Kahramanmaraş Sutcu Imam University Health Practice and Research Hospital, Ophthalmology Department.
Turkoglu Dr. Kemal Beyazit State Hospital, Eye Clinic.
Photodiagnosis Photodyn Ther. 2023 Sep;43:103681. doi: 10.1016/j.pdpdt.2023.103681. Epub 2023 Jun 28.
To evaluate retinal and choroidal vascular changes in cases with hyphema after blunt ocular trauma that did not cause globe rupture or any retinal pathology.
This cross-sectional study included 29 patients who developed hyphema after unilateral blunt ocular trauma (BOT). The other healthy eyes of the same patients were evaluated as the control group. Optical coherence tomography-angiography (OCT-A) was used for imaging. In addition, choroidal parameters were compared by calculating the choroidal vascular index (CVI) and using choroidal thickness measurements by two independent researchers.
Superior and deep flow values were significantly decreased in the traumatic hyphema group compared to the control group (p<0.05). Parafoveal deep vascular density (parafoveal dVD) values were decreased in traumatized eyes compared to control eyes (p=0.000). Vascular density values were similar other than that. In addition, there was a significant decrease in optic disc blood flow (ODF) and optic nerve head density (ONHD) values compared to the control group (p<0.05). In addition, no significant difference was observed between the groups in terms of mean CVI values (p>0.05).
Non-invasive diagnostic tools such as OCTA and EDI-OCT can be used to detect and monitor early changes in retinal and choroidal microvascular flow in cases of traumatic hyphema.
评估钝挫伤性前房积血但未导致眼球破裂或任何视网膜病变的患者的视网膜和脉络膜血管变化。
本横断面研究纳入 29 例单侧钝挫伤性前房积血患者。同一患者的对侧健康眼作为对照组进行评估。采用光学相干断层扫描血管造影（OCT-A）进行成像。此外，通过计算脉络膜血管指数（CVI）并由两名独立研究人员测量脉络膜厚度来比较脉络膜参数。
与对照组相比，外伤性前房积血组的上方和深层血流值显著降低（p<0.05）。与对照组相比，损伤眼的中心凹下深层血管密度（parafoveal dVD）值降低（p=0.000）。除了这一点，其他血管密度值相似。此外，与对照组相比，视盘血流（ODF）和视神经头密度（ONHD）值显著降低（p<0.05）。此外，两组的平均 CVI 值无显著差异（p>0.05）。
非侵入性诊断工具，如 OCT-A 和 EDI-OCT，可用于检测和监测外伤性前房积血患者视网膜和脉络膜微血管血流的早期变化。
