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When the lens loses its elasticity and can no longer bring near objects in focus what is the condition?
Presbyopia
If your eye looks like it has been flattened a bit the image from the lens will focus in front of the retina but the problem can be corrected with a concave lens What problem is this?
Faraway objects are blurry
Focal distance of a concave lens is always what?
To my understanding of psychology, the lens convexity in distant vision is increased in order to better take in the visual stimuli. To focus visual stimuli on the fovea (focus point) of the retina, the lens undergoes a process of adjusting called "accommodation," and it becomes more convex to ensure that distant objects reach the retina. A failure to properly accommodate leads to nearsightedness (faraway objects falling short of retina) or farsightedness (nearby objects falling past retina)
Can a converging lens have more than one focus?
can a converging lens have more than one focus
What type of lens can focus the suns rays?
Bi-Convex lens can be used to focus the Sun's rays
A clouded lens is called?
Answer #1:presbyopia======================Answer #2:The clouding of the lens of the eye, either with age or in response to certainexternal influences, is called 'cataract'."Presbyopia" is the progressive loss of the ability to focus on nearby objects.
To adjust a lens so that objects can be seen clearly?
focus
Objects are brought into focus on the retina by changes in the curve and thickness of the?
Objects are brought into focus on the retina by changes in the curve and thickness of the lens.
What does the elasticity of the eye's lens allow for?
This elasticity allows the lens to focus on both near and far objects.
Would a convex lens make nearby objects appear larger?
Yes it would
What type of lens is used for making nearby objects look bigger?
convex shaped lenses are used to magnify objects
What is the medical term for normal adjustment of the lens to bring an object into focus?
The medical term for normal adjustment of the lens to bring an object into focus is "accommodation." This process involves the changing of the lens shape to focus on objects at different distances.
What part of your eye uses small muscles to change its shape so that you can focus on near or distant objects?
The lens
When the lens loses its elasticity and can no longer bring near objects in focus what is the condition?
Presbyopia
What type of lens is the lens of your eye?
The lens in the human eye is a convex lens, but it is flexible and when it is acted on by the ciliary muscle around it, the lens can be "flattened" to change the focus, or, when the muscle is relaxed, the lens can assume a more spherical shape. This is at the heart of the ability of the eye to focus on objects nearer or farther away.
Why is the lens in your eye more like jelly than glass?
It's because to change focus, the eye distorts the lens and so the lens has to be flexible. In camera lenses, the lens elements are moved back and forth to focus - it's difficult to see how that kind of mechanism could evolve; but the lens distortion system is similar(ish) to the way muscles work.
Why are small objects not lost from your vision?
The Lens are very flexible, thus they can focus on light from nearby & distant objects. Also, photoreceptors receive light and convert it into electrical signals. Cones/Rods then detect small changes from far away.
