Have left facial and temple pain and right vision loss in one eye opthamologist can find no cause she says my eye is healthy can you help ?

Could be serious.: Was the vision loss sudden? If so, you should consider this an ophthalmological emergency. You could have a problem with the circulation to the eye (retinal artery), or optic nerve. Loss of vision should never be considered normal, unless it is simply a refractive problem requiring corrective lenses. I highly suggest you get another opinion from another opthamologist.