| 摘要 |
The invention relates to a laser treatment unit for performing eye surgery, comprising a contact glass ( 23 ), which can be placed onto the eye ( 21 ) and via which a treatment laser beam ( 2 ) passes. A safety mechanism ( 24, 25 ) is provided that displaceably holds the contact glass ( 23 ) in such a manner that the contact glass retreats when the contact glass ( 23 ) is subjected to the action of a force contrary to the direction of incidence of the laser beam. The safety mechanism ( 24, 25 ) enables this retreating when a force is greater than a force limit value (Fmin) and holds the contact glass ( 23 ) in a fixed manner when the force is less than the force limit value.
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