May not be necessary. Cysts of the pars plana area of the retina generally do not require treatment. Macular cysts and holes need to be evaluated and treated by a retinal surgeon. A victrectomy and tissue glue may be necessary. This can be major surgery. Cystoid macular edema is a swelling of the macula that may occur after trauma or surgery, especially cataract surgery. It is usually treated with meds or surgery.