Subjective Refraction by Meridional Power Matching

通过子午度功率匹配进行主观验光

• 批准号: 6443437
• 负责人: Edwin Jay Sarver
• 金额: $ 8.74万
• 依托单位: SARVER AND ASSOCIATES, INC.
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-04-01 至 2002-09-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6443437
• 关键词: bioengineering /biomedical engineering; computer program /software; computer system design /evaluation; diagnosis design /evaluation; eye disorder diagnosis; eye refractometry; optics; refractive keratoplasty; vision disorders

DESCRIPTION (provided by applicant): Objectives: Design, develop, validate and market a low-cost, easy-to-use subjective refractor unit to quickly and accurately measure a patient's required vision correction in terms of sphere, cylinder and axis. Specific Aims: Establish the scientific merit and feasibility of the subjective refraction by meridional power matching technique by 1) designing an off-the-shelf SR-MPM using ZEMAX; 2) constructing and calibrating the SR-MPM breadboard; 3) developing software to generate patterns for display and convert SR-MPM outputs to a traditional refractive prescription; 4) determining the reproducibility of the SR-MPM; 5) comparing SR-MPM to traditional subjective refraction; 6) identifying design parameters needing optimization. Health Relatedness: The goal of the SR-MPM project is to provide low-cost accurate and quick measurements of a patient's required vision correction. Methods: Clinical applications of the SR-MPM will be defined and used to specify software and database requirements for Phase I. Optical system design will utilize optical engineering software. All software for the prototype will be developed and run on a PC. Test cases will be generated to validate the software implementation. Feasibility of the SR-MPM project will be evaluated per specified criteria. Technological Innovation: Providing an accurate, low-cost, low-maintenance refractor that can be easily transported and used in hostile environments. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE

描述（由申请人提供）： 目标：设计、开发、验证和 销售一种低成本、易于使用的主观验光装置，以快速、方便地 准确测量患者所需的球面视力矫正量， 圆柱体和轴。 具体目标： 确立主观的科学价值和可行性 通过子午功率匹配技术进行折射 1) 设计一个 使用 ZEMAX 的现成 SR-MPM； 2）构建和校准SR-MPM 面包板； 3）开发软件来生成用于显示和转换的图案 SR-MPM 输出至传统屈光处方； 4) 确定 SR-MPM 的再现性； 5）SR-MPM与传统主观比较 折射; 6) 确定需要优化的设计参数。 健康相关性：SR-MPM 项目的目标是提供低成本 准确、快速地测量患者所需的视力矫正。 方法：SR-MPM 的临床应用将被定义并用于 指定第一阶段的软件和数据库要求。光学系统设计 将利用光学工程软件。原型的所有软件都将 可以在PC上开发和运行。将生成测试用例来验证 软件实施。将评估SR-MPM项目的可行性 根据指定的标准。 技术创新：提供准确、低成本、低维护 折射器可以轻松运输并在恶劣环境中使用。 拟议的商业应用：不可用