Husband diagnosed with eschemic optic neuropathy. BP in GP s office w/ mercury monitor 142/86. Doc checked our at-home monitor against his readings. He recommended lifestyle changes w/out drugs (which he has made for 2 weeks). Husband takes BP at home everyday, remaining steady close to previous reading noted. Yesterday at new opthomologist office, scarey visit, his BP shot up to 168/85. They insisted he get on meds. Today he took his 1st Lisinopril 10 mg. We have wonderful internist who will be watching & controlling treatment. But we are wondering how long before he notices changes in BP w/ at home monitor? Also, since BP varies when at stressful speciality visit, what reading will determine when his BP is good? Thank you-