A nearsighted person receives a contact lens prescription that says -4.25 D. What is the person’s...
A nearsighted person receives a contact lens prescription that says -4.25 D. What is the person’s far point?
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A nearsighted person receives a contact lens prescription that
says -4.25 D. What is the person’s...
3. What is the focal length of the corrective contact lens needed by a nearsighted person...
3. What is the focal length of the corrective contact lens needed by a nearsighted person whose far point is 60 cm? a)-60 cm b)-30 cm c) +30 cm d) +60 cm e) +130 cm 4 An astronaut in trou
The contact lens prescription for a mildly farsighted person is 0.75 D
The contact lens prescription for a mildly farsighted person is 0.75 D, and the person has a near point of 29.0 cm. Randomized Variables Pe = 0.75D What is the power in D of the tear layer between the cornea and the lens if the correction is ideal, taking the tear layer into account? Assume that a normal human has a near point of 25.0 cm.
What is the power of a contact lens for a nearsighted whose far point is 1.50m?...
What is the power of a contact lens for a nearsighted whose far point is 1.50m? Answer: D
A nearsighted person wears contact lenses of refractive power -6.0 D. What is her far point?...
A nearsighted person wears contact lenses of refractive power -6.0 D. What is her far point? 17 cm 6.0 cm -17 cm -4.0 cm -6.0 cm
A nearsighted person has a far point of 50cm. What prescription(s) should the optometrist write in...
A nearsighted person has a far point of 50cm. What prescription(s) should the optometrist write in order to correct this person's vision?
A mother sees that her child's contact lens prescription is +1.00 D. What is the child's...
A mother sees that her child's contact lens prescription is +1.00 D. What is the child's near point, assuming the contact lens is designed to enable the child to see objects 25.0 cm away clearly?
A nearsighted person has a far point of 21.5cm and is prescribed contact lenses to correct her vision
A nearsighted person has a far point of 21.5cm and is prescribed contact lenses to correct her vision. What lens strength (a.k.a., lens power), in Diopters, should be prescribed? Give your answer using the usual convention of positive values for converging lenses and negative values for diverging lenses. Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 146, 5.23e-8
(A) What power contact lens in D is needed to correct the vision of a person...
(A) What power contact lens in D is needed to correct the vision of a person who has a near point of 64.0 cm and allow him to see objects 25.0 cm away? __________ D (B) If this person has a normal 8.00% ability to accommodate (increase) the power of his eyes, what is the maximum distance of objects he can see clearly in m with his contact lenses and with totally relaxed eyes? (Assume a lens-to-retina distance of 2.00...
4)Aseverely nearsighted person needs corective lenses. In one eye, this person can focus on objects over...
4)Aseverely nearsighted person needs corective lenses. In one eye, this person can focus on objects over a range from as close as 15.8cm to as far away as 69.1cm. A) What strength (in diopters) contact lens would correct the vision in this eye? B) If instead of contact lenses, this person were to get glasses, the lenses of the glasses will sit a distance of 1.9 cm from the person's eye. What strength lens (in diopters) would be needed for...
A particular nearsighted person is unable to see objects clearly when they are beyond 3.0 cm...
A particular nearsighted person is unable to see objects clearly when they are beyond 3.0 cm away (the far point of the particular eye). What should the focal length be in a lens prescribed to correct the problem?
3. What is the focal length of the corrective contact lens needed by a nearsighted person whose far point is 60 cm? a)-60 cm b)-30 cm c) +30 cm d) +60 cm e) +130 cm 4 An astronaut in trou
What is the power of a contact lens for a nearsighted whose far point is 1.50m? Answer: D
4)Aseverely nearsighted person needs corective lenses. In one eye, this person can focus on objects over a range from as close as 15.8cm to as far away as 69.1cm. A) What strength (in diopters) contact lens would correct the vision in this eye? B) If instead of contact lenses, this person were to get glasses, the lenses of the glasses will sit a distance of 1.9 cm from the person's eye. What strength lens (in diopters) would be needed for...
A particular nearsighted person is unable to see objects clearly when they are beyond 3.0 cm away (the far point of the particular eye). What should the focal length be in a lens prescribed to correct the problem?
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