AsiaIPEX is a one-stop-shop for players in the IP industry, facilitating IP trade and connection to the IP world. Whether you are a patent owner interested in selling your IP, or a manufacturer looking to buy technologies to upgrade your operation, you will find the portal a useful resource.

An Automated Digital Method for Analysis of Eyelid Position and Contour

Technology Benefits
• Digital inputs and automated outputs;• Uses iris recognition to identify the iris as a standard point for determining eyelid contour;• Allows establishment of standards based on gender, age and ethnicity;• Manual override, if necessary, in few cases where the computer does not detect the lids properly.
Technology Application
This new method can be applied to blepharoplasty to • objectively characterize the eyelid examination; • assess pre- and post-surgery eyelid contours of the same individual;• establish standards by age, gender, and ethnicity, and apply z-scores to compare an subject’s eyes to standards.
Detailed Technology Description
UCSD researchers have developed a novel method to achieve this purpose. As the iris size is consistent among subjects, the data measuring iris location is highly useful for comparing between subjects. Images of patient eyes are taken and iris registration is used to center the images, standardize focal length and minimize barrel distortion.The software developed by UCSD researchers then generates an automated graphical delineation of the upper and lower eyelid margins for each image. Based on digital analysis of these images, comparisons to normals are determined, according to age, gender, and ethnicity. Digital data analysis includes statistical comparison of these equations and their parameters.
Others

State Of Development

The method has been implemented in working prototype software, and used in beta testing to examine patients of both genders, various ages, and ethnicities.


PUBLICATIONS

Available upon request.

Nuyen B., Whipple, K., Nguyen, P, Korn, B., Kikkawa, D. Digital Image Analysis of Eyelid Contour and Position. Abstract. 2012. Annual Fall Scientific Symposium of American Society of Ophthalmic Plastic and Reconstructive Surgery


Tech ID/UC Case

23143/2013-117-0


Related Cases

2013-117-0

*Abstract
Eyelid contour deformities occur in aging and a number of medical conditions such as Graves disease, ptosis, postoperative lid abnormalities, and congenital lid abnormalities. Digital analysis of eyelid position and contour has the potential to objectively characterize the eyelid examination and improve preoperative and postoperative assessment.
*Principal Investigator

Name: Don Kikkawa

Department:


Name: Don Kikkawa

Department:


Name: Bobby Korn

Department:


Name: Bobby Korn

Department:


Name: Phuc Nguyen

Department:


Name: Brenda Nuyen

Department:


Name: Katherine Whipple

Department:

Country/Region
USA

For more information, please click Here
Mobile Device