All medical devices, equipment and accessories must comply with strict national and international standards. This is no different for special surgical and treatment lights. They are an indispensable part of every operating theatre or treatment room. Their role is extremely important, which is why they should have certain features in order to fully fulfil their function. First and foremost, their light must illuminate the surgical field strongly and accurately and minimise shadows. Surgical lights should also make it easier to see details. Let's take a look at what else you should consider when choosing the right light. Why is choosing the right surgical light important? The choice of medical lighting has a direct impact on the work of the surgeon. Specialised surgical and treatment lights must therefore meet a number of requirements. Their quality determines the adequate visibility of a patient's body parts. Without adequate lighting, it would be very difficult to perform operations and procedures. In terms of design and application, a distinction is made between wall, ceiling and mobile lights. Modern surgical lights must offer good light quality, be ergonomic, easy to use and efficient so that the medical team can perform their work at the highest level and in a pleasant environment. They must also be easy to clean and disinfect and offer the possibility of adjusting the light intensity and the size of the surgical field. What parameters should I consider when choosing an operating theatre light? The most important parameters for an operating theatre light are light intensity, colour rendering index, colour temperature, heat radiation and shadow-free illumination. The last factor is particularly important, as the lamp must provide maximum light in the surgical field. The shadow-free value of the lamp is determined by a percentage and should be as high as possible. The light intensity value of the lamp should also be high. It is specified in lux and measured at a distance of one metre. A good surgical light should produce a value between 40,000 lx and 160,000 lx at its focal point. When selecting a suitable lamp for the operating theatre or surgery, attention must also be paid to the colour rendering index in the unit Ra in the range from 0 to 100. In order for the lamp to function properly, it should have an Ra index of at least 90. The colour temperature of the lamp has a significant influence on this value, which should be in the range of 4000 to 5000 K. It is also worth mentioning the heat radiation emitted by the lamp, which affects the heat dissipation to the operating table and should therefore be as low as possible. Precise requirements for the parameters of operating and treatment lamps can be found in the Regulation of the Minister of Health of 22 June 2005 on the requirements for the technical and hygienic aspects of premises and equipment in a healthcare facility.
