The way the Laser Works in Laser Eye Surgery

What is a Red Lasers?

LASER means Light Amplification by Stimulated Emission of Radiation. The first word is a good place to begin. A Red Lasers is really a light. Not a light like the one in your family room, but a unique type of light. It has unique qualities.

Monochromaticity - A laser only has one wavelength or color. A regular lamp includes a range of wavelengths.

Directionality - A laser has a narrow beam which doesn't diverge. Compare a laser pointer having a regular flashlight.

Intensity - A laser is definitely a powerful light. An easy laser can produce light the industry hundred times more intense than sunlight.

These properties result in the laser useful in flashing lights, war games, and incidentally, healthcare. Within medicine, lasers were first adapted for eye surgery.

The Excimer Laser

Lasers are differentiated from one another by the wavelength of their light beam. A laser generated from krypton gas produces light having a wavelength of 647 nanometers (nm). This wavelength falls within the visible spectrum of radio waves and is viewed as red. An argon laser which is often used in retinal surgery includes a wavelength of 514 nm and is green. A holmium:YAG laser having a wavelength of two.13 micrometers is advantageous within the treatment of hyperopia.

The excimer laser uses a mixture of argon and fluoride gases to create radiation in the ultraviolet range (193nm) that is invisible towards the human eye alone. This laser light has the ability to break molecular bonds inside a process called photoablation.

In 1983, it was first remarked that this laser might be helpful for corneal surgery. Why? As this laser was different. Unlike other lasers, the excimer had a chance to remove corneal tissue with a high degree of precision, and essential, without causing thermal damage to the remaining tissue. Sculpting from the cornea applied for the arena of possibility.

It is difficult, yet desirable, to comprehend their education of precision exhibited through the excimer laser. A millimeter is a thousandth of a meter or four hundredths inch. A micron, or micrometer, is a thousandth of the millimeter. That is, one millionth of the meter. For the sake of comparison, a potato chip is about 500 microns thick, an individual hair is about 50 microns thick along with a single red blood cell is seven microns in diameter. The excimer laser has the ability to sculpt the cornea inside a fraction of a micron.

Advocates of laser eye surgery point out that the steadiest hands on the planet cannot even approach that much cla of surgical precision.

There are other kinds of lasers on the horizon which act in a similar fashion towards the excimer. The sunshine from all of these solid state lasers is produced from a crystal, whereas the excimer beam is created from a gas. Technically, solid state lasers are not excimer lasers, but that is a whole new area to understand more about.

Before you have laser eye treatment, are you certain you grasp the risks and implications from the procedures, and also have you selected the right type of corrective eye surgery for the specific condition? Get the contract details the ads don't tell you here.
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