Title:
【発明の名称】瞳孔スレショルド反応を判断する自動化システム及び方法
Document Type and Number:
Japanese Patent JPH10500032
Kind Code:
A
Abstract:
An automated system and method for determining pupillary threshold response is described. The system achieves the determination of pupillary threshold levels through the measurement of supra-threshold responses at varying light intensities, which measured values are processed by a non-linear regression routine to approximate threshold response. The system takes supra-threshold measurements by means of a computerized pupillometer which is linked to an automated perimeter. The measurements are sequentially taken at varied light intensities which are reiteratively selected in response to the comparison between responses that have been previously measured during the test and a pre-stored response curve of expected values. The measured values are then processed by a non-linear regression routine to indirectly generate an estimated threshold level. The system is fully automated, produces accurate and reliable results, and is not subject to the uncertainties which are attendant with the measurement of threshold levels by the taking of subjective measurements.
Inventors:
Cardon, Randy H
Application Number:
JP52184795A
Publication Date:
January 06, 1998
Filing Date:
February 10, 1995
Export Citation:
Assignee:
University of Iowa Research Foundation
International Classes:
A61B3/06; A61B3/10; A61B3/11; (IPC1-7): A61B3/06; A61B3/10; A61B3/11
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)