Final answer:
Open-angle glaucoma and closed-angle glaucoma differ in the angle at which the fluid drains from the eye, leading to differences in intraocular pressure.
Step-by-step explanation:
Glaucoma is a condition characterized by a buildup of intraocular pressure in the eye. There are two main types of glaucoma: open-angle glaucoma and closed-angle glaucoma. The angular difference between these two types refers to the angle between the iris and the cornea.
In open-angle glaucoma, the angle between the iris and the cornea remains open, but there is a blockage in the drainage system, leading to increased intraocular pressure. In closed-angle glaucoma, the angle between the iris and the cornea becomes narrow or completely closed, resulting in a sudden increase in intraocular pressure.
Therefore, the main difference between open and closed glaucoma is the angle at which the fluid drains from the eye. It is important to note that both types of glaucoma can lead to vision loss if not treated properly.