Incidence, Risk Factors, Treatment, and Outcome of Ocular Hypertension following Intravitreal Steroid Injections: A Comparative Study.

To compare the incidence, risk factors, treatment, and outcomes associated with intravitreal triamcinolone-acetonide (TA) and dexamethasone-implant (Dex)-induced ocular hypertension (OHT). This retrospective study reviewed 1,549 TA and Dex administrations in 1,075 eyes of 897 patients. Intraocular pressure (IOP) values were monitored for a period of 6 months following intravitreal injection(s) and patients were categorized as steroid-responders (SR): IOP≥21 mm Hg, and steroid non-responders (NR): IOP≤20 mm Hg. Glaucoma patients, glaucoma suspects, uveitis, trauma, and less than 1 month of IOP follow-up cases were excluded from the study. The incidence of IOP rise, time and magnitude of IOP rise, and its management procedures were studied. Ocular and systemic associations with OHT incidence were investigated. Statistical analysis was performed using SPSS.23 and p < 0.05 was considered significant. Twenty-eight percent of TA and 17% of Dex administered eyes developed OHT. Male subjects and elderly people (greater than 40 years of age) are at higher risk for OHT following steroid treatment. A high percentage of IOP rise was observed on day 1 (41%) for TA-SR, and after 1 month (50%) for Dex-SR. IOP rise was found to be more severe (>30 mm Hg) for TA-SR compared to Dex-SR (p = 0.006). 6% TA-SR required trabeculectomy with medically uncontrollable IOP. Myopia is a risk factor for secondary OHT, whereas diabetes mellitus and hypercholesterolemia are protective of it. Twenty-eight percent of TA and 17% of Dex administrations developed OHT. Early and severe IOP rises were more common in TA than among Dex administrations. Myopia is a risk for Dex-OHT.

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