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Get Full Access to College Physics - 1 Edition - Chapter 24 - Problem 22cq
Get Full Access to College Physics - 1 Edition - Chapter 24 - Problem 22cq

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# Solved: Laser vision correction often uses an excimer

ISBN: 9781938168000 42

## Solution for problem 22CQ Chapter 24

College Physics | 1st Edition

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Problem 22CQ

Problem 22CQ

Laser vision correction often uses an excimer laser that produces 193-nm electromagnetic radiation. This wavelength is extremely strongly absorbed by the cornea and ablates it in a manner that reshapes the cornea to correct vision defects. Explain how the strong absorption helps concentrate the energy in a thin layer and thus give greater accuracy in shaping the cornea. Also explain how this strong absorption limits damage to the lens and retina of the eye.

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Step 1 of 3

Solution 22CQ

A small number of photons of a particular wavelength are projected towards lens of the eye. These photons are strongly absorbed before getting absorbed and gets concentrated to a thin layer.

This raises the temperature of cornea considerably. High temperature evaporates some part of cornea and creates a gap. This gap is filled by remaining cornea tissues and cornea is reshaped.

The selective and strong absorption ensures that the laser is absorbed only by cornea tissue leaving lens and retina undamaged.

Step 2 of 3

Step 3 of 3

##### ISBN: 9781938168000

The answer to “Laser vision correction often uses an excimer laser that produces 193-nm electromagnetic radiation. This wavelength is extremely strongly absorbed by the cornea and ablates it in a manner that reshapes the cornea to correct vision defects. Explain how the strong absorption helps concentrate the energy in a thin layer and thus give greater accuracy in shaping the cornea. Also explain how this strong absorption limits damage to the lens and retina of the eye.” is broken down into a number of easy to follow steps, and 74 words. College Physics was written by and is associated to the ISBN: 9781938168000. The full step-by-step solution to problem: 22CQ from chapter: 24 was answered by , our top Physics solution expert on 07/07/17, 04:39PM. This full solution covers the following key subjects: cornea, laser, strong, Vision, explain. This expansive textbook survival guide covers 34 chapters, and 3125 solutions. This textbook survival guide was created for the textbook: College Physics , edition: 1. Since the solution to 22CQ from 24 chapter was answered, more than 268 students have viewed the full step-by-step answer.

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