To evaluate the safety and IOP lowering efficacy of OTX-TP, a sustained release travoprost drug product, placed in the canaliculus of the eyelid compared to Timolol Maleate Ophthalmic Solution, 0.5% in the treatment of subjects with open angle glaucoma or ocular hypertension. The study is designed to assess clinically meaningful response to treatment and is not powered to measure any efficacy endpoints with statistical significance.