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when its dark and when you look at something bright the puple turns small

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14y ago

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What is the condition when the lens of the eye thickens and becomes less elastic?

Presbyopia


What thickens or thins to focus incoming light?

The lens of the eye thickens or thins to focus incoming light. When focusing on nearby objects, the ciliary muscles contract, causing the lens to become thicker and more curved, which increases its refractive power. Conversely, when focusing on distant objects, the muscles relax, allowing the lens to thin and flatten, reducing its curvature. This adjustment enables clear vision at varying distances.


What controls the thickness of the lens to help focus light on the retina?

The ciliary muscles control the thickness of the lens in the eye. When the ciliary muscles contract, the lens thickens to focus on near objects, and when they relax, the lens thins to focus on distant objects.


What is the opposite of a fish eye lens?

The opposite of a fish eye lens is a telephoto lens.


What part of the camera correspond to the lens of the eye?

focusing lens of the eye....


What is the term that describes an eye in which the natural lens has been replaced with an intraocular lens?

The term for an eye in which the natural lens has been replaced with an intraocular lens is "pseudophakic eye."


What is a crystalline lens?

A crystalline lens is the lens in the human eye.


Is the human eye has a double convex or a plano convex lens?

The human eye has a double convex lens in the cornea (outermost layer) and a bi-convex lens in the crystalline lens inside the eye.


What type of lens is your eye?

convex lens


What structure changes its shape to focus light at the back of the eye?

The lens of the eye also called the crystalline lens.


Is there a bone in your lens?

No. I assume you are talking about your lens in your eye.


What is the name given to the lens in a human eye?

It is lens. The lens consists of the lens capsule, the lens epithelium, and the lens fibres.