Intraoperative estimation of intraocular lens power

• US 9,445,890 B2
• Filed: 12/05/2013
• Issued: 09/20/2016
• Est. Priority Date: 04/10/2003
• Status: Active Grant

• Current Assignee: Alcon Incorporated
• Original Assignee: WaveTec Vision Systems, Inc. (Alcon Incorporated)
• Inventors: Ianchulev, Tsontcho
• Primary Examiner(s): DANG, HUNG XUAN
• Application Number:
  US14/098,447
• Publication Number:
  US 20140249624A1
• Time in Patent Office: 1,020 Days
• Field of Search: 351/246, 351/221, 351/208, 351/212, 623/6.11, 623/6.12, 606/27, 128/898
• US Class Current: 1/1
• CPC Class Codes: A61B 3/0033 characterised by user input arrangements
• CPC Class Codes: A61B 3/1015 for wavefront analysis
• CPC Class Codes: A61B 3/103 for determining refraction, e.g. refractometers, skiascopes
• CPC Class Codes: A61B 3/13 Ophthalmic microscopes
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 9/0017 implantable in, or in contact with, the eye, e.g. ocular inserts

Abstract

Apparatus for performing intraocular implant surgery, including surgical apparatus for performing intraocular implant surgery, an autorefraction device associated with the surgical apparatus, wherein the autorefraction device is configured to perform autorefraction on the aphakic eye to provide one or more aphakic refraction measurements, and a processor connected to the autorefraction device, wherein the processor is configured to process the aphakic refraction measurements and provide the user of the apparatus with information regarding the power of the intraocular lens.

Claims

1. An ophthalmic method comprising:

using an instrument that is associated with a surgical microscope to intraoperatively measure one or more optical properties of an eye from which the natural lens has been removed; and

selecting an artificial lens to be inserted into the eye at least partially using the one or more measured optical properties.

2. An ophthalmic method comprising:

intraoperatively measuring one or more optical properties of an eye into which an artificial intraocular lens has been inserted; and

determining a residual refractive error of the eye at least partially using the one or more measured optical properties in order to facilitate an intraoperative corrective action to reduce the residual refractive error.

3. An ophthalmic apparatus comprising:

a measurement device configured to be associated with a surgical microscope, wherein the measurement device is configured to intraoperatively measure one or more optical properties of an aphakic or pseudophakic eye; and

a processor communicatively coupled to the measurement device, wherein the processor is configured to process the one or more measured optical properties and to provide a user with information for selection of an intraocular lens to be implanted into the eye or with information regarding an intraoperative corrective action to reduce residual refractive error.