Femtosecond Cataract Surgery
The initial steps during LCS involve programming the lens, capsulotomy, primary corneal incision, secondary corneal incision and astigmatic keratotomy, if needed. A disposable patient interface is then docked to the patient's eye under topical anaesthesia. Sensors in the delivery system detect the objective's position and applanation force, which is indicated on the screen. After correcting the centration to the limbal landmarks, anterior capsular offset, lens offset, corneal thickness and wound tunnel lengths are selected on a live microscopic OCT image. This is followed by delivery of the laser energy, which can be stopped at any point by releasing the footswitch. The procedure is performed in a sequence of capsulotomy; lens fragmentation; primary and secondary corneal incisions; and arcuate keratotomy.
After the completion of the laser procedure, the patient is shifted to the operating room. The laser-created corneal incisions are opened under strict surgical asepsis. Further steps follow as per conventional phacoemulsification with careful removal of the capsulotomy button and lens fragmentation under viscoelastic cover.
The Procedure (Alcon LenSx)
The initial steps during LCS involve programming the lens, capsulotomy, primary corneal incision, secondary corneal incision and astigmatic keratotomy, if needed. A disposable patient interface is then docked to the patient's eye under topical anaesthesia. Sensors in the delivery system detect the objective's position and applanation force, which is indicated on the screen. After correcting the centration to the limbal landmarks, anterior capsular offset, lens offset, corneal thickness and wound tunnel lengths are selected on a live microscopic OCT image. This is followed by delivery of the laser energy, which can be stopped at any point by releasing the footswitch. The procedure is performed in a sequence of capsulotomy; lens fragmentation; primary and secondary corneal incisions; and arcuate keratotomy.
After the completion of the laser procedure, the patient is shifted to the operating room. The laser-created corneal incisions are opened under strict surgical asepsis. Further steps follow as per conventional phacoemulsification with careful removal of the capsulotomy button and lens fragmentation under viscoelastic cover.