摘要
目的探讨Pentacam在晶状体异物诊断及定位中的应用价值。方法为比较性研究。收集经手术证实的晶状体异物病例9例，所有患者术前均完成裂隙灯显微镜、普通B超、UBM、CT及Pentacam三维眼前节分析仪检查。结果9例晶状体异物病例中，通过裂隙灯显微镜直接检出者为4例，怀疑1例；通过B超检出5例；通过UBM、CT、Pentacam检出者均为6例。本组9例病例中，异物均经角膜穿通伤口达到并存留于晶状体，Pentacam能检出所有病例的角膜穿通伤口，晶状体前囊膜破口或机化，晶状体皮质溢出，外伤性白内障等晶状体异物相关体征。对于检出的晶状体异物病例，Pentacam可实现异物所在径线和异物与周围组织关系的精确定位；Pentacam在判定异物性质方面存在一定困难；Pentacam的异物测量值比实际测量值偏小。结论Pentacam在晶状体异物诊断及异物相关体征检出中具有实用价值；Pentacam可实现所检出异物的精确定位；联合应用其他检查方法可为晶状体异物的诊断和定位提供更为准确和详尽的信息。
Objective To study the value of Pentacam in the diagnosis and localization of intralenticular foreign body. Methods It was a comparative study. In this retrospective study, 9 cases with intralenticular foreign bodies were examined by using slit-lamp, B-mode ultrasound, ultrasound binmicroscopy （UBM）, CT and Pentacam. The results were confirmed by operation. Results Foreign bodies in 4 cases were detected by slit-lamp, with 1 case suspected; 5 cases by B-mode ultrasound; and 6 cases by UBM, CT and Pentacam. Projectile foreign bodies penetrated cornea and were remained in the lens in all 9 cases. In all cases, Pentacam detected all related signs of intralenticular foreign body, including corneal wound of entry, wound or organized wound in the anterior lens capsule, bulge of cortex lentis and traumatic cataract. Pentacam also could localize the meridian of foreign body precisely and could recognize the relationship between foreign body and neighour tissues. But it was difficult to recognize the nature of foreign body. The measured size of foreign bodies in Pentacam image was a little smaller than the actual size. Conclusions Pentacam has a valuable role in the diagnosis of intralenticular foreign body and the related damages. Pentacam could indicate precise location of intralenticular foreign body. Combined with multiple image-related methods. Pentacam can provide accurate and comprehensive information in the diagnosis and localization of intralenticular foreign body.
出处
《中华眼科杂志》
CAS
CSCD
北大核心
2010年第3期249-253,共5页
Chinese Journal of Ophthalmology
关键词
眼异物
晶体
眼损伤
穿通性
诊断技术
眼科
Eye foreign body
Lens, crystalline
Eye injuries, penetrating
Diagnostic techniques, ophthalmological
