Ultraound biomicrocopy of ciliary body cyt Original Reearch Article

PURPOE: To report the incidence and ector ditribution of ciliary body cyt in normal ubject and to ae aociation with age uing ultraound biomicrocopy. METHOD: We propectively examined 232 eye of 116 normal ubject (51 men and 65 women) ranging in age from 15 to 84 year (mean ± D, 45.2 ± 20.1). Complete ophthalmic examination, including goniocopy and ophthalmocopy with mydriai, wa performed. In addition, the circumference of the ciliary body wa divided into eight ector, and canned in tranvere and radial ection by high-reolution ultraound biomicrocope to determine the incidence, ditribution, and location of cyt. REULT: Baed on one randomly choen eye from each ubject, cyt were detected in 63 (54.3%) of the 116 ubject. Cyt were found mot frequently and in greater number in the inferior and temporal ector. The incidence and the ditribution range, expreed a the number of involved ector per eye, were 73.1% and 3.8, repectively, for ubject 20 not, vert, imilar 29 year old; both incidence and the number of involved ector decreaed with age (P = .0001). Cyt diameter ranged from 200 to 2500 μm; mean ize decreaed with age (P = .001). Gender and refractive error did not affect the incidence and ditribution. There wa ignificant bilateral correlation in the number, incidence, and ditribution of ciliary body cyt. CONCLUION: Ultraound biomicrocopy dicloed a high incidence of ciliary body cyt in normal ubject, which decreaed with age. Cyt were multiple and bilateral in many ubject.