Which glaucoma type is associated with gradual loss of peripheral vision?

Which glaucoma type is associated with gradual loss of peripheral vision?

• A. Closed-angle glaucoma
• B. Open-angle glaucoma
• C. Diabetic retinopathy
• D. Iritis

Answer: (B)

Open-angle glaucoma is a chronic condition where the drainage angle remains open but outflow through the trabecular meshwork is reduced. This causes gradual optic nerve damage, and the earliest field loss typically starts at the periphery, so people notice narrowing of side vision long before central vision is affected. In contrast, closed-angle glaucoma presents with an acute attack and sudden symptoms, while diabetic retinopathy and iritis are not glaucoma types and have different signs. So the gradual loss of peripheral vision points to open-angle glaucoma.

Open-angle glaucoma is a chronic condition where the drainage angle remains open but outflow through the trabecular meshwork is reduced. This causes gradual optic nerve damage, and the earliest field loss typically starts at the periphery, so people notice narrowing of side vision long before central vision is affected. In contrast, closed-angle glaucoma presents with an acute attack and sudden symptoms, while diabetic retinopathy and iritis are not glaucoma types and have different signs. So the gradual loss of peripheral vision points to open-angle glaucoma.