Avoid prolonged exposure to the infrared light emitted by the eye tracker, especially at close range. While the infrared (IR) light used in modern eye trackers is typically low-power and within international safety limits, extended or improper use such as staring directly into the sensor from a very close distance can lead to discomfort or eye strain. It is important to follow the manufacturer’s recommended viewing distance and calibration process for each user to ensure comfort and safety, particularly in research or educational settings involving children or sensitive individuals.
Avoid pressing too hard on the tactile surface or using sharp objects, as this may damage the sensitive haptic actuators and reduce the effectiveness of the tactile feedback. Tactile displays are designed to simulate touch sensations like vibration, texture, or shape using delicate components. Excessive force can lead to mechanical failure or loss of sensitivity, affecting the accuracy and responsiveness of the display. Users should interact with the device using clean, dry hands and follow the manufacturer's instructions on proper use, especially in shared or lab environments.