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Washington, DC—Use of the neutral-pressure "Light Touch" technique for conductive keratoplasty (CK, Refractec) improves predictability, minimizes induced astigmatism, affords faster visual recovery, and provides the opportunity for higher corrections compared with the original approach.
Those benefits appear to be attainable without any loss of refractive stability or any other downsides, reported Henry L. Milne, MD, at the annual meeting of the American Society of Cataract and Refractive Surgery.
"If the excessive pressure was applied uniformly at all treatment spots, undercorrection occurred, while inconsistencies in pressure applied between spots resulted in induced cylinder," Dr. Milne explained.
At that point, the foot pedal is depressed, but the surgeon needs to monitor the corneal response carefully during the 0.6-second delivery period to assure the full 450-µm length of the probe is seated within the cornea the entire time.