Subjective Refraction by Meridional Power Matching

描述（由申请人提供）：目标：设计、开发、验证和 推出一种低成本、易于使用的主观验光仪， 准确测量患者所需的球面视力矫正， 圆柱体和轴。 具体目标：建立主观的科学价值和可行性 通过1）设计一个 使用ZEMAX的现成SR-MPM; 2）构建和校准SR-MPM 实验板; 3）开发软件以生成用于显示和转换的图案 SR-MPM输出到传统屈光处方; 4）确定 SR-MPM的再现性; 5）将SR-MPM与传统的主观 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的 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。原型的所有软件将 在PC上开发和运行。将生成测试用例以验证 软件实现。将评估SR-MPM项目的可行性 根据规定的标准。 技术创新：提供准确、低成本、低维护的 这种折射器可以很容易地在恶劣的环境中运输和使用。 拟议商业应用：不可用

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