Method and apparatus for patterned plasma-mediated laser trephination of the lens capsule and three dimensional phaco-segmentation

摘要

A laser surgical system for making incisions in ocular tissues during cataract surgery includes a laser system, an imaging device and a control system. The laser system includes a scanning assembly and a laser to generate a laser beam that incises ocular tissue. The imaging device acquires image data of a crystalline lens and constructs an image from the image data. The control system operates the imaging device to generate image data for the patient's crystalline lens, processes the image data to determine an anterior capsule incision scanning pattern for scanning a focal zone of the laser beam to perform an anterior capsule incision, and operates the laser and the scanning assembly to scan the focal zone of the laser beam in the anterior capsule incision scanning pattern, wherein the focal zone is guided by the control system based on the image data.

主权项

1. A laser surgical system for making incisions in ocular tissues during a cataract surgical procedure, the system comprising:
a laser system comprising a scanning assembly, a laser operable to generate a laser beam configured to incise ocular tissue; an imaging device configured to acquire image data from locations distributed throughout a volume of a crystalline lens of the patient and construct one or more images of the patient's eye tissues from the image data, wherein the one or more images comprise an image of at least a portion of the crystalline lens; and a control system operably coupled to the laser system and configured to:
operate the imaging device to generate image data for the patient's crystalline lens;process the image data to determine an anterior capsule incision scanning pattern for scanning a focal zone of the laser beam for performing an anterior capsule incision, wherein the anterior capsule incision is not in the form of a circle; andoperate the laser and the scanning assembly to scan the focal zone of the laser beam in the anterior capsule incision scanning pattern to perform the anterior capsule incision, wherein positioning of the focal zone is guided by the control system based on the image data.