laser eye surgery wavelength

Medical lasers are accurate and helpful, but only if they are being used correctly

Medical lasers have changed a lot of things about medicine and surgery. Laser stands for Light Amplification by Stimulated Emission of Radiation. What this means is that lasers are a concentrated from of one type of light, or one wavelength. This allows for greater power and strength and can perform different functions. People who take physics will learn about lasers in their classes. The science and physics behind it can be quite fascinating.

People learning about medical lasers are often fascinated to learn about what they can do. Medical lasers that are used during optical surgery, for example, can perform very specialized functions. Vision correction surgery is often done with lasers. Medical lasers are often preferred over surgery performed strictly by human beings because they can be more accurate.

If you are having a procedure done, it may be worth your while to find out if medical lasers will be involved. If this is the case, do a little research as to the nature of the surgery and how lasers are involved with it. This isn’t just to satisfy your own curiosity. This is also to help understand if you are getting the right surgery done or if you are hiring the correct surgeon.

Medical lasers are accurate and helpful, but only if they are being used correctly. If you are getting surgery done that involves medical lasers, research the surgeon to make sure they have a track record of success. Yes, they can be more accurate than surgery performed with instruments, but that is only if the doctor who is operating the laser is accurate. If the doctor is not accurate, that means that there could be some problems.

All lasers have the same basic science and physics that help dictate how it works. Lasers also have different functions, including medical lasers. A popular way for lasers to be used in medical procedures is for use in the eye for surgery such as vision correction. This is because they are precise and accurate. The eye is very delicate, and a laser can be used with much success to help repair vision and fix other problems. If you think you need to get a surgery done, make sure you understand how the procedure works.

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EASY physics problem. Index of refraction, I simply cannot think straight I suppose.?

1. The problem statement, all variables and given/known data

An laser is used of wavelength 544 x 10^-7 m (in air) for eye surgery. The index of refraction of the fluid in an eye is n = 1.43. Calculate the frequency of the laser waves in the eye.

n = 1.43
L1=544 x 10^-7
L2=
f =

2. Relevant equations

n=L1/L2

L1 being the wavelength in “air”
L2 being the wavelength in the eye

f=v/L

L=v/f

3. The attempt at a solution

so, given n and L1 its simple to find L2, so I now know the wavelength in the eye. Yet I can’t seem to derive the frequency.

so:

n=L1/L2

1.43= (5.44 x 10^-7) / (v/f)

the frequency remains constant for both wavelengths.

so simply I would have to find the velocity of L1 or L2 that would be the frequency “within the eye”

v1/L1=v2/L2

the velocity is not the same so I now have 2 unknown variables.

I KNOW this isn’t hard, my minds just shot right now

Well LASER is light and you know velocity of light to be 3*10^8m/s
So frequency=v/wavelength=3*10^8/5.47*10^-5
=5.484*10^12 HZ

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