PURPOSE: To report the diagnosis of pars planitis on the basis of ultr
asound biomicroscopy images. METHODS: The Humphrey ultrasound biomicro
scope was used for examination of the right eye of a 17-year-old boy,
referred to our clinic because of blurred vision, The lens showed a po
sterior subcapsular cataract precluding fundus visualization. RESULTS:
Ultrasound biomicroscopy showed a homogeneous mass of medium reflecti
vity over the pars plana, Lensectomy and vitrectomy confirmed the diag
nosis. CONCLUSION: This brief case report points out the utility of ul
trasound biomicroscopy in diagnosing pars planitis in cases of media o
pacities.