<s>[INST] I sustained a concussion a mere 4 weeks ago, no apparently iv noticed im Havin blurred vision, one eye seems lighter in shade than the other, and i have dark spots in the white of my eyes. Should i be worried? What can i do to prevent any long lasting effects? Will i ever be fine again? [/INST] Hello, In my opinion, since your symptoms are vision-related and are lasting, you should have a brain MRI done. This to evaluate any small damage (contusion) of the brain or optic nerve. If no problems in the MRI then you should improve with time. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Erion Spaho, Neurologist, Surgical </s>