Intacs实施步骤 眼内点入麻药，保持眼睛睁开状态防止眨眼 步骤1：在角膜表面做一个小切口                         步骤2：角膜环放置前的准备 确定植入角膜环的轴度，放置centering guide在眼表面。在一段时间内，于角膜层间轻柔的分离一个狭窄的环形区域，以便于角膜环的放置。 步骤3：轻柔放置角膜环 放置完第二个角膜环后，缝合角膜的小切口。 步骤4：整个过程结束     角膜环植入术能够重塑并增强角膜，去除由圆锥角膜引起的部分或所有的不规则形态，以便能够改善视力。 术后观察是必须的，用于监测恢复的进程和评估手术对视觉的影响，为了提供一个更好的视觉效果，即使对于一个成功的手术，眼睛和角膜接触镜可能也是需要的。

The Procedure for intacs  Anesthetic drops are used to numb the eye, which is held open throughout the procedure to prevent blinking. Step 1: A single, small incision is made in the surface of the cornea. Step 2: The eye is prepared for Intacs placement. To stabilize your eye and ensure proper alignment of the Intacs inserts, the centering guide is placed on the surface of your eye. During this time, inner layers of the cornea are gently separated in a narrow circular area to allow for Intacs placement. Step 3: The Intacs inserts are gently placed. After the second Intacs insert is placed, the small opening in the cornea is closed. Step 4: The procedure is completed. The placement of Intacs inserts remodel and reinforce your cornea, eliminating some or all of the irregularities caused by keratoconus in order to provide you with improved vision. Follow-up visits will be required to monitor the healing process and evaluate the visual benefits of the procedure. Even after a successful procedure, glasses or contacts still may be required to provide you with good vision.