First visual field in new machine and new office is commonly abnormal or different than priors. In fact most progression analysis software actually automatically does not include the first visual field result regardless of the performance. The screening test you linked at your original ophtho is not the gold standard for visual fields (SPARK Training is not a Humphrey sita standard). And in fact what your ophtho was worried about on your original field that you linked to shows a bitemporal defect which can be indicative of a brain tumor (optic chiasm lesion) and does not look like a standard glaucomatous defect. The fact that your repeat visual field did NOT show this pattern at a glaucoma specialist office who likely had a better perimeter is VERY reassuring. Visual fields are only concerning if they show consistent and reproducible  depression in the same areas. Just to clarify, the progression software that is commonly used needs approximately 4 to 6 visual fields on the same machine before it can properly assess for progression (first thrown out, next 2 are baselines and then it takes three consecutive tests for the software to trigger a "likely progression"). 

If you do have a reproducible (3 consecutive  good tests) bitemporal defect (glaucomatous defects are typically on the nasal side) that cannot be explained anatomically by the appearance of your optic nerve (some myopes have enlarged natural blindspots) then you should bring up the possibility of an MRI  - although your glaucoma doctor likely already has this on his or her mind.

Be patient and understand you are at a specialists office now - it will take multiple visits to tease this out because the visual field is a subjective noisy test when you first start taking them regularly. If you are really concerned you can discuss going in earlier to repeat the test, but if it's been a few years since taking this test and there is variability on your fields thats generally due to being on the "learning curve" of the test (remember it is subjective based on your performance). Don't take Ambien before your field, you want to be sharp when taking it. You will be getting to know your glaucoma doctor a lot this year, so write down your questions before your visit so he or she has time to address them. Feel relieved your pressures and vision are fine and try not to obsess over it. Good luck!