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We present a new endoscopic system that provides two different views simultaneously, one is a wide view (120 degrees) and the other is a zoomed view with image-shift mechanism. A Porro prism (II) is used to shift the zoomed image vertically and horizontally. With this endoscope, surgeons can observe throughout the surgical field without moving or rotating(More)
OBJECTIVE The employment of surgical microscopy in the field of neurosurgery has significantly contributed not only to the advancement of surgical technique, but also the operative outcome as well. This technology has allowed surgeons to meet the demands for increasingly difficult levels of surgery, which usually require a long operative time. However, the(More)
Cathepsin B in the bovine ciliary body and iris was studied biochemically using alpha-N-benzoyl-D,L-arginine-2-naphthylamide as substrate. The enzyme was purified to 210-fold from the autolyzed extract. The partially purified enzyme had a pH optimum at 6.0 and a molecular weight of 27,000. The apparent Km value for the substrate was 1.6 mM. The enzyme was(More)
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