REAL-TIME CORNEAL PROFILER

实时角膜轮廓仪

• 批准号: 3497114
• 负责人: MICHAEL HERCHER
• 金额: $ 4.96万
• 依托单位: OPTRA, INC.
• 依托单位国家: 美国
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-09-30 至 1991-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3497114
• 关键词: clinical biomedical equipment; cornea; keratoplasty

A corneal profiler is proposed, with the following features: 1) Long working distance: at least 4 inches 2) Full corneal diameter: 10mm. 3) Independent of corneal state: able to work with corneas wet by tears or dry(er) during surgery. This is because this device works by scattered light, not by reflection. 4) Fast: this is TV rate imaging profiler, so a measurement takes 1/30 second. 5) Low Cost: $5,000 is the target price for a complete system. 6) Accurate: 1/4 diopter resolution. 7) Insensitive to alignment error: because the instrument does not depend on reflected light, its profile map is independent of viewing direction of axis. Rotation of the map to the corneal apex can then be done in software. An instrument with these capabilities is critically needed for monitoring the progress of corrective corneal surgery and related procedures, as a research tool, and in more precise and rapid fitting of contact lenses.

提出了一种角膜剖面仪，具有以下特点： 1)工作距离长：至少4英寸 2)全角膜直径：10 mm。 3)与角膜状态无关：能够在角膜被泪水弄湿或 手术中的干燥(呃)。这是因为这个设备是分散工作的 光，而不是反射。 4)速度快：这是电视速率成像剖面仪，所以测量需要1/30 第二。 5)低成本：5000美元是一个完整系统的目标价格。 6)准确：1/4屈光度分辨率。 7)对准误差不敏感：因为仪器不依赖于 在反射光上，其轮廓图与观察方向无关 轴心。然后，可以将地图旋转到角膜顶点 软件。 迫切需要一种具有这些功能的仪器来进行监测 矫正角膜手术和相关程序的进展 研究工具，并在更精确和快速的隐形眼镜配戴。