HAND HELD DIGITAL OPHTHALMOSCOPE

手持式检眼镜已被证明是视网膜疾病的重要筛查工具。今天使用的所有手持式检眼镜都使用直接检眼镜或间接检眼镜的原理。目前使用的大多数手持式检眼镜都是直接检眼镜。这些设备允许单个观察者查看患者视网膜的病理情况。直接检眼镜要求观察者和病人之间的距离很近，视野有限，不能很好地穿透小瞳孔。间接检眼镜允许观察者和病人之间有更大的距离，有更大的视野，并且能够更好地穿透小瞳孔。这两种方法一次只允许一个观察者。在门诊环境下，观察结果的记录必须用速写法完成。眼科检查方面的培训不足或不足是很常见的，导致视网膜疾病（如糖尿病视网膜病变）筛查频率严重不足。我们提出了一种以间接检眼镜为灵感的数字手持式检眼镜。它将允许多个同时的观察员，即时的硬拷贝文件，并提高易用性。我们相信这些特征可以增加眼科检查和使用的频率，从而改善医疗保健服务。建议的商业应用：手持式数字检眼镜的潜在商业应用是广泛的。它特别适用于糖尿病、高血压以及一般视网膜病变的筛查工具。眼底镜检查的硬拷贝文档，易用性和多观察者功能使其成为卫生保健专业人员，特别是初级保健医生的简单而有用的设备。

Hand-held ophthalmoscopes have been demonstrated to be important screening tools for retinal disease. All hand-held ophthalmoscopes that are used today use the principles of either direct ophthalmoscopy or indirect ophthalmoscopy. The majority of hand-held ophthalmoscopes in present use are direct ophthalmoscopes. These devices allow an individual observer to view a patient's retina for pathology. Direct ophthalmoscopes require close proximity between the observer and the patient, have a limited field of view, and are unable to penetrate small pupils well. Indirect ophthalmoscopes allow greater distance between observer and patient, have a larger field of view, and are better able to penetrate small pupils. Both approaches permit only a sole observer at a time. In the ambulatory setting, documentation of observations must be made by sketch. Inadequate or insufficient training in ophthalmoscopy is common, resulting in a serious shortfall in the frequency of screening for retinal disease, e.g. diabetic retinopathy. We propose a digital hand-held ophthalmoscope that takes its inspiration from indirect ophthalmoscopy. It would allow for multiple simultaneous observers, immediate hard copy documentation, and improved ease-of-use. We believe that these features can increase the frequency of ophthalmoscopic screening and use, and thus, improve health care delivery. PROPOSED COMMERCIAL APPLICATION: Potential commercial applications of the hand-held digital ophthalmoscope are wide ranging. It has particular application as a screening tool for the effects of diabetes, hypertension, as well as for general retinopathy. Hard copy documentation of fundoscopy, ease of use, and multiple observer capability make it a simple and useful device for health care professionals, especially primary care physicians.