Patents by Inventor Johan T. W. Van Dalen

Johan T. W. Van Dalen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8491123
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: July 23, 2013
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 8337517
    Abstract: A surgical apparatus including a system controller, a hand-held scalpel assembly, a first communication link interconnecting the hand-held scalpel assembly with the system controller, an actuator, and a second communication link interconnecting the actuator with said system controller.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 25, 2012
    Assignee: Eye Care and Cure Pte. Ltd
    Inventor: Johan T. W. Van Dalen
  • Patent number: 8308487
    Abstract: A model human eye suitable for practicing surgical procedures, comprising a hemispherical-shaped bottom assembly having a bowl-shaped substrate disposed therein, a retinal layer disposed on the bowl-shaped substrate, and a hemispherical-shaped top portion attached to the bottom portion, the top portion comprising a visually transparent cornea portion and a visually opaque sclera portion, wherein the cornea portion and the sclera portion are integrally molded, wherein the cornea portion comprises a posterior corneal surface, wherein a distance from the posterior corneal surface to the retinal layer is an axial length. The model human eye is particularly suited for practicing A-scan ultrasound biometry and optical coherence biometry.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: November 13, 2012
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 8308296
    Abstract: A testing device and method are presented for detecting binocular vision problems in patients. The testing device includes a body with a flat portion disposed along one side. Extending outwardly from the top of the body is an actuating means. The device further includes a first set of lights disposed on the surface of the device a first distance away from a center point and a second set of lights disposed a second distance away from the center point. Each of the lights in the first set are smaller than each of the lights in the second set. Further, the second distance is shorter than the first distance.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: November 13, 2012
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Publication number: 20120231432
    Abstract: A model human eye suitable for practicing surgical procedures, comprising a hemispherical-shaped bottom assembly having a bowl-shaped substrate disposed therein, a retinal layer disposed on the bowl-shaped substrate, and a hemispherical-shaped top portion attached to the bottom portion, the top portion comprising a visually transparent cornea portion and a visually opaque sclera portion, wherein the cornea portion and the sclera portion are integrally molded, wherein the cornea portion comprises a posterior corneal surface, wherein a distance from the posterior corneal surface to the retinal layer is an axial length. The model human eye is particularly suited for practicing A-scan ultrasound biometry and optical coherence biometry.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 13, 2012
    Applicant: EYE CARE AND CURE CORP.
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Publication number: 20120123313
    Abstract: An ophthalmological device, comprising an eye patch, a photovoltaic, and a battery, wherein said photovoltaic is interconnected to said battery.
    Type: Application
    Filed: October 5, 2011
    Publication date: May 17, 2012
    Inventor: Johan T.W. Van Dalen
  • Patent number: 8142459
    Abstract: A device for performing an anterior capsulotomy procedure and a method using the same is presented. The device includes a body having a rotatable cutting element rotatably disposed on the proximal end. The cutting element further includes multiple surgical blades. In certain embodiments, the device further includes an arcuate member, wherein two surgical blades are attached at opposing ends and extend outwardly from the arcuate member. In using the device to perform an anterior capsulotomy, the device is inserted into an incision made in an eye and the surgical blades are brought in contact with the anterior capsule wall. The anterior capsule wall is then transformed by rotating the rotatable cutting element, creating an aperture there through.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: March 27, 2012
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: 8137111
    Abstract: A model human eye comprising a cylindrical base portion comprising a bowl-shaped substrate disposed therein, and a plurality of retinal layers stacked on the surface of that bowl-shaped substrate. The model eye further comprises a hemi-spherical-shaped top portion comprising a visually transparent cornea portion and a visually opaque sclera portion comprising an inner surface, an annular iris continuously attached to the inner surface and extending inwardly therefrom, and a lenticular bag continuously attached to the iris, wherein the iris in combination with the lenticular bag and the cornea portion define an anterior chamber. The top portion is attached to the base portion to define a posterior chamber.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: March 20, 2012
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Dan D. Carda, Johan T. W. Van Dalen
  • Patent number: 8128412
    Abstract: A model human eye is disclosed. The model human eye comprises a extended hemispherical-shaped assembly comprising a center point, an open end defined by a first continuous distal end, a cornea portion symmetrically disposed around the center point, and a sclera portion disposed between the cornea portion and the first continuous distal end. The extended hemispherical-shaped assembly comprises an integral molding. The model human eye further comprises a lenticular bag disposed within the extended hemispherical-shaped assembly. The model human eye further comprises a base comprising a bottom and one or more walls attached to that bottom and extending outwardly therefrom, where the one or more walls comprise a second continuous distal end. The first continuous distal end is attached to the second continuous distal end to define an enclosed space. The lenticular bag separates the enclosed space into an anterior chamber and a posterior chamber.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 6, 2012
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Dan D. Carda, Johan T. W. Van Dalen
  • Publication number: 20120036609
    Abstract: An eye patch is presented that is usable with eyeglass frames comprising a lens and side arm. The eye patch comprises a conoidal member to be positioned over a front of the lens such that a frontal and a peripheral vision of an eye is substantially blocked and a flap having a releasable securing means, wherein the flap is to be positioned over a back of the lens such that the releasable securing means secures the eye patch to the eyeglass frames.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 16, 2012
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Publication number: 20120021397
    Abstract: A model human eye that is structurally suited for practicing surgical techniques, including extraocular muscle resection and recession, is presented. The model eye comprises a hemispherical-shaped, bottom assembly having multiple retinal layers and a hemispherical-shaped, integrally molded top assembly having a visually transparent cornea portion surrounding a visually opaque sclera portion. The model eye further comprises an annular iris, a lenticular bag, an anterior chamber having a first fluid disposed therein, and a posterior chamber having a second fluid disposed therein.
    Type: Application
    Filed: July 22, 2011
    Publication date: January 26, 2012
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Publication number: 20110199574
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. A light comprising a first color is projected onto a vertical surface, where the location of the light can be moved on the vertical surface. For each value of (i), an (i)th fixation point is then projected on the vertical surface, where the (i)th fixation point is one of (N) total fixation points and comprises the second color. For each value of (i), a perceived location is recorded upon receiving a signal that the (i)th fixation point is illuminated by the light. Finally, the (N) perceived locations are transformed into an ocular motor function map.
    Type: Application
    Filed: April 26, 2011
    Publication date: August 18, 2011
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Patent number: 7993003
    Abstract: A computer implemented method to form, display, and evaluate, a test for colorblindness, wherein the method selects one or more test images, displays those test images seriatim to a test subject using a visual display device. A response is received from the test subject to each of the displayed test images. Each response is compared to a nominal test subject response associated with the displayed test image. The type and number of test images displayed is determined based on the test subject's responses.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: August 9, 2011
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Dan D. Carda, Johan T. W. Van Dalen
  • Publication number: 20110069280
    Abstract: A method and an apparatus are presented for determining ocular motor function in a patient. The patient is instructed to wear a pair of test glasses comprising a first lens having a first color and a second lens having a second color, where the first color and the second color differ. (N) light-emitting devices disposed in a screen are then activated in seriatim, where the (N) light-emitting devices can emit a light comprising the first color and where (N) is greater than 1. (N) images of the screen are synchronously captured upon receiving a signal from the patient indicating an activated light-emitting device is illuminated by a light comprising the second color. Finally, the (N) images are transformed into an ocular motor functioning map.
    Type: Application
    Filed: September 21, 2009
    Publication date: March 24, 2011
    Applicant: EYE CARE AND CURE CORP.
    Inventors: JOHAN T.W. VAN DALEN, DAN D. CARDA
  • Publication number: 20110029005
    Abstract: A device for performing an anterior capsulotomy procedure and a method using the same is presented. The device includes a body having a rotatable cutting element rotatably disposed on the proximal end. The cutting element further includes multiple surgical blades. In certain embodiments, the device further includes an arcuate member, wherein two surgical blades are attached at opposing ends and extend outwardly from the arcuate member. In using the device to perform an anterior capsulotomy, the device is inserted into an incision made in an eye and the surgical blades are brought in contact with the anterior capsule wall. The anterior capsule wall is then transformed by rotating the rotatable cutting element, creating an aperture there through.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 3, 2011
    Applicant: EYE CARE AND CURE CORP.
    Inventors: Johan T.W. Van Dalen, Dan D. Carda
  • Patent number: 7780976
    Abstract: A flat strip of supporting material, such as filter paper, having marked reference locations on each of one or more legs, for delivering controlled quantities of one or more agents to the adnexa of the eye simultaneously upon dispensing a liquid to the strip at the appropriate reference location.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: August 24, 2010
    Assignee: Eye Care and Cure, Asia
    Inventor: Johan T. W. Van Dalen
  • Publication number: 20100188639
    Abstract: A computer implemented method to form, display, and evaluate, a test for colorblindness, wherein the method selects one or more test images, displays those test images seriatim to a test subject using a visual display device. A response is received from the test subject to each of the displayed test images. Each response is compared to a nominal test subject response associated with the displayed test image. The type and number of test images displayed is determined based on the test subject's responses.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 29, 2010
    Inventors: DAN D. CARDA, JOHAN T.W. VAN DALEN
  • Publication number: 20090219482
    Abstract: A testing device and method are presented for detecting binocular vision problems in patients. The testing device includes a body with a flat portion disposed along one side. Extending outwardly from the top of the body is an actuating means. The device further includes a first set of lights disposed on the surface of the device a first distance away from a center point and a second set of lights disposed a second distance away from the center point. Each of the lights in the first set are smaller than each of the lights in the second set. Further, the second distance is shorter than the first distance.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 3, 2009
    Applicant: EYE CARE AND CURE CORP.
    Inventors: JOHAN T.W. VAN DALEN, DAN D. CARDA
  • Patent number: D624658
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: September 28, 2010
    Assignee: Eye Care and Cure Pte Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda
  • Patent number: D674902
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: January 22, 2013
    Assignee: Eye Care and Cure Pte. Ltd
    Inventors: Johan T. W. Van Dalen, Dan D. Carda