Method of radial keratotomy employing a vibrating cutting blade

Details Method of radial keratotomy employing a vibrating cutting blade Method of radial keratotomy employing a vibrating cutting blade

1993-09-10

1995-04-11

Pellegrino, Stephen

Surgery

Instruments

Corneal cutter or guide for corneal cutter

606169, A61B 1732

Patent

active

054053552

ABSTRACT:
Radial keratotomies can be performed by incising centrifugally. A vibrating diamond front cutting blade with a reverse cutting edge incises centrifugally to form a squared-off incision at the optical zone. The incision can be retraced if an enhancement is necessary with the vibrating blade without tearing the collagen or resulting in blade setting variability or variability due to corneal compression.

REFERENCES:
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patent: 4619259 (1986-10-01), Graybill et al.
patent: 5167725 (1992-12-01), Clark et al.
patent: 5201747 (1993-04-01), Mastel
patent: 5222967 (1993-06-01), Casebeer et al.
patent: 5263957 (1993-11-01), Davison
Melles, G. R. and Binder, P. S. "Effects of Radial Keratotomy Incision Direction on Wound Depth", Refract Corneal Surg, 6:394, 1990.
Casebeer, J. C. and Shapiro, D. R. "Blade designed for improved safety and accuracy in radial keratotomy", J Cataract Refract Surg, 19:314, 1993.
Updegraff, S. A., McDonald, M. B. and Benerman, R., "Freeze Fracture Analysis of American, Russian and DuoTrak Incisions", ARVO Abstract, Invest Opthalmol Vis Sci 34 (Suppl): 801, 1993.
Berkeley, R. G., Sanders, D. R. and Piccolo, M. G., "Effect of Incision Direction on Radial Keratotomy Outcome", J Cataract Refract Surg, 17:819-824, 1991.

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