Frozen tumors, clearer vision? scientists dig into 20 years of eye records

This study looks back at 20 years of medical records from 25 people who had a freezing treatment (cryotherapy) for retinal hemangioblastoma, a rare eye tumor often linked to von Hippel-Lindau disease. Researchers want to see how well the treatment controlled the tumors and affected vision. No new participants are needed—only existing data is reviewed.