Abstract :Objective: We aimed to test ocular and systemic safety of mirabegron medication in the treatment of overactive bladder in elderly patients. Method: A total of 74 patients (40 male, 34 female) with symptoms of overactive bladder admitted to the urology clinic were included in the study. Patients over 60 years old were included. Patients were followed-up for 3 months. Symptom scores (according to OAB-V8 form), intraocular pressure (IOP) readings of right and left eyes, systolic and diastolic blood pressures of the patients were recorded before and after the treatment. At the end of 3 months, all values were re-evaluated and compared with pre-treatment data. Results: Mean age was 69.48±7.8 years. The symptom score was found to be 18.67 ± 9.87 before the treatment and 9.83 ± 2.71 after 3 months of the treatment (p=0.0001). Right eye mean IOP value was 16.06 ± 2.62 mmHg before treatment and 15.85 ± 2.31 mmHg after treatment (p=0.341). Left eye mean IOP value was 15.96±2.35 mm mmHg before treatment and 15.94±2.21 mm after treatment (p=0.855). Systolic blood pressure measurements were 128.91±11.76 mmHg before treatment and 128.43±11.95 mmHg after the treatment (p=0.110). Diastolic blood pressure measurements were 81.94±9.83 mmHg before the treatment and 81.31±10.14 mmHg after the treatment (p=0.071). Conclusion: Treatment of overactive bladder with mirabegron 50mg/day is well tolerated and safe in elderly patients. Keywords : Overactive bladder, β3-adrenoreceptor agonist, Oculer safety.