Additional Laser-Assisted Cataract Surgery Technical Info:
In September 2012 the Alcon LenSx device was incorporated into the Center for Outpatient Surgery in Whittier. The Alcon femtosecond laser was the first approved in the U.S. for all indications, including primary and secondary incisions, capsulotomy, lens fragmentation, and limbal relaxing incisions. The laser is programmed in about 90 seconds, and the total "Laser-on" firing time is about 45 seconds.
The energy used during cataract procedures is a marker of how "disruptive" the surgery is overall, and is correlated to both the success of the surgery and the amount of time necessary to recover from a procedure.
Marshburn Eye Center has tracked the energy used during procedures and categorized it by patient age and pre-surgical assessment of nuclear density (density of the lens).
In 113 consecutive cases for the largest group of patients aged 65-79 with a pre-surgical grading of 2+ nuclear sclerosis, a very significant reduction in internal phaco energy was realized. The measurement of intraocular ultrasound energy is C.D.E. (Cumulative Dissipated Energy, in KHz).
Non LenSx standard Phacoemulsification C.D.E. average: 8.57
LenSx laser assisted Phacoemulsification C.D.E. average: 3.49
This shows a 60% reduction in ultrasound energy required to break up and remove the lens.
In addition, the "perfect circle" capsulorhexis, better effective lens position, as well as the ability to reduce corneal cylinder adds to the value of the laser-assisted procedure.