Hi MetaSRA Team,
To motivate my first suggestion, try out:
Retinopathy, Diabetic
Retinopathy
retinopathy
I think it would be cool on "failed" searches (because they're not ontology terms) to auto-create a query-link to the Ontology Lookup, with only your 5 ontologies selected, which opens in a different tab.
Thanks for the demo!
John