To analyze the surgery efficacy and the pathogenesis of Terson syndrome.

The clinical data of 18 eyes of 10 patients with Terson syndrome treated with vitrectomy from Sep. 2017 to Oct. 2019 in the First Hospital of Shanxi Medical University were analyzed retrospectively. Preoperative and postoperative visual acuity were compared. The relations between the different surgical timing and efficacy were compared, and the pathogenesis of Terson syndrome were analyzed.

The visual acuity (BCVA, log MAR) of all patients at 1 month postoperatively was 0.36±0.28, which was better than the 2.78±0.43 before surgery(t=20.12, P<0.05). The postoperative visual acuity of the shorter course group (<3 months) was 0.36±0.19, which was better than the 0.74±0.22 of the longer course group (≥3 months) and the difference was statistically significant(t=13.480, P=0.008). Introperatively, all cases were found to have highly similar clinical features, such as yellow-white domes in the early stage and similar near-round lesions in the late stage, strip bleeding and opacity starting from the optic disc and centered on Cloquet’s canal.

Vitrectomy for Terson syndrome can effectively improve visual acuity. The early surgery is performed, the better vision is achieved. According to the fundus diseases, it is speculated that the pathogenesis of Terson syndrome may be caused by intracranial hypertension leading to the blood penetrating the lamina cribrosa sclerae into vitreous body or the rupture of the retinal venula and capillaries because of venous occlusion.

Syndrome, Terson; Vitrectomy; Pathogenesis