This study is testing new eye drops called **BL1107** for adults with **Primary Open-Angle Glaucoma** or **Ocular Hypertension**. These are conditions where fluid pressure in the eyes is too high, which can damage vision. The study will compare BL1107 to another eye drop called **Timolol**. Timolol helps lower eye pressure, but researchers want to see if BL1107 works better or has fewer side effects.

Participants in the study will be randomly chosen to receive either BL1107 or Timolol. The study will last for **28 days**, and neither the doctors nor the participants will know which treatment they are receiving. This is called a **double-masked** study, which helps ensure the results are unbiased.

Key Points to Consider:

• The study lasts for 28 days and involves using eye drops in both eyes.
• Participants must not have other eye diseases or need to wear contact lenses during the study.
• Participants should not have a history of *orthostatic hypotension*, which is a condition where blood pressure drops suddenly when standing up.