Treat the eye symptoms immediately to save her vision and then then see a Weg expert for consultation and/or on-going follow-up. The Diverticulitis Foundation list is good place to start to find a doctor with Weg experience.
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I am also a patient of Dr.Monach. It's a haul getting to Boston from Western Mass, but it's worth the trip. I see him every 3 months and my wife and I make a day of it. After the appointment we'll take a ride up to the north shore and grab a bite to eat, or stay in the city and find stuff to do.
He's a great doctor and a heck of a nice guy. I'd gladly drive twice as far if I had to.