Reproducing the natural light
These disorders, in the long run, can cause diseases procuring a real lack of concentration, headaches over orbital and temples, redness, burning, or discomfort in the eyes even already in the morning when you wake up. A continuous exposure to a wrong light source can lead one to a set of direct or reflected pathologies. On the contrary, a good quality and flexibility of the vision is a prerequisite for your general welfare.
The collateral effects of a wrong lighting
Modification of the biorhytm
Stress, tensions, headaches
And the patient?
The operating light is the element that is constantly in front of the eyes of the patient. A wrong light is a source of stress for him, who can be “blinded” at every movement of the lamp. This stress is inevitably reflected on the perception which he has of the doctor’s cabinet he is in. More relaxed is a patient, more willing to receive treatment and, last but not least, to come back in the dental cabinet.
Quality of light
When choosing a dental lamp you must consider some features for the determination of its quality of light. It is essential that artificial light is able to faithfully reproduce the colours of the materials and tissues which may appear different, depending on the colour temperature of the light source and the relative colour rendering. This is of fundamental importance for the success of the job. The colour temperature is measured in Kelvin (K): a lower value corresponds to a warmer colour tone which tends toward red. A higher colour temperature means cooler shades (green and blue). The reference “neutral” value of the colour temperature, “the pure white”, corresponds to the midday sun on a beautiful day and is about 5,000 K.
Even the sunlight affects colour perception: at changing of the seasons or hours of the day we see different colours. Therefore it is important to have a light source that, at any time, is able to give accurate informations to the doctor. All FARO lamps offer intensity adjustment so that the visual function can capture the tiny details of the operative field with minimal effort, constantly keeping the colour temperature at 5,000 K.
How much light?
Managing the contrast
To avoid visual stress should be avoided excessive contrast between the working area and the surrounding environment; the continue need of adaptation to any movement of the eyes leads to an inevitable eye fatigue. It is therefore a good rule that the lighting of the workplace is higher than the one in the room, and, for a more comfortable visual activity, the light source should not be addressed directly to the eye: it must be disposed or behind or side or above the observer.
The glare, not only annoying, is potentially damaging because it can cause serious eye lesions on the retina. These lesions can be determined by a thermal effect (coagulation of proteins in the retina) or by a photochemical effect (chemical reactions, without raising the temperature). Especially children are exposed to this risk, as they are subject to the development of their natural defenses. The reflected light optical project FARO provides a defined spot and does not produce heat to minimize this phenomenon. In the case of patients with diagnosed eye diseases is also possible to obtain an overall screen through.