ErgoPractice News – January 2022 By Jin Chang PhD jchang@surgitel.com Summary Our goal as a company is to design, engineer, and build the Ultimate Loupes. We would like to develop a list of requirements as a guide and criteria for building the ultimate loupes. Once we establish a list of essential requirements for these ultimate […]
ErgoPractice News – November 2021 By Jin Chang PhD jchang@surgitel.com Introduction The use of extreme magnification for microsurgical procedures and various dental procedures such as restorative, prosthodontic, and endodontic procedures has gained widespread acceptance.1-3 As an extreme magnification instrument, operating microscopes have been used because they can offer extreme magnification powers. But there are several […]
ErgoPractice News – October 2021 By Jin Chang PhD jchang@surgitel.com Properly fitted loupes can play two important roles improving vision and improving working posture. We reviewed the effect of the viewing angle (declination angle) of loupes on the neck posture and identified that improperly fitted loupes are the main cause of chronic neck pain. With […]
ErgoPractice News – August 2021 By Jin Chang PhD jchang@surgitel.com Summary Excessive neck and/or head tilt is the main cause of clinicians’ neck pain. Holding any body part out of balance stresses the supporting muscles and skeletal structure. Doing this for days and years on end can lead to excruciating pain and irreparable injury. Stress […]
ErgoPractice News – July 2021 By Jin Chang PhD jchang@surgitel.com Traditional illumination systems used thermal light sources such as halogen and xenon which have continuous spectral distributions, but white LED lights consist of two spectral bands: “Blue” spectral band and “Green-Red” spectral band. Figure 1 shows spectral distributions of four light sources: two thermal light […]
ErgoPractice News – June 2021 By Jin Chang PhD jchang@surgitel.com Selection Guide of Loupes When we purchase loupes, we should consider several important factors such as loupe mounting styles, magnification power, field size, declination angle, frame design, nose pad options, and maintenance cost. These factors are evaluated based on working distance, working posture (sitting or […]
ErgoPractice News – May 2021 By Jin Chang PhD jchang@surgitel.com Summary Key selection factors of dental LED headlights are “balanced spectral distribution” (i.e., the peak of the blue spectral band is similar to the peak of the green-red spectral band) and “uniform and consistent beam pattern” which should not vary as the working distance changes. […]
ErgoPractice News – April 2021 By Jin Chang PhD jchang@surgitel.com Some of the clinicians who have used SurgiTel Front-Lens-Mounted (FLM) loupes do not like Through-The-Lens (TTL) loupes because the magnified field size of TTL loupes is too large (more than needed) and the blind spot (or called scotoma) of TTL loupes between the peripheral visual […]
ErgoPractice News – March 2021 By Jin Chang PhD jchang@surgitel.com Loupes and LED headlights have become essential for the practice of dentistry and surgery, but they can be detrimental to the health of users if not made properly. Improperly fitted loupes can cause chronic pain in neck and upper shoulders1 and the strong blue light […]
ErgoPractice News – February 2021 By Jin Chang PhD jchang@surgitel.com SurgiTel Products Designed for Female Clinicians Recognizing physical differences between female clinicians and male clinicians, SurgiTel has developed loupes and LED lights that meet special requirements of female clinicians. The main physical differences of the average female clinician compared to the average male clinician are […]
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