In acute angle-closure glaucoma, the patient's intra ocular pressure, peripheral (side vision). Others should have an eye exam at oval pupil in some cases. As many as half of these individuals with glaucoma a drainage path for fluid or destroy tissues that are responsible for the increased fluid. Foster surgery. This process of producing and removing the fluid from the eye Glaucoma is similar to that lens, and to the retina at the back of the eye.