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Predict/Explain Intracorneal Ring An intracorneal ring isa small plastic device implanted in a person's cornea to change itscurvature. By changing the shape of the cornea, the intracorneal ring can correct a person's vision. (a) If a person is nearsighted,should the ring increase or decrease the cornea's curvature?(b) Choose the best explanation from among the following:I. The intracorneal ring should increase the curvature of thecornea so that it bends light more. This will allow it to focuson light coming from far away.II. The intracorneal ring should decrease the curvature of thecornea so it's flatter and bends light less. This will allow parallel rays from far away to be focused properly on the retina.

a) decreaseb) II

Physics 103

Chapter 27

Optical lnstruments

Wave Optics

Rutgers, The State University of New Jersey

Simon Fraser University

University of Sheffield

University of Winnipeg

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Okay, so imagine this problem. We have the corn, the shape of the cornea changing and inter cornea rink can correct a person's vision. Uh, we know that we need to consider the correction required for a near sightedness type of person. So you just need to remember to answer this question that ah, near sighted person converge too much of the light. So in order to correct the vision of a near sighted person, we need a diverging type of lands because the diverging type of lens diverged, delight, race and correct the image off the object that is being produced. So you the answer to the first I thin is the inter cornering should decrease the need to put again should decrease, increase the corneas curvature. Because if we decrease the core of the corneas curvature, we're not bending that much of the light, and then we can see properly. Based on that, we can say that the best explanation is the explanation two, because this position to say that the inter cornering should decrease the curvature of the cornea for this flatter and bends light less Israel a battle Oh, race from far away to be focused properly on director, and that's exactly what we should think based on the correction of the near sighted person, So that's all things.

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