What are the types of glaucoma in adults?

There are three main varieties of glaucoma in adults which concern us:-
• Chronic Glaucoma or Open-angle Glaucoma
• Acute Glaucoma or Closed-angle Glaucoma
• Secondary glaucoma, which develops due to systemic diseases like prolonged diabetes, complicated high blood pressure, thyroid disease, bleeding disorders etc. It may also occur as a complication of associated eye disorders such as vascular blocks, bleeding inside the eye, uveitis, swollen lens, blunt injury to the eye, etc.