exophthalmometer
英文介绍
An exophthalmometer is a medical instrument used to measure the degree of eyeball protrusion. Here is a detailed introduction:
- Structure and Working Principle: Generally, an exophthalmometer consists of a measuring scale, a fixing device and a viewing mechanism. It works based on the principle of geometric measurement. The fixing device is used to fix the position of the instrument relative to the face, usually by contacting the lateral orbital margin. The measuring scale is used to read the distance from the front – most point of the cornea to a certain reference plane, so as to obtain the value of eyeball protrusion. The viewing mechanism allows the examiner to accurately observe and measure the position of the cornea.
- Types: There are different types of exophthalmometers. Traditional manual exophthalmometers require the examiner to measure and read the value manually, which is simple and easy – to – use, but may be affected by human factors. Modern electronic exophthalmometers use advanced sensors and digital display technology, which can provide more accurate and rapid measurement results, and are often equipped with data storage and transmission functions.
- Clinical Significance: The exophthalmometer is of great significance in clinical practice. It is mainly used for the diagnosis and condition assessment of diseases accompanied by eyeball protrusion, such as Graves’ ophthalmopathy, orbital tumors, and orbital inflammation. By regularly measuring the degree of eyeball protrusion, doctors can understand the development of the disease, evaluate the curative effect of treatment, and formulate reasonable treatment plans.
中文介绍
眼球突出计是一种用于测量眼球突出程度的医疗仪器。具体介绍如下：
- 结构与工作原理：眼球突出计一般由测量刻度、固定装置和观察机构组成。其工作基于几何测量原理，固定装置用于将仪器相对于面部的位置固定，通常是通过与眼眶外侧缘接触来实现。测量刻度则用于读取角膜最前端到某一参考平面的距离，从而得出眼球突出值。观察机构可让检查者准确观察和测量角膜的位置。
- 类型：眼球突出计有不同的类型。传统的手动眼球突出计需要检查者手动测量和读取数值，操作简单便捷，但可能会受人为因素影响。现代的电子眼球突出计则采用先进的传感器和数字显示技术，能提供更精准、快速的测量结果，且往往配备数据存储与传输功能。
- 临床意义：眼球突出计在临床上具有重要意义，主要用于伴有眼球突出的疾病的诊断与病情评估，如 Graves 眼病、眼眶肿瘤、眼眶炎症等。通过定期测量眼球突出程度，医生可了解疾病的发展情况，评估治疗效果，进而制定合理的治疗方案。