The incidence of increased intraocular pressure and clinical course in traumatic hyphema

Purpose: This study aimed to investigate the incidence of increased intraocular pressure (IOP) and the clinical course of traumatic hyphema. Methods: We retrospectively reviewed the medical records of traumatic hyphema patients from March 2016 to January 2019. Based on whether the IOP exceeded 21 mmHg, the patients were divided into two groups: increased IOP (IIOP) hyphema grade, and intraocular damage. We compared the two groups based on sex, age, cause of trauma, IOP, visual acuity, follow-up period, and hyphema grade. The IIOP group was also divided into two groups: treatment continuation and treatment termination. We compared the two groups on the same aforementioned basis. Results: Of the 181 eyes, 53 (29.3%) were in the IIOP group. The initial IOP (p < 0.001), hyphema grade (p < 0.001), rebleeding incidence (p = 0.011), and intraocular damage (p = 0.027) were statistically significant between the two groups. The treatment continuation group for IIOP had 11 (20.8%) eyes, and the age (p = 0.029) and intraocular damage (p = 0.010) were statistically different from the treatment termination group. Conclusions: The incidence of increased IOP was 29.3%. Continuous treatment was needed in 20.8% of the increased IOP cases, and the age and intraocular damage were related.