Jaw-Chyng L. Lue

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PURPOSE The purpose of the study was to determine the performance of dual pneumatic ultra high-speed 23-gauge cutters operated with variable duty cycle (DC) settings. METHODS Frame-by-frame analysis of high-speed video was used to determine the DC in core, 50-50, and shave modes. Using three cutters at various cycles per minute and aspiration levels, mass(More)
PURPOSE The purpose of this study was to use a novel method to quantify the traction applied to the retina during vitrectomy. METHODS Five 20-gauge electric cutters were used. Fresh porcine eyes were positioned in a specially developed holder and transfixed to the retinal layers with a microwire, and the other end was fixed to the load cell of a strain(More)
BACKGROUND Dual pneumatic systems use two separate air line tubes to open and close the cutter and can achieve high cut rates. The purpose of this study is to evaluate the influence of gauge size, cut rate and aspiration on the flow rate performance of ultra high-speed cutters operated with a commercially available dual pneumatic vitrectomy system. (More)
BACKGROUND AND OBJECTIVE This study evaluates water and porcine vitreous flow rates and duty cycle using the Millennium Vitrectomy Enhancer (MVE) system (Bausch & Lomb, St. Louis, MO). MATERIALS AND METHODS A precision balance measured mass of water or vitreous removed from a vial within a certain time by 20-, 23-, and 25-gauge MVE cutters at 800, 1,000,(More)
AIM To report a novel method to quantify traction applied to the retina using vitreous cutters during pars plana vitrectomy. METHODS Fresh porcine eyes were positioned in a specially developed holder and transfixed to the retinal layers with a wire and the other end fixed to the load cell of a strain gauge. Five separate 20-gauge electrical drive(More)
PURPOSE We hypothesized that reaction times (RTs) for a switch release are faster for hand-controlled than for foot-controlled switches for physiological and anatomical reasons (e.g., nerve conduction speed). The risk of accidental trauma could be reduced if the surgeon reacted quicker and therefore improve the surgical outcome. METHOD We included 47(More)
This paper discusses the removal of the doped polysilicon of a gate transistor by KOH wet chemical etching containing the spacer oxide and nitride that remain. This technique significantly improves the image quality of a two-dimensional (2-D) doping profile of scanning capacitance microscopy (SCM), which more accurately provides the results of the desired(More)
PURPOSE To evaluate intraocular pressure (IOP) changes during experimental vitrectomy and the efficacy of Constellation Vision System's IOP control (IOPc) feature in reestablishing baseline pressure. METHODS Using a pressure transducer in freshly enucleated porcine eyes, a broad range of parameters (baseline pressures, aspiration levels, and cut rates)(More)
OBJECTIVE To seek a simple, safe and effective method for the instant repair of soft-tissue defects after excision of superficial tumor, chronic ulcer and scar constructure as well as injury. METHODS From August 1993 to October 1997, according to the location and size of the lesion, adjacent single or double reverse tongue-shaped skin flaps were designed(More)
A compact integrated system-on-chip (SoC) architecture solution for robust, real-time, and on-site genetic analysis has been proposed. This microsystem solution is noise-tolerable and suitable for analyzing the weak fluorescence patterns from a PCR prepared dual-labeled DNA microchip assay. In the architecture, a preceding differential logarithm stage is(More)