Abstract:

Objective To analyze the clinical characteristics of complicated traumatic cyclodialysis. Design Retrospective case series. Participants 44 patients (44 eyes) with complicated traumatic cyclodialysis in Beijing Tongren Eye Center during January 2013 to January 2015. Methods Retrospective analysis of demographic and clinical characteristics of patients was performed. Main Outcome Measures Age, gender, laterality, etiology of trauma, visual acuity, intraocular pressure(IOP), range of cyclodialysis, and other trauma related complications.  Results Average age of patients was 43±14 years old. There were 39 cases (88.6%) in men and 52.3% in the right eye. The most common injury reason was blunt trauma (95.5%), mainly with iron block, firecracker and boxing. The mean visual acuity on first visit was 2.3±1.1 logMAR. The mean IOP was 8.0±3.4 mmHg. 79.6% of the patients had low intraocular pressure while 31.8% had shallow anterior chamber. The IOP was not significantly associated with the range of cyclodialysis(r=-0.09, P=0.56). The mean cyclodialysis range was 4.8±3.2 clock hours, of which 16 cases (37%) had a range of over 180 degrees, and 3 cases had a range of 360 degrees. The superior temporal quadrant of the right eye, nasal superior quadrant and superior temporal quadrant of the left eye were liable to cyclodialysis. Other  trauma-related complications included lens dislocation and cataract(84.1%), hyphema(31.8%), angle recession (18.2%), iridodialysis (34.1%), vitreous hemorrhage (54.5%), and retinal detachment (31.8%). Conclusion Traumatic cyclodialysis is usually complicated with multiple ocular tissue damage mainly with lens injury. Clinicians need to be vigilant about cyclydialysis in complicated blunt trauma even if without intraocular hypotony or shallow anterior chamber. (Ophthalmol CHN, 2018, 27: 301-304)

Key words: cyclodialysis, eye trauma, ultrasound biomicroscopy