What Are The Side Effects Of Minivelle Patch?

yes my wife started the Minivelle patch Monday a week ago , the day after she put the patch on she started having blurred vision the following day she had lost complete loss of vision in her right eye. She applied the patch to her right side and that's where the loss is , her eye doctor said that this was related to the patch. I was wondering how many people have had the same side affects. This is very serious she could possiably loose complete eye sight in that eye, right now she is on an I V drip at home for the problem. I would appreciate any comments anyone might have on this problem . Again this is a very serious side effect.
Respectfully
Richard Hutto