Can vitrectomy for epiretinal membrane cause glaucoma to worsen. i currently have 25% optic nerve damage.

Low risk: There is some transient increase in pressure during the surgery, but this is usually tolerated well unless you have severe optic nerve damage. Also, epiretinal membrane surgery is fairly short in duration. Your doctor will also monitor your eye pressure while you are on steroid drops after the surgery as they can also make your eye pressure go up. Good luck.