초록 ▼

A device for use in laser ophthalmic surgery includes a laser system, a disposable contact lens and an adjustable retainer ring for mounting the contact lens on the laser system. In order to properly align the disposable contact lens to the laser system, reference marks on the contact lens are broug

A device for use in laser ophthalmic surgery includes a laser system, a disposable contact lens and an adjustable retainer ring for mounting the contact lens on the laser system. In order to properly align the disposable contact lens to the laser system, reference marks on the contact lens are brought into coincidence with predetermined focal points along the laser beam paths. To this end, the laser system successively directs a laser beam along at least three predetermined paths to respective predetermined focal points, and the contact lens is positioned across these predetermined paths. Along each predetermined path, the laser beam is activated to establish a series of laser marks on the contact lens. If the laser marks, predetermined focal points and reference marks are all coincident, then the contact lens is properly aligned with the laser system. If there is any displacement between any laser mark and reference mark, however, the retainer ring is adjusted to align all reference marks with all predetermined focal points to align the lens to the laser system.

대표청구항 ▼

1. A device for use in ophthalmic surgery, which comprises:a laser system for generating a laser beam from an origination point, along at least three predetermined paths to at least three respective predetermined focal points; a contact lens having a first surface and a second surface and a peripher

1. A device for use in ophthalmic surgery, which comprises:a laser system for generating a laser beam from an origination point, along at least three predetermined paths to at least three respective predetermined focal points; a contact lens having a first surface and a second surface and a periphery, said contact lens having at least three reference marks placed on said first surface of said contact lens, said contact lens being positioned across said predetermined paths; and a means for adjusting said contact lens to coincide said plurality of predetermined focal points with said plurality of reference marks.