The value of ultrasound biomicroscopy in diagnosis of primary iris and ciliary cysts in patients with glaucoma

Objective To evaluate the value of ultrasound biomicroscopy(UBM) in diagnosis of primary iris and ciliary cysts in patients with glaucoma.Methods One thousand three hundreds cases(1520 eyes) with glaucoma undertook UBM check.Results Among this series of 1300 cases(1520 eyes),60 cases(70 eyes) were found with primary iris and ciliary cysts,the occurrence rate was 4.61%.Among them,37 cases(43 eyes) of single cysts were detected,the occurrence rate was 61.43%;23 cases(27 eyes) of multiple cysts were detected,the occurrence rate was 38.57%.The shape of iris and ciliary cysts was different.The diameter of the biggest cyst was 3.99 mm.The diameter of the smallest cyst was 0.21 mm.One hundred and eight cysts were detected in the 70 eyes.Among them,48 cysts located in the temporal,the rate was 44.44%;42 cysts located in the inferior,the rate was 38.89%;11 cysts located in the nasal,the rate was 10.19 %;7 cysts located in the superior,the rate was 6.48 %.Conclusion UBM has some kind of instruction and utility in the classifying the glaucoma in clinic as a new objective method.