对大多数人来说,用手术矫正视力的想法在几年前还是不可想象的。但是今天因为有了激光刀、专用材料和新技术,显微手术可以提高有缺陷的视力。对许多人来说,这就意味着不必再像以前那样光顾眼镜店了,至少不会经常去了。外科医生切断患者的晶体,代之以人工晶状体。 据一位利用计算机控制激光来进行视力矫正手术的医生说,角膜在垂直方向的曲率略大于水平方向的曲率是理想的散光状态。对 For most people, the idea of ​​surgically correcting vision was unthinkable just a few years ago. But today, with laser knives, specialty materials, and new technologies, microsurgery can improve a flawed vision. For many, that means eliminating the need to visit the optical shops as before, at least not often. The surgeon cuts off the patient’s crystal, replacing it with an intraocular lens. According to a doctor using a computer-controlled laser for vision correction surgery, the curvature of the cornea in the vertical direction, which is slightly greater than the horizontal, is ideal for astigmatism. Correct