Severe Eye Pain Both Eyes

I had chicken pox as an adult, and now have shingles that affects my face and eyes.  This TN episode is different than in past years.  It normally affects the left side of my face.  About halfway through Acyclovir (1000 mg/day - standard is 800/day according to my opthamologist) I started having both eyes hurt.    It's either both eyes at once, or it moves from one to another - also intermittently in either cheek, or around the eyes.  Acyclovir only gave me headaches and pain all over my scalp.  Neurontin didn't help very much (I could only handle 600 mg/day).  I just started Trileptal yesterday so it remains to be seen if I can go to 1200 mg/day.  Currently aiming for 600.  Does anyone else have burning, stabbing throbbing pain in both eyes?  This comes on from stress.  I am also very sensitive to light (I'm typing with sunglasses on).  I had a stressful event, the day of the event all went very well, so my pain went away, then it came back that night.  Maybe I need to just go on a vacation!  The doctor gave me eye drops for the pain (Pred Forte) but they don' help.  The only thing that helps a little is a very cold washcloth on my eyes.  Anyone have any ideas on how to stop this horrible eye pain?  I haven't left the house for 9 days, I can't take the light.  Thanks for your help.  I got more information from this site than from my doctors!