Maneschg O A, Volek E, Lohinai Z, Resch M D, Papp A, Korom C, Karlinger K, Németh J
Klinik für Augenheilkunde, Semmelweis Universität Budapest, Mária utca 39, 1085, Budapest, Ungarn,
Ophthalmologe. 2015 Apr;112(4):359-63. doi: 10.1007/s00347-014-3230-x.
BACKGROUND/OBJECTIVES: The aim of the study was to evaluate the volume of intraocular foreign bodies (IOFB) using computed tomography (CT) volumetry as a prognostic factor for clinical outcome in open ocular injuries.
This study compared the volume of 11 IOFBs more than 5 mm(3) in size based on CT volumetry with the real size determined by in vitro measurement. A retrospective evaluation of clinical data, visual acuity, complications and relation of size of IOFBs with clinical outcome in 33 patients (mean age 41.0 ± 13.5 years) with open ocular injuries treated at our department between January 2005 and December 2010 was carried out.
No significant differences were found between pairwise in vitro measurement and CT volumetric size (p = 0.07). All patients were surgically treated by pars plana vitrectomy. The mean follow-up time was 7.6± 6.2 months and the mean preoperative best corrected visual acuity (BCVA) was 0.063 ± 0.16 (logMAR 1.2 ± 0.79). Postoperatively, a mean BCVA of 0.25 ± 0.2 (logMAR 0.6 ± 0.69) could be achieved. Clinical outcomes were significantly better in injuries with small IOFBs measuring < 15 mm(3) (p = 0.0098).
The use of CT volumetry is an accurate method for measurement of IOFBs. Exact data about the size and measurement of volume are also an important factor for the prognosis of clinical outcome in open ocular injuries with IOFBs and CT volumetry can also provide important information about the localization of IOFBs.
背景/目的：本研究旨在通过计算机断层扫描（CT）容积测量法评估眼内异物（IOFB）的体积，将其作为开放性眼外伤临床结局的一个预后因素。
本研究基于CT容积测量法，比较了11个体积超过5立方毫米的眼内异物的体积与通过体外测量确定的实际大小。对2005年1月至2010年12月间在我科接受治疗的33例（平均年龄41.0±13.5岁）开放性眼外伤患者的临床资料、视力、并发症以及眼内异物大小与临床结局的关系进行了回顾性评估。
体外测量与CT容积测量大小之间两两比较未发现显著差异（p = 0.07）。所有患者均接受了玻璃体切割术。平均随访时间为7.6±6.2个月，术前平均最佳矫正视力（BCVA）为0.063±0.16（logMAR 1.2±0.79）。术后平均BCVA可达0.25±0.2（logMAR 0.6±0.69）。体积小于15立方毫米的小眼内异物损伤的临床结局明显更好（p = 0.0098）。
CT容积测量法是测量眼内异物的一种准确方法。关于眼内异物大小和体积测量的精确数据也是开放性眼外伤合并眼内异物临床结局预后的一个重要因素，并且CT容积测量法还可提供有关眼内异物定位的重要信息。
