RT Journal Article SR Electronic T1 Intraocular pressure change after injection of intravitreal dexamethasone (Ozurdex) implant in Korean patients JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1380 OP 1387 DO 10.1136/bjophthalmol-2018-312958 VO 103 IS 10 A1 Choi, Wungrak A1 Park, Sung Eun A1 Kang, Hyun Goo A1 Byeon, Suk Ho A1 Kim, Sung Soo A1 Koh, Hyoung Jun A1 Lee, Sungchul A1 Seong, Gong Je A1 Kim, Chan Yun A1 Kim, Min YR 2019 UL http://bjo.bmj.com/content/103/10/1380.abstract AB Background/Aims To analyse intraocular pressure (IOP) changes over a period of 1 year after intravitreal dexamethasone (DEX, Ozurdex) implant injection and to compare the results with those of previously published studies that involved non-Asian populations.Methods A retrospective observational study was conducted. A total of 540 eyes of 503 patients who received DEX implant injection and were diagnosed with macular oedema (ME) due to various retinal diseases were examined. IOP was measured prior to injection and at 1 week, 1 month, 2 months, 3 months, 6 months and 12 months after DEX implant injection. IOP elevation was divided into four categories: postinjection IOP of >35 mm Hg, >30 mm Hg and >25 mm Hg, and an IOP elevation of >10 mm Hg, relative to the baseline measurement.Results The mean baseline IOP was 13.45±2.95. The mean IOP gradually increased until 2 months postinjection (IOP=16.85±5.96 mm Hg, p<0.001) and then gradually decreased until 12 months postinjection (IOP=13.80±4.04mm Hg, p=0.16). IOP was >25 mm Hg in 57 eyes (10.6%), >30mm Hg in 29 eyes (5.4%) and >35mm Hg in 9 eyes (1.7%); IOP exhibited >10 mm Hg elevation from the baseline IOP in 61 eyes (11.3%). Overall, the incidence rate of IOP elevation after DEX treatment was 12.6% (68 eyes). Among the 68 eyes (12.6%) with elevated IOP, 60 (11.1%) required treatment: 59 (10.9%) required IOP-lowering medication and 1 (0.2%) ultimately required surgical interventions.Conclusions The incidence of adverse IOP elevation requiring the prolonged use of IOP-lowering medication and surgical intervention after DEX implantation was significantly lower than the incidence reported in previous Western population-based studies. Intravitreal DEX injection may therefore be an effective and relatively safe treatment modality for ME in Asian patients.