雙軸線外部標記控制縫線人工晶狀體定位精度的臨床研究
發(fā)布時間：2019-06-24 18:24
【摘要】：目的探討雙軸線外部標記技術在睫狀溝縫線固定人工晶狀體植入術中的定位效果。方法無晶狀體眼27例(27眼)接受經(jīng)鞏膜縫線固定人工晶狀體植入術,雙軸線外部標記技術控制兩條子軸線:子軸線1:精確選定等距、對稱的鞏膜穿刺位點,使角膜中心點投影位于鞏膜穿刺位點形成的固定軸線即子軸線1上;子軸線2:精確選定等距、對稱的線襻結合位點,使人工晶狀體光學中心點位于線襻結合位點形成的固定軸線即子軸線2上。術后隨訪6~24個月,平均10.8個月。通過測量人工晶狀體光學中心點偏位度及超聲生物顯微鏡(ultrasound biomicroscope,UBM)全景測量固定位點軸向人工晶狀體傾斜度和與固定位點軸向垂直的軸向人工晶狀體偏轉度判斷人工晶狀體位置精度,同時觀察可能發(fā)生的并發(fā)癥。結果人工晶狀體光學中心點與角膜中心點高度重合者25眼(92.6%),偏離角膜中心點者2眼(7.4%),偏位幅度為(0.23±0.04)mm;UBM全景測量角鞏膜緣2-8位點軸向人工晶狀體傾斜度為(0.20±0.04)°;UBM全景測量與角鞏膜緣2-8位點軸向相垂直的11-5軸向人工晶狀體偏轉度為(0.24±0.03)°;4眼(14.8%)單襻位于位于睫狀溝旁,6眼(22.2%)雙襻位于睫狀溝旁,人工晶狀體光學中心均保持居中;全部病例未發(fā)生人工晶狀體縫線松解、人工晶狀體脫位、角膜失代償?shù)炔l(fā)癥。結論雙軸線外部標記技術具有整體、直觀、便捷的技術特征,具備精確控制縫線人工晶狀體定位的可行性。
[Abstract]:Objective to investigate the localization effect of double axis external labeling technique in ciliary sulcus suture fixation intraocular lens implantation. Methods 27 cases (27 eyes) of aphakic eyes underwent intraocular lens implantation through scleral suture fixation. Two sub-axis lines were controlled by double-axis external labeling technique: sub-axis 1: accurately select isometric, symmetrical scleral puncture site, so that corneal central point projection was located on the fixed axis 1, which was formed by scleral puncture site. Subaxis 2: accurately select the isometric, symmetrical line loop binding site, so that the optical center point of intraocular lens is located on the fixed axis 2, which is formed by the line loop binding site. The follow-up period was 6 脳 24 months, with an average of 10.8 months. The accuracy of intraocular lens position was judged by measuring the deviation of optical center point of intraocular lens and panoramic measurement of axial intraocular lens inclination at fixed site and axial intraocular lens deflection perpendicular to fixed site by ultrasound biomicroscope,UBM panoramic measurement, and the possible complications were observed at the same time. Results the height of the central point of intraocular lens coincided with the central point of cornea in 25 eyes (92.6%) and deviated from the central point of cornea in 2 eyes (7.4%). The deviation amplitude was (0.23 鹵0.004) mm;UBM panoramic measurement. UBM panoramic measurement showed that the deflection of 11 鈮，
本文編號：2505268
[Abstract]:Objective to investigate the localization effect of double axis external labeling technique in ciliary sulcus suture fixation intraocular lens implantation. Methods 27 cases (27 eyes) of aphakic eyes underwent intraocular lens implantation through scleral suture fixation. Two sub-axis lines were controlled by double-axis external labeling technique: sub-axis 1: accurately select isometric, symmetrical scleral puncture site, so that corneal central point projection was located on the fixed axis 1, which was formed by scleral puncture site. Subaxis 2: accurately select the isometric, symmetrical line loop binding site, so that the optical center point of intraocular lens is located on the fixed axis 2, which is formed by the line loop binding site. The follow-up period was 6 脳 24 months, with an average of 10.8 months. The accuracy of intraocular lens position was judged by measuring the deviation of optical center point of intraocular lens and panoramic measurement of axial intraocular lens inclination at fixed site and axial intraocular lens deflection perpendicular to fixed site by ultrasound biomicroscope,UBM panoramic measurement, and the possible complications were observed at the same time. Results the height of the central point of intraocular lens coincided with the central point of cornea in 25 eyes (92.6%) and deviated from the central point of cornea in 2 eyes (7.4%). The deviation amplitude was (0.23 鹵0.004) mm;UBM panoramic measurement. UBM panoramic measurement showed that the deflection of 11 鈮，
本文編號：2505268
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