First FDA Approval

Coleman and Lizzie developed the Sonocare CST-100 Therapeutic Ultrasound System which was designed to treat glaucoma. It was the first focused ultrasound system to earn FDA approval. However, it was ultimately outdated by laser surgery.


Silverman R. Focused ultrasound in ophthalmology. Clin Ophthalmol. 2016; 10: 1865–1875.