Apparatus for ophthalmic treatment using a light beam

An apparatus for optical treatment using a light beam comprising an apparatus body and a light relaying device which introduces a treatment light emitted from said apparatus body into a delivery unit by being connected with the apparatus body through an optical fiber cable, wherein said apparatus body comprises:

• a treatment laser beam oscillator for emitting treatment light;
• a first transmitting laser beam oscillator for emitting communication light to said light relaying device;
• a first receiving device for receiving the communication light to be sent from said light relaying device through said optical fiber cable;
• a first operation means for operating emitting power of the treatment light emitted from said treatment laser beam oscillator and that of the communication light emitted from the first transmitting laser beam oscillator;
• and a first control means which controls the emitting power of the treatment light emitted from said treatment laser beam oscillator and the communication light emitted from the first transmitting laser beam oscillator, and generates a received communication signal from the communication light received by said first receiving device;
• and
• said light relaying device comprising:
• a second receiving device for receiving the communication light emitted from the first transmitting laser beam oscillator in said apparatus body;
• a second transmitting laser beam oscillator for emitting the communication light into said apparatus body;
• a second operation means for operating a second transmitting laser beam oscillator to generate communication light;
• and a second control means which controls the communication light emitted from the second transmitting laser beam oscillator and generates another received communication signal from the communication light received by said second receiving device.

An apparatus for optical treatment using a light beam, which includes an apparatus body having a first control operation means for providing an optical treatment light and an optical fiber cable for transmitting the optical treatment light from said apparatus body into a delivery unit, comprising:

• a light relaying device connected with both of said apparatus body and said delivery unit through the optical fiber cable;
• second control operation means provided in said light relaying device;
• respective optical communication means for transmitting and receiving communication light signals, said optical communication transmitting means and said optical communication receiving means being arranged in the light relaying device and said apparatus body respectively;
• and
• an optical system for introducing the communication light signals from said optical communication means into said optical fiber cable.