LED Light Characteristics for Surgical Shadowless Lamps and Surgical Loupes
نویسندگان
چکیده
BACKGROUND Blue light has more energy than longer wavelength light and can penetrate the eye to reach the retina. When surgeons use magnifying loupes under intensive surgical shadowless lamps for better view of the surgical field, the total luminance is about 200 times brighter than that of typical office lighting. In this study, the effects of 2 types of shadowless lamps were compared. Moreover, the effect of various eyeglasses, which support magnifying loupes, on both the light energy and color rendering was considered. METHODS The light intensity and color rendering were measured on 3 variables: light transmittance, light intensity, and color rendering. RESULTS Under shadowless lamps, the light energy increased with low-magnification loupes and decreased with high-magnification loupes. Filtering eyeglasses reduced the energy, especially in conditions where the low-magnification loupe was used. The best color-rendering index values were obtained with computer eyeglasses under conventional light-emitting diode shadowless lamps and with no glass and with lightly yellow-tinted lenses under less-blue light-emitting diode. CONCLUSIONS Microsurgeons are exposed to strong lighting throughout their career, and proper color rendering must be considered for easier recognition. Light toxicity and loss of color rendering can be reduced with an appropriate combination of shadowless lamps and colored eyeglasses.
منابع مشابه
A Note on a Cheap Substitute for a Shadowless Lamp for Operation Theatres
powerful lamp. The discomforts arising i , neck for electric light close to the back of , an a period of half an hour or longei, e ^ be emergency operation, have to e realizedTTnsoital at When I visited Dr. Seagrave erested in Namkham in March 1935 I be?fyfLarabolic lamp an overhead cluster of lamps with P jn the shades which he had fitted foi 1 some operation theatre. Dr. Seagrave g< gbamo det...
متن کاملCleft Lip and Palate Repair Using a Surgical Microscope
BACKGROUND Cleft lip and palate repair requires a deep and small surgical field and is usually performed by surgeons wearing surgical loupes. Surgeons with loupes can obtain a wider surgical view, although headlights are required for the deepest procedures. Surgical microscopes offer comfort and a clear and magnification-adjustable surgical site that can be shared with the whole team, including...
متن کاملPower quality performance of energy-efficient low-wattage LED lamps
Light-emitting Diode (LED) lamps are more versatile and energy efficient compared with conventional light sources. This paper investigates two main problems related to power quality, namely, the harmonic generation from LED lamps and the effect of voltage sags on LED lamps. Laboratory tests on various LED lamps are conducted and the electrical characteristics of LED lamps are tapped under diffe...
متن کاملEndodontic Therapy: the Operating Microscope
a variety of configurations and magnifications. With the aid of a fiberoptic headlamp system, light can be projected in the line of sight to prevent the creation of shadows in the surgical field and render optimal visualization of the treatment site. However, the magnification of loupes is limited (2.5 to 6.0 ) and their optics are convergent, which creates eye strain and fatigue. In order to a...
متن کاملتأثیر نوع دستگاه تابشی و روش تابش نور بر درجه تبدیل دو نوع کامپوزیت نوری
Background and Aim: Halogen lamp is the commonly used light source for composite photo polymerization. Recently, high power halogen lamps, LED and plasma arc are introduced for improving the polymerization. The aim of this study was to investigate the effect of conventional and high power halogen lamps and LED light curing unit on degree of conversion of two different composite resins.Materials...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 3 شماره
صفحات -
تاریخ انتشار 2015