Stark John A, Foster Craig D, Yu Charles
Department of Civil and Materials Engineering, University of Illinois at Chicago, IL.
Department of Ophthalmology, Stanford University, CA.
Am J Undergrad Res. 2021 Mar;17(4):49-57. doi: 10.33697/ajur.2020.035.
Millions of people worldwide live with corneal opacity, which continues to be one of the leading causes of blindness. Corneal opacity is treatable. However, the surgical methods for treating this condition, such as corneal transplantation and keratoprosthesis, have many complications. The use of an intraocular projector is a promising approach to treat corneal blindness. Like any device using electrical power, an intraocular projection device produces heat, which could potentially damage eye tissue. Australian and international standards state that there cannot be an increase of temperature of 2 °C caused by an implanted device. In order to determine if these standards are met, a 2D axisymmetric thermal analysis of the projector in the human eye is conducted in ANSYS Workbench. With the projector operating at its maximum wattage, our analysis shows that an air gap extension within the projector will help maintain the temperature increase below 2 °C.
全球数以百万计的人患有角膜混浊，角膜混浊仍然是导致失明的主要原因之一。角膜混浊是可治疗的。然而，治疗这种疾病的手术方法，如角膜移植和人工角膜，有许多并发症。使用眼内投影仪是治疗角膜盲的一种有前景的方法。与任何使用电力的设备一样，眼内投影设备会产生热量，这可能会对眼组织造成潜在损害。澳大利亚和国际标准规定，植入设备引起的温度升高不能超过2摄氏度。为了确定是否符合这些标准，在ANSYS Workbench中对人眼内的投影仪进行了二维轴对称热分析。在投影仪以最大功率运行时，我们的分析表明，投影仪内气隙的扩展将有助于将温度升高保持在2摄氏度以下。
