The results suggest that LT is as a significant factor as LPon the final dimensions of the anterior chamber and angle.

The results suggest that SLT induces prominent increases in CBT and IT returning to baseline thickness in a month, which may be caused by inflammation, vascular engorgement, or mechanical muscular contraction.

A AB BS ST TR RA AC CT T O Ob bj je ec ct ti iv ve e: : To investigate the deterministic values of angle recess area (ARA), angle opening distances at the locations 250 µm (AOD 250 ) and 500 µm (AOD 500 ) anterior to the scleral spur and trabecular-iris angle (TIA) in patients with open angle undergoing cataract surgery. M Ma at te er ri ia al l a an nd d M Me et th ho od ds s: : Thirty-three eyes of 33 patients with open angle undergoing cataract surgery were enrolled in this study. Ultrasound biomicroscopy (UBM) examination was performed preoperatively and 1 month postoperatively under a standard protocol. At each examination, radial sections of the angle at four quadrants were obtained. The images were analyzed using UBM Pro 2000 software for AOD and ARA semiautomatically, and for TIA manually. R Re es su ul lt ts s: : The postoperative increases in the ARA, TIA, AOD 250 and AOD 500 were statistically significant at four quadrants (p<0.0001). The average increase in the ARA was 0.064±0.037 mm² (44%), in the AOD 250 was 0.056±0.02 mm (70%), in the AOD 500 was 0.074±0.03 mm (56%) and in the TIA was 12.3±4.8º (52%). We determined statistically significant correlations between changes in the ARA with AOD 250 (r=0.54, p=0.001) and AOD 500 (r=0.74, p=0.0001). The lowest extraction value was AOD 250 and the highest extraction value was AOD 500 in three quadrants. Differently, the highest extraction value was determined as ARA at the nasal quadrant. C Co on nc cl lu us si io on n: : Our study showed that AOD 500 is as valuable as ARA in patients with open angle in the quantitative evaluation of the angle. This may not be the case in closed or occludable angles. AOD can be used reliably for the evaluation of the angle by the observers having UBM models without image analysis software.K Ke ey y W Wo or rd ds s: : Ultrasonography; anterior eye segment Ö ÖZ ZE ET T A Am ma aç ç: : Katarakt cerrahisi uygulanacak açık açılı hastalarda, açı açıklık alanı (AAA), skleral mahmuzun 250 µm (AAM 250 ) ve 500 µm (AAM 500 ) önündeki lokalizasyonlarda açı açılım mesafesi (AAM), ve trabekülum-iris açısının (TİA) belirleyicilik değerlerini araştırmak. G Ge er re eç ç v ve e Y Yö ön nt te em ml le er r: : Bu çalışmada katarakt ameliyatı olacak açık açılı 33 hastanın 33 gözü çalışmaya dahil edilmiştir. Ameliyat öncesinde ve ameliyattan 1 ay sonra standart bir protokol halinde ultrason biyomikroskopisi (UBM) yapılmıştır. Her muayenede, 4 kadranda açının radial kesitleri elde edilmiştir. Görüntülerde AAM ve AAA, UBM Pro2000 yazılımı ile yarı-otomatik olarak, TİA ise manüel olarak analiz edilmişlerdir. B Bu ul lg gu ul la ar r: : AAA, TİA, AAM 250 ve AAM 500 değerlerindeki ameliyat sonrası artışlar 4 kadranda istatistiksel olarak anlamlıdır. (p<0,0001). AAA'da ortalama artış miktarı 0,064±0,037 mm² (%44), AAM 250 'de 0,056±0,02 mm (%70), AAM 500 'de 0,074±0,03 mm (%56) ve TİA'da 12,3±4,8º (%52)'dir. AAA ile AAM 250 (r=0,54, p=0,001) ve AAM 500 'deki değişiklikler (r=0,74, p=0,0001) arasında istatistiksel olarak önemli korelasyonlar sap...

Amaç: Katarakt ekstraksiyonu sonrasi on segment yapilarinda oluçan konfigürasyon degiçikiikierinin Ultrason Biyomikroskopi (UBM) yöntemi ile kantitatif analizi. Cereç ve Yöntem; Senil ya da presenil katarakt nedeniyle ameliyat olacak 33 hastanin (21 erkek, 12 kadin, ortalama yac 69.0+8,3 yil) 33 gözü prospektif olarak incelendi. Her hastaya ameliyartan önce ve 1 ay sonrasmda UBM uygulandi. Her UBM muayenesinde ön kamaranin aksiyel görüntüleri ve 4 kadranda açinin radial kesit görüntüleri elde edildi. Ölcümler, cihazin yaziliminda bulunan öicekler ve UBM Pro20C)0® yazilimi kullanilarak gerçekieçtirildi. Sonuçlan Katarakt ameliyatindan sonra, ön kamara derinligi ve açi parametrelerinde istatistiksel olarak anlamli bir arti^ saptandi (p=O,OOI). Postoperatif dönemde, preoperatif döneme göre ön kamara derinliginde 1,3 kat, açi sonlanmasi alam'nda 1,4 kat, açi açikligi mesafesi 25O'de 1,7 kat ve açi açikligi mesafesi 50O'de 1,5 kat arti § tesbit edildi. Ön kamara açisinin lineer regresyon analizinde postoperatif dönemde 4 kadranda da ivmede azalma, y kesijim degerinde istatistiksel olarak anlamli düzeyde arti? saptandi (p=0,001). Tarti^ma: UBM ön segment yapilari hakkinda hem niteliksel, hem de niceliksel cok degerll bilgiler vermektedir. UBM'nin; katarakti olup kapanabilir/dar açilari oían ve sagaltim amaciyla katarakt ameliyati karan verilmiç dan hastalari degerlendirmede yararli olabilecegini dü^ünmekteyiz. (Turk J Ophthalmol 2011: 41: 200-6) Anahtar Kelimeler: Katarakt ameliyati, ön kamara açisi, ön kamara açi kantitatif analizi, ultrason biyomikroskopi Summary Purpose: To quantify the configuration changes in anterior segment structures after cataract extraction using ultrasound biomicroscopy (UBM). Material and MetKod: 33 eyes of 33 patients (21 male, 12 female; mean age: 69.0±8.3 years) with senile or presenile cataracts undergoing cataract surgery were prospectively studied. UBM was performed for each patient before and 1 month after surgery. At each UBM examination, axial images of the anterior chamber and radiai sections of the angle in four quadrants were obtained. The measurements were performed by using the calipers Included in the equipment software and UBM Pro2000® software. Results: After cataract surgery, we determined statistically significant increases in anterior chamber depth and angle parameters (p=0.OOI). We found that the postoperative increases in anterior chamber depth, angle recess area, angle opening distance 250 and angle opening distance 500 were 1.3, 1.4, 1.7 and 1.5 times, respectively, when compared with the preoperative levels. Decreases in acceleration and increases in y-intercept were determined in 4 quadrants postoperatively by of linear regression analysis of anterior chamber angle and these were also statistically significant (p=O.OOI). Discussion: UBM gives both qualitative and quantitative valuable information about anterior segment structures. We think that UBM may be a useful tool fbr evaluation of pjatients with cataract and ocdudable and/or narrow angles undergoing catarac...

We aimed to present a novel case of sectoral ciliary body agenesis and complicated cataract as an embryogenic defect of eye development diagnosed by ultrasound biomicroscopy. A 20-year-old male patient presented with a complaint of visual impairment in his left eye since childhood. Slit-lamp examination of the left eye revealed pigment precipitation and focal lens opacities extending from the temporal quadrant through the posterior lens capsule, blocking the central optical axis. On ultrasound biomicroscopy examination, there was a hyperechoic reflection belonging to the rudimentary ciliary body structures between 2-5 o’clock in the temporal quadrant. The zonules could not be visualized in the same location. At all other quadrants of the anterior chamber angle, the ciliary body and zonules were normal. This is a very rare case of sectoral ciliary body agenesis complicated by cataract. Ultrasound biomicroscopy may be useful for detecting rare congenital anomalies of the anterior segment, anterior chamber angle, and ciliary body.