Neuroscience and bioengineering converge in multiple breakthroughs enhancing diagnosis and treatment of neurological disorders. A novel soft neural interface with tapered micropump enables fully wireless, precise drug delivery, advancing neuroprosthetics. A novel iPad-based eye test offers scalable, precise screening for early Parkinson's disease diagnosis. Deep brain stimulation optimization advances with real-time local field potential analysis to predict effective electrode contacts. These innovations promise more accessible, effective interventions for disorders like Parkinson's and expand neuromodulatory capabilities in clinical care.