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目的:目的:探讨先天性脉络膜缺损及合并网脱时的声像图特点。方法：采用美国惠普１５００ ５５００超声诊断仪，探头频率７．５－１０ Ｍ ＨＺ，扫描深度３－４ ｃｍ。结果：①脉络膜缺损的声像图特点为眼球后极部后凹畸形；②根据凹陷的球壁与正常球壁分界是否清晰分为皿型凹陷、浅弧型凹陷。前者多发生在年青人，且凹陷程度较深；后者多发生在中老年患者，凹陷程度也较浅。③脉络膜缺损可合并视网膜剥离，由于没有正常眼底做背景，经眼底镜诊断较困难，超声检查则可使网脱的范围、程度一目了然。结论：超声检查对脉络膜缺损或合并网脱的诊断有独到的应用价值。
Objective: To investigate the characteristics of congenital choroidal defects and echocardiography with combined reticulation. Methods: The American Hewlett-Packard 1500 5500 ultrasonic diagnostic apparatus, probe frequency 7.5-10 M HZ, scanning depth of 3-4 cm. Results: ① The choroidal defect was characterized by posterior pole posterior recession; ② According to whether the demarcation between the spherical wall and the normal wall was clear, it was divided into dish type depression and shallow arc type depression. The former occurred in young people, and the deeper depression; the latter occurred in middle-aged patients, the degree of depression is also shallow. Â ’¢ choroidal defects can be combined with retinal detachment, because there is no normal fundus background, the ophthalmoscope diagnosis is more difficult, ultrasonography can make off the network range, degree at a glance. Conclusion: Ultrasonography has a unique value in the diagnosis of choroidal defects or debridement.