Otsuka Yuki, Ooto Sotaro, Yoshimura Nagahisa
Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Retin Cases Brief Rep. 2019;13(3):227-231. doi: 10.1097/ICB.0000000000000563.
To assess changes in the posterior vitreous caused directly by phacoemulsification with implantation of an intraocular lens, using the enhanced vitreous swept-source optical coherence tomography system (Topcon, Tokyo, Japan).
Consecutive patients with cataract without posterior vitreous detachment were enrolled. Swept-source optical coherence tomography examinations were performed 1 day before and several days after surgery, using enhanced vitreous visualization. We compared preoperative and postoperative posterior vitreous status and measured the distance between the internal limiting membrane and the posterior vitreous membrane at 26 locations at the posterior pole.
Images of 33 eyes (21 patients) could be analyzed. The perifoveal posterior vitreous detachment was not extended in any eyes, and the internal limiting membrane to posterior vitreous membrane distance before and after surgery did not differ at any location measured (P = 0.071-1.000). The posterior precortical vitreous pocket was dilated in three eyes. Age, gender, axial length, preoperative visual activity, nuclear sclerosis, duration of surgery, and duration between surgery and swept-source optical coherence tomography did not differ between the dilated vitreous pocket group (n = 3) and the unchanged group (n = 30).
The height of the posterior vitreous membrane remained unchanged after surgery, although the posterior precortical vitreous pocket was dilated in three patients. Cataract surgery procedures seem to have little influence on the posterior vitreous membrane.
使用增强型玻璃体扫频光学相干断层扫描系统（日本东京拓普康公司）评估白内障超声乳化联合人工晶状体植入术直接导致的玻璃体后部变化。
纳入连续的无玻璃体后脱离的白内障患者。术前1天及术后数天使用增强型玻璃体可视化技术进行扫频光学相干断层扫描检查。我们比较了术前和术后玻璃体后部状态，并测量了后极部26个位置的内界膜与玻璃体后膜之间的距离。
可分析33只眼（21例患者）的图像。所有眼中黄斑周围玻璃体后脱离均未扩展，手术前后在任何测量位置的内界膜至玻璃体后膜距离均无差异（P = 0.071 - 1.000）。三只眼的皮质前玻璃体后间隙增宽。玻璃体间隙增宽组（n = 3）与未改变组（n = 30）在年龄、性别、眼轴长度、术前视力、核硬化程度、手术时长以及手术与扫频光学相干断层扫描之间的时间间隔方面无差异。
尽管三名患者的皮质前玻璃体后间隙增宽，但术后玻璃体后膜的高度保持不变。白内障手术操作似乎对玻璃体后膜影响很小。
