Study shows eye-tracking technology improves nursing training

August 16, 2016 by Laura Perry, University of California, Los Angeles
Eye-tracking data show that experienced nurses’ attention is focused where it needs to be, while students look at everything in front of them, including less relevant areas. Credit: UCLA School of Nursing

A new study by researchers at the UCLA School of Nursing shows that using eye-tracking technology could improve nursing education by reducing the role of subjective assessments and by providing more consistent evaluations.

With more than 400,000 deaths each year in hospitals from preventable causes, ensuring relies on health care educators to train and certify safe, competent practitioners. Until now, educators have been using assessments that are primarily subjective and provided inconsistent results to determine competency.

Eye-tracking technology has been used to test and train airline pilots. UCLA School of Nursing researchers decided to test whether it could be used to determine differences in task completion between novice and expert during simulation training. Expert nurses are intensive care or emergency department nurses with five or more years of experience and novice nurses are senior undergraduate nursing students. Results demonstrate that using this technology just might be the answer in the assessment of nursing clinical performance.

"Patient safety demands nurses be competent but there has been no uniform, objective method to ensure this," said Mary Ann Shinnick, lead researcher and assistant professor at the UCLA School of Nursing. "The use of eye tracking can aid in assessment and training and may close the gap of traditional subjectivity."

The study is published online ahead of print in the journal Clinical Simulation in Nursing.

Eye-tracking glasses use sensor technology and an embedded, unobtrusive video camera and technology to track the movements of a person's pupil, such that it knows exactly where a person's eyes are focused. It observes and records eye behavior such as pupil dilation and also records where the wearer is focusing her or his attention.

Study shows eye-tracking technology improves nursing training
Lecturer Barbara Demman wearing eye-tracking glasses. Credit: UCLA School of Nursing

In this study, was used to compare the performance responses in seven basic nursing tasks—such as placing a pulse oximeter on a finger, listening to lung sounds, applying an oxygen delivery device—between expert nurses from two hospitals and 35 nursing students in a simulation of a heart failure patient who was short of breath. A written test was administered to all participants to ensure that both groups had equivalent knowledge and understanding of heart failure and how to care for this type of patient.

The eye-tracking data showed a marked difference between how the novice and the more experienced nurses processed information in a busy environment. While the students spent a significant amount of time looking at data that was not relevant to the patient's immediate problem, the experts seemed to know what was important and in turn, were able acquire the pertinent information much faster. Of the seven tasks, all the students were able to complete only one, while those in the expert group completed four of the seven. The "time to task" completion was also significantly different between the groups in 5 of 7 tasks.

Added Shinnick, was is also the director of simulation at UCLA School of Nursing: "This ability to quickly discern the vital information and focus attention to areas of relevance as demonstrated by the expert nurses can be used as a powerful model to help novice nurses gain situational awareness and refine their focus, noticing issues that demand immediate attention and subsequently improve clinical performance."

The study yielded an unexpected but valuable finding as well: an unprecedented bird's-eye view of the events during the simulation. For instance, the participants were required to administer a medication into the patient's intravenous line. In video shot from the standard overhead perspective, the participant's performance in using a sterile technique is commonly obstructed as they bend over the patient blocking the ceiling-mounted cameras. With the eye tracker, there is a full view of the participant's performance, making it an ideal tool to assess competency.

"Embracing new technology adds to the tool box educators have to ensure safe practitioners," said Shinnick. "In addition, eye tracking can add to the education of novice nurses as the recordings can be shared with students so they can learn which areas in a situation are important to focus on and which are not."

Research is ongoing to further test the utility of eye-tracking glasses as an assessment tool in simulation and in clinical settings. This is being done with video review and competency scoring by both experienced nursing faculty and clinical experts who routinely perform assessments of nurses to ensure the reliability and objectivity of eye-tracking glasses as an assessment method in simulation.

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