@silverwizard Could be worse. Specialists could have ignored a brain tumor for five years, while it was growing bigger and more impactful the entire time. Healthcare systems everywhere are mostly trash with totally fucked priorities — swear to follow the Hippocratic Oath my ass, bunch of bastards.
Sorry about your vision issue — I had a similar issue before tumour treatment (which required supplementation of thyroid hormone — which immediately affects eyesight, focus, depth of field, nerve strain). Suggest not only getting the original consultation but also a full panel hormone test including all endocrine systems.
Neurology and endocrinology are intrinsically linked systems — eyesight is transited by the optic chiasm nerve bundles — when those get compressed the patient can slowly go blind. The visual sense is crucial to homeostasis with the rest of the CNS and somatosensory cortex — if nothing else it often acts as a lightning rod pointing to deeper more complex causes.
Stay strong, resolute, there is nothing to fear — all of this is outside of our personal control.