What type of glaucoma is characterized by a slow rise in intraocular pressure?

What type of glaucoma is characterized by a slow rise in intraocular pressure?

• A. Congenital.
• B. Open-angle.
• C. Angle-closure.
• D. Partial-angle.

Answer: (B)

Open-angle glaucoma is characterized by a gradual increase in intraocular pressure, resulting from a slow blockage of the drainage canals in the eye. This type of glaucoma often develops over many years without significant symptoms in the early stages, making it particularly insidious. It is the most common form of glaucoma and is usually identified during routine eye exams when elevated intraocular pressure is detected. In open-angle glaucoma, the angle between the iris and the cornea remains wide open, but the trabecular meshwork—the drainage system for aqueous humor—becomes less efficient over time, leading to increased pressure. This pressure can ultimately damage the optic nerve and lead to vision loss if not properly managed. The other types of glaucoma mentioned are characterized by different mechanisms. Congenital glaucoma occurs due to abnormal eye development, angle-closure glaucoma involves a sudden rise in pressure due to iris blocking the drainage angle, and partial-angle is not a standard classification in glaucoma. Thus, among the options provided, open-angle glaucoma is accurately associated with a slow rise in intraocular pressure.

Open-angle glaucoma is characterized by a gradual increase in intraocular pressure, resulting from a slow blockage of the drainage canals in the eye. This type of glaucoma often develops over many years without significant symptoms in the early stages, making it particularly insidious. It is the most common form of glaucoma and is usually identified during routine eye exams when elevated intraocular pressure is detected.

In open-angle glaucoma, the angle between the iris and the cornea remains wide open, but the trabecular meshwork—the drainage system for aqueous humor—becomes less efficient over time, leading to increased pressure. This pressure can ultimately damage the optic nerve and lead to vision loss if not properly managed.

The other types of glaucoma mentioned are characterized by different mechanisms. Congenital glaucoma occurs due to abnormal eye development, angle-closure glaucoma involves a sudden rise in pressure due to iris blocking the drainage angle, and partial-angle is not a standard classification in glaucoma. Thus, among the options provided, open-angle glaucoma is accurately associated with a slow rise in intraocular pressure.