Ophthalmic surgery measurement system

申请公布号：

US9259149(B2)

申请号：

US201314039965

申请日期：

2013.09.27

申请公布日期：

2016.02.16

申请人：

WaveTec Vision Systems, Inc.

发明人：

Holladay Jack T.;Padrick Thomas D.;Michaels Richard J.

分类号：

A61B3/14;A61B3/00;A61B3/10;A61F2/16

主分类号：

A61B3/14

代理机构：

Baker Botts L.L.P.

代理人：

Baker Botts L.L.P.

地址：

Aliso Viejo CA US

摘要：

An ophthalmic apparatus for measuring spatial distances within a patient's eye is disclosed. The apparatus can be used to measure, for example, the capsular bag depth in an aphakic eye. The spatial measurement system can direct laser light into a patient's eye so that a portion of the light is scattered by the capsular bag. The scattered light can be directed to a detector where spots can be formed corresponding to the locations on the capsular bag from which the light was scattered. The distance from the cornea to the capsular bag can be determined based, for example, at least in part on the distance between the spots formed on the detector. In some embodiments, the apparatus can include a surgical microscope and/or a wavefront aberrometer. In some embodiments, an alignment system can be used to precisely position the apparatus relative to the patient's eye. The ophthalmic apparatus can be used for variety of ophthalmic procedures, such as predicting the postoperative position of an intraocular lens (IOL) and determining appropriate optical power for the IOL.

主权项：

1. A method of determining the optical power for an intraocular lens to be implanted into an eye, the method comprising: measuring an intraoperative characteristic of the eye with at least one laser beam, the intraoperative characteristic comprising the distance between selected portions of a cornea of the eye and a capsular bag of the eye; and determining the optical power for the intraocular lens based at least in part on the measured intraoperative characteristic.