Surgery – Instruments – Light application
Reexamination Certificate
2011-04-26
2011-04-26
Farah, Ahmed M (Department: 3769)
Surgery
Instruments
Light application
C606S004000, C606S010000, C606S012000, C128S898000
Reexamination Certificate
active
07931644
ABSTRACT:
Systems and methods for removing an epithelial layer disposed over a stromal layer in a cornea irradiate a region of the epithelial layer with a pulsed beam of ablative radiation. The ablative radiation is scanned to vary the location of the beam within the region in accordance with a pulse sequence. The pulse sequence is arranged to enhance optical feedback based on a tissue fluorescence of the epithelial layer. The penetration of the epithelial layer is detected in response to the optical feedback. The use of scanning with the pulse sequence arranged to enhance optical feedback allows large areas of the epithelium to be ablated such that an operator can detect penetration of the epithelial layer.
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Arnoldussen Mark E.
Logan Benjamin A.
Wong Jonathan
AMO Development LLC.
Farah Ahmed M
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