Abstract Corneal opacity is a leading cause of blindness, accounting for about 4% of global blindness. With corneal opacity, light is unable to pass through the cornea to form a clear image on the retina, resulting in blindness. To address this condition, an intraocular projection device has been designed. This device, while in use, would produce heat. According to international standard regulations, the temperature on the surface of the tissues should not increase more than 2° C due to medical devices. In order to establish the power budget of this intraocular electronic device, a steady state thermal finite element analysis was conducted on two different eye models. The device was placed at 9.98 mm from the retina, and was seen to run up to a maximum power of 82 mW for the first model and 91 mW for the second model. To reduce heating of tissues, the device was extended by 0.5 mm to create an air gap which acted as an insulator. The temperature in the nearest living tissue then dropped below the prescribed limit of 2° C at 100 mW.

中文翻译：

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眼内电子显示投影仪视觉假体的热分析

摘要 角膜混浊是导致失明的主要原因，约占全球失明的4%。由于角膜混浊，光线无法穿过角膜在视网膜上形成清晰的图像，从而导致失明。为了解决这个问题，设计了一种眼内投影装置。该设备在使用时会产生热量。根据国际标准规定，由于医疗器械的影响，组织表面温度不应升高超过2°C。为了确定这种眼内电子设备的功率预算，对两个不同的眼睛模型进行了稳态热有限元分析。该设备放置在距视网膜 9.98 毫米的位置，第一个模型的最大功率为 82 mW，第二个模型的最大功率为 91 mW。为了减少组织的加热，该装置延长了 0.5 毫米，以形成一个充当绝缘体的气隙。然后，在 100 mW 功率下，最近的活体组织的温度下降到 2°C 的规定限值以下。