Surgery – Instruments – Light application
Patent
1997-11-17
1999-07-27
Dvorak, Linda C. M.
Surgery
Instruments
Light application
606 10, 606 18, A61B 1736
Patent
active
059282215
ABSTRACT:
Fluence monitoring apparatus is disclosed for a system for modifying curvature of a cornea by selective laser photoablation of corneal tissue by means of a succession of pulses of laser radiation delivered to the cornea in an overlapping pattern corresponding to a desired pattern of photoablation. The system includes a scanning arrangement for directing the pulses to form the overlapping pattern. The fluence monitoring apparatus includes a beamsplitter located between the scanning arrangement and the cornea for directing a fraction of each of the pulses to a monitor plate. The monitor plate emits fluorescent light on being irradiated by each pulse-fraction. A video camera provides an electronic image of the monitor plate. Processing circuitry periodically records the electronic image, and the periodic image recordings are integrated to form a composite image representative of spatial distribution of laser fluence on the cornea.
REFERENCES:
patent: 4911711 (1990-03-01), Telfair et al.
patent: 5520679 (1996-05-01), Lin
patent: 5599340 (1997-02-01), Simon et al.
patent: 5624437 (1997-04-01), Freeman et al.
patent: 5720894 (1998-02-01), Neev et al.
patent: 5782822 (1998-07-01), Telfair et al.
Austin R. Russel
Sasnett Michael W.
Coherent Inc.
Dvorak Linda C. M.
Yarnell Bryan K
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