when it is kept in a medium whose optical density is higher than the lens itself. And the vice-verse is also true .i.e, a concave lens can act as convex lens too .
