How long have you been taking the Plaquenil and Prednison?? Did he say that it was, in fact, glaucoma? Cataracts and Glaucoma are often seen in lupus patients, but the disease is not associated with either of these eye conditions. However, extended use of steroids, such as Prednisone, can cause Glaucoma and almost always produces cataracts. I wish you the very best.
Peace and Blessings