This is the view of the right optic disc of a 73 year old woman with a sudden decrease in vision of the right eye. The patient had a history of headache for several months and also complained of joint pains and anorexia. The fundus of the left eye was normal
1. What is the differential diagnosis of this funduscopic picture?
2. What kind of laboratory workup does this patient need?
3. If this patient had an elevated erythrocyte sedimentation rate which diagnostic procedure would you perform next?
4. In patients with temporal arteritis affecting one eye, what percentage of patients will go on to have involvement of the other eye? If there is involvement of the other eye, when does this usually occur?
5. How would you treat temporal arteritis?