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ur professor has a eyeglass prescription of 1.5 D hat type of lens does she need...
will thumbs up pls write neatly A certain child's near point is 15.0 cm; her far...
will thumbs up pls write neatly
A certain child's near point is 15.0 cm; her far point (with eyes relaxed) is 129 cm. Each eye lens is 2.00 cm from the retina. (a) Between what limits, measured in diopters, does the power of this lens-cornea combination vary? lower bound diopters upper bound diopters (6) Calculate the power of the eyeglass lens the child should use for relaxed distance vision. diopters Is the lens converging or diverging? O converging diverging
A person’s vision is myopic; without correction, the far point of her eye is a modest 40 cm. This...
A person’s vision is myopic; without correction, the far point of her eye is a modest 40 cm. This does come with a benefit of having a near point of 8.0 cm. If she wears a lens that correct her distance vision, what power lens is required? With this lens in place, what is her near point?
an older person needs a pair of reading glasses.Her near point is at 48 cm from...
an older person needs a pair of reading glasses.Her near point is at 48 cm from her eyes and reading glasses are 2 cm from her eyes. The glasses should allow her to read 25 cm away. What are the object and image distances? what is the magnification of these lenses? What is the focal length of the pair of glasses? What is the optical power of the lens pair? What type of lenses (converging, diverging) does she need?
Velma is extremely nearsighted, and has difficulty seeing anything which is further away than 1.5 meters...
Velma is extremely nearsighted, and has difficulty seeing anything which is further away than 1.5 meters from her face if she isn't wearing her glasses. Dexter also wears glasses, which correct his farsightedness; he can only see objects clearly when they are more than 50 cm from his eyes. Assuming that each of them wears glasses which are 1.5 cm from their eyes, and that a person with normal vision has a near point of 25 cm and a far...
One of the inevitable consequences of aging is a decrease in the flexibility of the lens....
One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the myopic, or nearsighted, person it is possible that far vision will be limited by a subpar far point and near vision will be hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the...
The print in many books averages 3.50 mm in height
1. The print in many books averages 3.50 mm in height. How high is the image of the print on the retina when the book is held 30.0 cm from the eye? 2. A very myopic person has a far point of 20.0 cm. What power contact lens (when on the eye) will correct the distant vision? Assume the eyeglasses held 1.50 cm from the eyes. 3. A farsighted person has a near point of 50 cm rather than the normal 25...
A farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power...
A farsighted woman breaks her current eyeglasses and is using an old pair whose refractive power is +5/3 diopters. Since these eyeglasses do not completely correct her vision, she must hold a newspaper 42.00 cm from her eyes in order to read it. She wears the eyeglasses 2.00 cm from her eyes. a.What is the focal length of the lenses? b.Are the lenses converging or diverging? Why? c.How far is her near point from her eyes? d.In order to be...
NEED HELP ON #2 A nearsighted pharmacy student has eyes who have a relaxed refractive power...
NEED HELP ON #2 A nearsighted pharmacy student has eyes who have a relaxed refractive power of 49 diopters and her retina is 2.3 cm from her lens. 1). If she is nearsighted, what is her far point? If she is far-sighted, what is her near-point? .1804 m 2) Let's say she wants to be able to focus clearly on objects that are from 150 m to 6.5 cm away. What is the power of the corrective lens she should...
This assignment is to be turned in on Catcourses by 11:59pm December 13, 2019. Late homework will not be accepted. You...
This assignment is to be turned in on Catcourses by 11:59pm December 13, 2019. Late homework will not be accepted. You are encouraged to work with classmates, but the work you turn in must be your own. 1. Vision. Suppose your right eye can only see clearly beyond a distance of 32 cm. An optometrist orders a pair of glasses that will sit 2 cm from your eye. a. Your right eye is (circle one): nearsighted farsighted b. What is...
People commonly use contact lenses to correct their vision. A patient has a near point of...
People commonly use contact lenses to correct their vision. A patient has a near point of 150 cm and, to correct this, wears contact lenses with a focal length of 50 cm Part A What is the refractive power of her contact lenses? Part B How close can she hold a newspaper and still read it while wearing her contact lenses? Part C The indices of refraction for her contact lens, cornea, and the fluid behind her cornea are 1.6,...
will thumbs up pls write neatly
A certain child's near point is 15.0 cm; her far point (with eyes relaxed) is 129 cm. Each eye lens is 2.00 cm from the retina. (a) Between what limits, measured in diopters, does the power of this lens-cornea combination vary? lower bound diopters upper bound diopters (6) Calculate the power of the eyeglass lens the child should use for relaxed distance vision. diopters Is the lens converging or diverging? O converging diverging
One of the inevitable consequences of aging is a decrease in the flexibility of the lens. This leads to the farsighted condition called presbyopia (elder eye). Almost every aging human will experience it to some extent. However, for the myopic, or nearsighted, person it is possible that far vision will be limited by a subpar far point and near vision will be hampered by an expanding near point. One solution is to wear bifocal lenses that are diverging in the...
This assignment is to be turned in on Catcourses by 11:59pm December 13, 2019. Late homework will not be accepted. You are encouraged to work with classmates, but the work you turn in must be your own. 1. Vision. Suppose your right eye can only see clearly beyond a distance of 32 cm. An optometrist orders a pair of glasses that will sit 2 cm from your eye. a. Your right eye is (circle one): nearsighted farsighted b. What is...
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