Fakoemülsifikasyon ve Katlanabilir Göz içi Lensi İmplantasyonu Sonrası Ön Segment Konfigürasyon Değişikliklerinin Ultrason Biyomikroskopi ile Değerlendirilmesi

Purpose: To quantify the configuration changes in anterior segment structures after cataract extraction using ultrasound biomicroscopy\ud(UBM).\udMaterial and Method: 33 eyes of 33 patients (21 male, 12 female; mean age: 69.0±8.3 years) with senile or presenile\udcataracts undergoing cataract surgery were prospectively studied. UBM was performed for each patient before and 1\udmonth after surgery. At each UBM examination, axial images of the anterior chamber and radial sections of the angle in\udfour quadrants were obtained. The measurements were performed by using the calipers included in the equipment\udsoftware and UBM Pro2000® software.\udResults: After cataract surgery, we determined statistically significant increases in anterior chamber depth and angle\udparameters (p=0.001). We found that the postoperative increases in anterior chamber depth, angle recess area, angle\udopening distance 250 and angle opening distance 500 were 1.3, 1.4, 1.7 and 1.5 times, respectively, when compared\udwith the preoperative levels. Decreases in acceleration and increases in y-intercept were determined in 4 quadrants\udpostoperatively by of linear regression analysis of anterior chamber angle and these were also statistically significant\ud(p=0.001).\udDiscussion: UBM gives both qualitative and quantitative valuable information about anterior segment structures. We think\udthat UBM may be a useful tool for evaluation of patients with cataract and occludable and/or narrow angles undergoing cataract\udsurgery for therapeutic purpose. (Turk J Ophthalmol 2011; 41: 200-6