Joe Wakil

US Patent:

61525650, Nov 28, 2000

Filed:

Dec 31, 1997

Appl. No.:

9/001339

Inventors:

David D. Liu - Irvine CA
Joe Wakil - Houston TX
Ken Carbonari - Houston TX
Greg Abbott - Spring TX

Assignee:

Premier Laser Systems, Inc. - Irvine CA

International Classification:

A61B 310

US Classification:

351212

Abstract:

A corneal topography system incorporating a handheld unit, a base unit and a computer. The handheld unit includes a placido projector, a light source and a camera that receives the image of the placido image being reflected off of the patient's cornea. The light source is preferably comprised of a lightweight luminescent panel such as an EL panel. The handheld unit further includes a laser and a display that are used to properly align the handheld unit with respect to the patient's cornea into a desired orientation. The resulting reflected image is captured when the handheld unit is in the desired orientation and this image can then be used to obtain corneal topography data for the patient's eye.

US Patent:

20160135681, May 19, 2016

Filed:

Jan 27, 2016

Appl. No.:

15/007921

Inventors:

Joe S. Wakil - Houston TX, US
Paul van Saarloos - Balcatta, AU
Vasyl Molebny - Kiev, UA
Sergiy Molebny - Kiev, UA

Assignee:

Tracey Technologies, Corp. - Houston TX

International Classification:

A61B 3/10
A61B 3/12
A61F 9/008
A61B 3/00

Abstract:

Provided herein are methods for objectively determining a visual axis of an eye. An optical axis of a measuring instrument is aligned with an unambiguously determinable axis of the eye which is the pupillary axis crossing the vertex of an anterior surface of a cornea and perpendicular to the vertex. A wave front tilt of radiation of a set of narrow laser beams backscattered from the retina is calculated as a tilt component in a polynomial that describes the wave front. The visual axis is reconstructed from a set of chief rays exiting from the eye after crossing nodal points of the optical system of the eye.

US Patent:

20140160438, Jun 12, 2014

Filed:

Dec 10, 2013

Appl. No.:

14/102257

Inventors:

Joe S. Wakil - Houston TX, US
Paul van Saarloos - Balcatta, AU
Vasyl Molebny - Kiev, UA
Sergiy Molebny - Kiev, UA

International Classification:

A61B 3/107

US Classification:

351246

Abstract:

Provided are methods for determining an axis of best vision of an eye or for objectively determining a visual axis of an eye and for making the most accurate measurement of refraction. Generally, an optical measuring device or instrument projects laser beams into the eye during a scan. Positions of the projected beams are detected and measured on the retina to produce a set of projections. Wave front tilt of radiation that is backscattered from the retina is calculated as a best fit from the set of projections. The axis of best vision or the visual axis is reconstructed from a set of those traces of chief rays exiting from the eye that cross the nodal point of the optical system of the eye and that are normal to the wave front tilts. Measuring with the Styles Crawford scans centered over this axis provides the most accurate objective refraction.