Anterior capsulotomy with a pulsed-electron avalanche knife.

Journal of Cataract and Refractive Surgery
Daniel V PalankerDavid F Chang

Abstract

To evaluate a new pulsed-electron avalanche knife design for creating a continuous curvilinear capsulotomy (CCC) and compare the CCC with a mechanical capsulorhexis. Department of Ophthalmology, Stanford University, Stanford, California, USA. In this study, CCCs were created in freshly enucleated bovine eyes and in rabbit eyes in vivo. The cutting velocity was adjusted by controlling the burst repetition rate, voltage amplitude, and burst duration. Tissue samples were fixed and processed for histology and scanning electron microscopy (SEM) immediately after surgery. The study included 50 bovine eyes and 10 rabbit eyes. By adjusting the electrosurgical waveforms, gas-bubble formation was minimized to permit good surgical visualization. The optimum voltage level was determined to be +/-410 V with a burst duration of 20 mus. Burst repetition rate, continuously adjustable from 20 to 200 Hz with footpedal control, allowed the surgeon to vary linear cutting velocity up to 2.0 mm/s. Histology and SEM showed that the pulsed-electron avalanche knife produced sharp-edged capsule cutting without radial nicks or tears. The probe of the pulsed-electron avalanche knife duplicated the surgical feel of a 25-gauge cystotome and created a histol...Continue Reading

References

May 15, 1991·American Journal of Ophthalmology·E I AssiaE S Lim
Jan 1, 1990·Journal of Cataract and Refractive Surgery·H V Gimbel, T Neuhann
Jun 1, 1987·Klinische Monatsblätter für Augenheilkunde·T Neuhann
Nov 1, 1994·Journal of Cataract and Refractive Surgery·M E WilsonD J Apple
Mar 1, 1993·Journal of Cataract and Refractive Surgery·S KragL Corydon
Jan 1, 1997·Journal of Cataract and Refractive Surgery·S KragL Corydon
Sep 22, 2001·Journal of Cataract and Refractive Surgery·M K AasuriA B Majji
Apr 17, 2002·Journal of Cataract and Refractive Surgery·Daljit Singh
Oct 6, 2005·Retina·Siegfried G PriglingerAnselm Kampik
Oct 13, 2005·Archives of Ophthalmology·Siegfried G PriglingerAnselm Kampik
May 16, 2006·Journal of Cataract and Refractive Surgery·Ian J Dooley, Paul D O'Brien
Jul 22, 2006·Journal of Cataract and Refractive Surgery·Siegfried G PriglingerAnselm Kampik
Dec 27, 2006·Journal of Cataract and Refractive Surgery·Stephen D McLeodAlbert Ting
Dec 27, 2006·Journal of Cataract and Refractive Surgery·Ivan L OssmaStephen D McLeod
Jan 19, 2007·The British Journal of Ophthalmology·Siegfried G PriglingerAnselm Kampik
Feb 14, 2008·IEEE Transactions on Bio-medical Engineering·Daniel V PalankerPhilip Huie

❮ Previous
Next ❯

Citations

Nov 19, 2010·Science Translational Medicine·Daniel V PalankerWilliam Culbertson
Apr 29, 2014·Journal of Cataract and Refractive Surgery·Matthew A Powers, Malik Y Kahook
Jun 28, 2011·Journal of Cataract and Refractive Surgery·Neil J FriedmanWilliam W Culbertson
Jun 13, 2015·Case Reports in Ophthalmological Medicine·Igor KnezovićHrvoje Raguž
Mar 23, 2019·Indian Journal of Ophthalmology·Bhavana SharmaRasik B Vajpayee
Oct 30, 2010·Journal of Cataract and Refractive Surgery·Liliana WernerNick Mamalis

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cell Atlas of the Human Eye

Constructing a cell atlas of the human eye will require transcriptomic and histologic analysis over the lifespan. This understanding will aid in the study of development and disease. Find the latest research pertaining to the Cell Atlas of the Human Eye here.