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METHOD FOR POSTOPERATIVE INTRASTROMAL CORNEAL SEGMENTS CORRECTION

机译：术后颅内角膜矫正的方法

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FIELD: medicine.;SUBSTANCE: invention relates to medicine, specifically to ophthalmology. For position correction of postoperative intrastromal cornea segments, repeated position analysis of segments is performed on digital marking device VerionTM Image Guided System. Further, in operating conditions, focusing on the projection marks in the microscope eyepiece LuxOR LX3 and the graduated corneal circle scale projected onto the corneal image on the microscope monitor, real-time estimation of actual position of segment or segments and compliance of their position with respect to design values. If there is a difference between the actual and calculated position of the segment or segments of more than 5 angular degrees, the position of the segment or segments is corrected by forming an additional intrastromal tunnel in the projection of a previously formed femtosecond laser. Tunnel is programmed at depth of 80 % of the minimum thickness of the cornea in the area of the proposed resection; incision into the tunnel is planned at distance of 20 angular degrees from the edge of the segment at location of 1st and at equal distance from the edges of the corneal segments with arrangement of 2 segments. Focusing on the projection mark in the eyepiece of the microscope corresponding to the axis of the prospective incision, using a marker on the surface of cornea 2 points are applied along the projection mark in 2 and 3 mm from the limb. Femtosecond laser is centered along the axis of the future incision marked by a marker. After the corneal femtorepression is performed, the tunnel is inserted and the segment or segments are positioned according to the preoperative calculation, by moving the segment or segments within the intraastromal tunnel, until the edge of the segment or segments coincides with the projection mark corresponding to the design position of the segment or segments.;EFFECT: method provides precise reposition of intra-stromal corneal segments along a given meridian, reduced corneal astigmatism, improved visual acuity without correction and visual acuity with maximum correction.;1 cl, 2 ex
机译：技术领域本发明涉及医学，尤其涉及眼科。对于术后基质内角膜节段的位置校正，在数字标记设备VerionTM Image Guided System上进行节段的重复位置分析。此外，在操作条件下，着眼于显微镜目镜LuxOR LX3上的投影标记以及将刻度的角膜圆刻度投射到显微镜监视器上的角膜图像上，实时估计一个或多个片段的实际位置以及它们与尊重设计价值。如果一个或多个段的实际位置与计算位置之间的差异大于5个角度，则可以通过在先前形成的飞秒激光器的投影中形成一个额外的基质隧道来校正一个或多个段的位置。在建议的切除区域，将隧道的深度编程为角膜最小厚度的80％;计划在距第1个位置的距离段边缘20度角处，并与角膜段的边缘相等距离处（安排2个段）切入隧道。使用角膜表面的标记，将显微镜的目镜上与预期切口的轴相对应的投影标记聚焦在距肢体2毫米和3毫米的投影标记上。飞秒激光沿着标记所标记的未来切口的轴居中。进行角膜压迫术后，通过术前计算，通过在天文隧道内移动一个或多个分段，直到该分段或多个分段的边缘与对应于效果：该方法可沿给定子午线精确地重新定位基质内角膜节段，减少角膜散光，无需矫正即可提高视敏度，并具有最大矫正视敏度; 1 cl，2 ex

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