※All prices include the 10% Japanese Consumption Tax
※the prices listed are purely prices for treatments, additional costs for medication, anesthesia etc. are not included.
※Initial consultation is free, revisits cost \1,100 per visit , medication costs range from \2,200～\6,600 or more, depending on your condition.

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■What is a laser and laser medicine ?
Laser is an acronym for Light Amplification by Stimulated Emission of Radiation. The word laser is used to denote both the device which emits laser light and the light itself. Laser light is an artificial light with the following characteristics.

1. high degree of coherence,
2. low level of divergence
3. single wave length

In medicine such characteristics of laser light is used. High degree of coherence and low level of divergence mean that the laser light can be focused to a very small point, and allow delivery of large amount of energy to a very limited area. Single wavelength means that the laser light will be absorbed solely by the intended chromophore (targeted color).
Laser surgery and medicine are fields of medicine where lasers are emitted toward targets, far more specific than conventional electrocoagulation. Laser surgery allows destruction of lesions with minimal collateral damage of surrounding tissue.

■How does laser light treat dermal lesions?
In actuality, there are not many types of chromophores in human tissue. Water (H2O), hemoglobin in the red blood cells and melanin are the only natural chromophores targeted in laser surgery. There are specific lasers that emit laser light that is absorbed by each chromophore, eg. CO2 laser for H2O , Dye lasers for hemoglobin, Ruby and Alexandrite lasers for melanin, etc. When the laser beam is incident to the skin surface, the chromophores will absorb the energy changing it to radiant heat. The degree of photo-thermal damage due to radiant heat will depend on the power and energy density of the laser. The strongest of such reactions would be carbonization, while vaporization,protein coagulation, protein denaturation follow in decreasing order. Since the laser energy is absorbed only by the intended chromophore, the damage to surrounding tissue and cells are minimal. This process is called “selective photo-thermolysis”. However, radiant heat energy released from the chromophores will cause convectedheating of surrounding tissue and cells which may cause thermal damage. In order to avoid this, the lasers are pulsed or Q-switched. This is based on the theory called “thermal-relaxation time”. What it basically means is that if a chromophore is heated, destroyed and cooled so quickly, there would be no time and energy for heat convection to cause damage to the surroundings. The higher the peak power is the shorter the time of laser emission is required to achieve minimal damage. The time frame of various clinically used lasers range from the milli-second (0.001 second) to pico-second (10-12 second), depending on the laser device.
Therefore laser treatment is achieved by the complete thermal destruction of the lesion with minimum damage to the surrounding tissue. Wound healing is practically scar-less since most lesions are limited to the epidermis or to the upper dermis. The advances in laser technology and medicine has made possible the treatment of many skin lesions which were otherwise ignored or had associated risks of scarring with conventional treatment methods.

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