CONFOCAL LASER EYE SURGERY SYSTEM

摘要

A laser surgery system includes a light source, an eye interface device, a scanning assembly, a confocal detection assembly and preferably a confocal bypass assembly. The light source generates an electromagnetic beam. The scanning assembly scans a focal point of the electromagnetic beam to different locations within the eye. An optical path propagates the electromagnetic beam from a light source to the focal point, and also propagates a portion of the electromagnetic beam reflected from the focal point location back along at least a portion of the optical path. The optical path includes an optical element associated with a confocal detection assembly that diverts a portion of the reflected electromagnetic radiation to a sensor. The sensor generates an intensity signal indicative of intensity the electromagnetic beam reflected from the focal point location. The confocal bypass assembly reversibly diverts the electromagnetic beam along a diversion optical path around the optical element.

主权项

1. A method of imaging an eye, the method comprising:
focusing a first electromagnetic radiation beam to a focal point at a location in the eye, the first electromagnetic radiation beam having a first polarization; focusing a second electromagnetic radiation beam to a focal point at the location in the eye, the second electromagnetic radiation beam having a second polarization different than the first polarization; generating a first intensity signal indicative of an intensity of electromagnetic radiation reflected from the eye in response to the step of focusing the first electromagnetic radiation beam; generating a second intensity signal indicative of an intensity of electromagnetic radiation reflected from the eye in response to the step of focusing the second electromagnetic radiation beam; and generating one or more images of the eye with the first and second intensity signals and utilizing these signals for treatment planning.