In Closed Angle Glaucoma, the colored part of your eye has scarred close part of the drain from being in contact with it for a long time. To place into context of our analogy, it is like a drain plug stuck into part of the drain. If there is a mismatch of fluid being pumped into your eye and the amount of fluid exiting the drain (called the angle), fluid will accumulate and cause the pressure in your eye to go up. By placing a special mirrored contact lens on your eye, the drain may be visualized.
In Narrow Angle Glaucoma, the entrance to the drain appears to be narrow or covered by the colored part of your eye (the iris). To place into context of our analogy, it is like a drain plug popping in and out of the drain.
In Closed Angle Glaucoma, the colored part of your eye has scarred close part of the drain from being in contact with it for a long time. To place into context of our analogy, it is like a drain plug stuck into part of the drain.
On a microscopic level, the drain may also be filled with debris (open angle glaucoma). If both narrow angle and open angle glaucoma coexist, you have combined mechanism glaucoma.
Treatment of this condition is to take a laser and place a hole directly through the colored part of your eye (the drain plug). This will allow the fluid made by your eye to have access to more of the drain and help to keep the pressure down.