I would definatley go to the eye doctor as soon as possible. Run -don't walk !!!!!!! I dont want to scare you but Glaucoma can show so signs or symptoms, but damage can be done.
People who do show signs of Glaucoma, state peripheral vision loss, tearing of that eye,cloudiness of the eye,physical difference noted. Many show absolutely so signs.
As for SWS, did you ever have an MRI with contrast done? That is the test of choice at present to rule out SWS. You can have Glaucoma but not SWS.
Many adults have found out in adylthood that they indeed have SWS. They may have a mild case that was not noted or ruled out in childhood. Many with SWS have seizures, cognitive issues as infants or children but that is not always the case. Some do not have seizures and some adults began having seizures as adults. The seizures can also be very mild and not "noticed".
Have you ever done any laser treatments?
I would rule out any possibility of SWS and get to the eye doctor...