THINNER AND OPTICALLY SUPERIOR DEVICES FOR LOW VISION

适用于低视力人群的更薄、光学性能更佳的设备

• 批准号: 6072614
• 负责人: RANJANA PANDYA
• 金额: $ 31.96万
• 依托单位: PALTZ ASSOCIATES, INC.
• 依托单位国家: 美国
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-04-01 至 2002-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6072614
• 关键词: biomedical equipment development; clinical research; clinical trials; eye coordination disorder; human subject; human therapy evaluation; optics; outcomes research; vision aid; vision disorders

DESCRIPTION (Adapted From The Applicant's Abstract): A number of vision devices (particularly those for low vision) make use of high power prismatic corrections. In these situations, the standard ophthalmic prisms become too thick, heavy, and impractical. Fresnel prisms are used as alternatives, but they suffer from a number of problems, including poor optical quality. New composite prisms were designed and tested in phase I of this project. They have resulted in a significant reduction in thickness as compared to standard ophthalmic prisms. For high power prisms, their optical performance is better than equivalent refractive prisms and far better than Fresnel prisms. As a result, they could prove useful for a number of vision applications: high magnification reading spectacles, correction of diplopia, visual field remediation of hemianopic patients, diagnostics, etc. The aim of phase II is to establish a process to produce these composite prisms in a cost effective and reproducible manner, use them to make spectacles and have them tested in extensive clinical trials by patients suffering from conditions mentioned above. Briefly put, the aim is to have these devices ready for commercialization at the conclusion of phase II. PROPOSED COMMERCIAL APPLICATION: Composite prisms have the potential to be useful for a number of vision applications where moderate to high prism powers are needed. Patients suffering from diplopia (double vision), hemianopia, strabismus, convergence insufficiency and anomalous correspondence could benefit from these devices. They may also be helpful for patients with restricted visual fields resulting from strokes or other conditions such as glaucoma and retinitis pigmentosa. Low vision patients who need high magnification reading spectacles could benefit from composite prisms as well. For such patients, composite prisms can be used to reduce eye strain and improve the chances of attaining binocular vision. They could also be useful for conditions such as torticollis and synostosis where visual image relocation may be needed.

描述（改编自申请人的摘要）： （特别是那些低视力）利用高功率棱镜 更正。在这些情况下，标准眼科棱镜变得太 又厚又重又不实用菲涅耳棱镜被用作替代品，但 但是它们存在许多问题，包括光学质量差。新 在该项目的第一阶段，设计并测试了复合棱镜。他们有 导致与标准相比厚度显著减小 眼科棱镜对于高功率棱镜，它们的光学性能更好 比等效的折射棱镜好得多，也比菲涅耳棱镜好得多。作为 结果，它们可以证明对许多视觉应用有用：高 放大阅读眼镜，复视矫正，视野 偏盲患者的矫正、诊断等。第二阶段的目的是 建立一种生产这些复合棱镜的方法， 以可重复的方式，用它们来制作眼镜，并在 由患有上述病症的患者进行的广泛临床试验 以上简而言之，目的是让这些设备准备好， 在第二阶段结束时实现商业化。 拟定商业应用： 复合棱镜具有用于许多视觉应用的潜力，其中 需要中等到高的棱镜光焦度。 患有复视（复视）的患者， 偏盲、斜视、会聚不足和异常对应可 从这些设备中受益。 它们也可能对视野受限的患者有帮助 由中风或其它病症如青光眼和色素性视网膜炎引起。 低 需要高放大率阅读眼镜的视力患者可以受益于复合棱镜 也 对于这样的患者，可以使用复合棱镜来减少眼睛疲劳并改善视力。 获得双眼视觉的机会。 它们也可能对斜颈等疾病有用 以及可能需要视觉图像重新定位的骨缝结合。