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Article
October 1981

Bipolar Bimanual Diathermy-Reply

Author Affiliations

Jean-Marie Parel, ING, ETS-G Durham, NC

Arch Ophthalmol. 1981;99(10):1868. doi:10.1001/archopht.1981.03930020742026
Abstract

In Reply.  —First, from a theoretical viewpoint, we maintain that it is possible that noninsulated probes used in the bimanual technique pass undesired and possibly dangerous currents through the eye. The eye is, unfortunately, not the theoretical homogenous body where electrical energy is decreased to the third power of the distance between instruments. Michels1 recommended higher currents for work in the retinal periphery "so that the diathermy current jumps the small gap between the instrument tips and the underlying retinal tissue." Potential danger can easily be imagined if the energy is inadvertently kept on while the instruments are retracted and currents pass across the eye near the lens. For this reason, Charles admits "that insulation of one of the probes could be helpful."Second, from a clinical standpoint, one always prefers the method with which one is most experienced. We like the unipurpose probe, while Charles prefers the bimanual

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