| 摘要 |
The control device 13 comprises a case on which the hand 22 of a practitioner may rest as he seeks to position the focal point of a laser beam on a location to be treated surgically. The device comprises a small wheel 20 actuated by the thumb 21 and a ball 23 actuated by the index finger 24, the small wheel and the ball moving the focal point respectively along a first coordinate Z and along second and third coordinates X, Y. A push-button 25 actuated by the second finger 26 controls the laser firing. The device finds its application in ophthalmology. <IMAGE>
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