WEI-LI CHENCHUNG-MAY YANGFUNG-RONG HUHung P.-T.MUH-SHY CHEN2020-10-222020-10-2220000929-6441https://www.scopus.com/inward/record.uri?eid=2-s2.0-0034533715&partnerID=40&md5=aa0df556a5ff8405056ba5ea23a4a4a5https://scholars.lib.ntu.edu.tw/handle/123456789/517861The recent development of high-frequency ultrasound biomicroscopy (UBM) has enabled observation of the angle, posterior chamber and ciliary body region of the eye at high resolution in vivo, a feature that is unparalleled by traditional ophthalmic ultrasonographic instruments. This report describes the use of UBM in a case of pseudophakic pupillary block after pars plana vitrectomy and silicone oil injection. UBM is invaluable in the differential diagnosis of the composition of fluid accumulated in the posterior chamber of the eye behind the iris.[SDGs]SDG3silicone oil; adult; article; biomedical technology assessment; biomicroscopy; case report; ciliary body; ciliary disk; comparative study; diagnostic value; differential diagnosis; echography; eye chamber disease; high resolution computer tomography; human; human tissue; iris; male; posterior eye chamber; pseudophakia; surgical technique; treatment outcome; vitrectomy; vitreous diseasejournal article2-s2.0-0034533715