Methods: Using CCD camera to monitor surgical process and build a automatic feedback control system for judging the sudden change of color or brightness around laser hole.

方法：提出采用面阵CCD实时监视手术过程，并建立了孔切穿时色彩突变或亮度突变的识别反馈控制系统。

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The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.

凭着本身强烈的光束，激光可在钻石上钻一个洞，而且可以被很好地控制，因此能用于精密的眼部手术。

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The machining quality of the hole is difficult to control because of the interactional complexity between laser and material.

由于激光与材料相互作用的复杂性，使得小孔加工质量很难控制。

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If needed, antibiotic paste can be inserted into the tooth through a hole made by a more powerful laser and then the tooth can be sealed.

BBC: 'No need for dentist's drill'

This is done by pricking a hole in a compartment's acrylic shell with a laser.

ECONOMIST: Cataracts

The fast-ignition technique is more like a petrol engine: first the fuel is compressed and only then is it ignited by a second laser pulse acting as a spark plug that is fired through a hole in the pellet.

ECONOMIST: Nuclear fusion