Secondary glaucoma is any form of glaucoma in which a rise in intraocular pressure is due to a discernable cause. Often, the cause of secondary glaucoma is treated simultaneously with the rise in intraocular pressure.
Secondary glaucoma can be either open angle (sometimes referred to as "chronic" glaucoma) or closed angle (sometimes referred to as narrow angle or "acute" glaucoma).
Secondary Open Angle Glaucoma can be caused by:
Secondary Angle Closure Glaucoma can be caused by
You may be at an increased risk for some forms of secondary glaucoma if you:
Additional risk factors for secondary glaucoma include:
Secondary angle closure glaucoma has the same symptoms as angle closure glaucoma--including eye pain, halos, and nausea--and should be treated as a medical emergency if symptoms are identified.
Secondary open angle glaucoma often has no discernible symptoms until vision loss begins. If you have any of the risk factors for secondary open angle glaucoma, be sure to have regular vision exams that include glaucoma testing.
Secondary glaucoma treatment varies depending on whether the glaucoma is open angle or angle closure. Because secondary open angle glaucomas are sometimes temporary, treatments are often oriented at controlling the intraocular pressure with eye drops first to allow the clearing of the angle. If necessary, surgical intervention may be used to increase the rate of drainage and reduce intraocular pressure.
If you have eye conditions that may lead to secondary glaucoma, it is important that you have regular vision exams that include glaucoma screening. Find a local ophthalmologist who can help protect your vision.