Laser treatment apparatus

• US 6,235,014 B1
• Filed: 03/30/1999
• Issued: 05/22/2001
• Est. Priority Date: 03/31/1998
• Status: Expired due to Fees

• Current Assignee: Nidek Company Limited
• Original Assignee: Nidek Company Limited
• Inventors: Kawai, Naho, Abe, Hitoshi, Naito, Yasuyuki, Kojima, Kazunobu
• Primary Examiner(s): Dvorak, Linda C. M.
• Assistant Examiner(s): FARAH, AHMED M
• Application Number:
  US09/281,273
• Time in Patent Office: 784 Days
• Field of Search: 606/4-6, 606/10-12, 606/17, 345/20, 345/84, 345/112, 345/147, 345/339, 345/11, 345/12
• US Class Current: 606/4
• CPC Class Codes: A61F 2009/00855 Calibration of the laser system
• CPC Class Codes: A61F 2009/00863 Retina
• CPC Class Codes: A61F 2009/00891 Glaucoma
• CPC Class Codes: A61F 9/008 using laser
• CPC Class Codes: A61F 9/00821 for coagulation
• CPC Class Codes: A61F 9/009 Auxiliary devices making contact with the eyeball and coupling in laser light, e.g. goniolenses apparatus for eye examination A61B3/0008

Abstract

A laser treatment apparatus for performing treatments on a patient'"'"'s eye by irradiating a laser beam is provided with an observation optical system including eyepieces through which a patient'"'"'s eye is observed, wherein the brightness of a display part for displaying setting information such as laser irradiation conditions and others is controlled based on the light reception quantity detected by a light quantity detecting device.

Claims

1. A laser treatment apparatus for performing treatment on a patient'"'"'s eye by irradiating the eye with a laser beam, the apparatus comprising:

an observation optical system including eyepieces through which the patient'"'"'s eye is observed by an operator;

a setting device for setting irradiation conditions of the laser beam;

a display part disposed proximate the eyepieces for displaying information of the irradiation conditions set by the setting device;

a light detector disposed proximate at least one of the display part and the eyepieces for detecting a light quantity;

and

an adjustor for adjusting brightness of the display part based on the light quantity detected by the light detector.

2. The laser treatment apparatus according to claim 1, wherein the adjuster linearly adjusts the brightness of the display part based on the light quantity detected by the light detector.

3. The laser treatment apparatus according to claim 1, wherein the adjuster adjusts the brightness of the display part in steps of light quantity after dividing the light quantity detected by the light detector into multiple steps.

4. The laser apparatus according to claim 1, wherein the adjuster includes a memory for storing a program for adjusting the brightness of the display part based on the light quantity detected by the light detector.

5. A laser treatment apparatus for performing treatment on a patient'"'"'s eye by irradiating the eye with a laser beam, the apparatus comprising:

an observation optical system including eyepieces through which the patient'"'"'s eye is observed by an operator;

a setting device for setting irradiation conditions of the laser beam;

a display part for displaying information of the irradiation conditions set by the setting device;

a light detector for detecting a light quantity; and

an adjustor for adjusting brightness of the display part based on the light quantity detected by the light detector;

wherein the display part displays the information of the irradiation conditions within an observation visual field viewed through the eyepieces, and the light detector detects a light quantity of a reflected light reflected by a portion of the patient'"'"'s eye observed through the eyepieces.

6. The laser treatment apparatus according to claim 5, wherein the adjuster linearly adjusts the brightness of the display part based on the light quantity detected by the light detector.

7. The laser treatment apparatus according to claim 5, wherein the adjuster adjusts the brightness of the display part in steps of light quantity after dividing the light quantity detected by the light detector into multiple steps.

8. The laser apparatus according to claim 5, wherein the adjuster includes a memory for storing a program for adjusting the brightness of the display part based on the light quantity detected by the light detector.

9. A laser treatment apparatus for performing treatment on a patient'"'"'s eye by irradiating the eye with a laser beam, the apparatus comprising:

a laser emitter for emitting the laser beam having a wavelength selected from a plurality of wavelengths;

an observation optical system including eyepieces through which the patient'"'"'s eye is observed by an operator;

a setting device for setting irradiation conditions of the laser beam;

a display part for displaying information of the irradiation conditions set by the setting device;

a light detector for detecting a light quantity; and

an adjustor for adjusting brightness of the display part based on the light quantity detected by the light detector;

wherein the setting device includes a selector for selecting the wavelength of the laser beam to irradiate an affected part of the patient'"'"'s eye; and

the display part displays information of the wavelength of the laser beam selected by the selector within an observation visual field viewed through the eyepieces.

10. The laser treatment apparatus according to claim 9, wherein the wavelength information of the laser beam displayed by the display part includes predetermined different color information.

11. The laser treatment apparatus according to claim 9, further comprising:

an aiming light emitter for emitting an aiming light beam used for setting the treatment laser beam at the affected part;

wherein a form of the wavelength information of the laser beam is made into a different form from a form of the aiming light beam to be observed through the observation optical system.