A recent study by Ana Coito PhD, Avantika Naidu PhD, Julian Lehmann MS, Bruno Hauser MS, Dominik Brügger PhD, and Mathias Abegg MD PhD evaluated the test-retest reliability of gaze precision of neos®  in all 9 cardinal directions. The researchers used a custom-made robotic pair of eyes to simulate human eye movements in ideal conditions and without the inherent biological variability. 

Key Findings of the Study: 

1. High Test-Retest Reliability: neos^® demonstrated strong consistency in gaze precision measurements, with an Intraclass Correlation Coefficient (ICC) greater than 0.99 and a Standard Error of Measurement (SEM) of 0.04. This indicates neos^® has the ability to reliably measure gaze direction movements of each individual eye in all 9 gaze directions. 
    

1. Consistent Measurements Across All Directions: The system maintained stable gaze precision in all nine cardinal gaze directions, ensuring  reliable measurement of each eye within the central 20 degrees of vision. 
    

1. Stable Performance Under Noise Conditions: Even when subjected to simulated disturbances, neos^® delivered consistent results, indicating its robustness for practical clinical use. 
    

The results demonstrate that neos^® provides reliable, consistent and robust measurements of individual eye movements, supporting its use in a vast array of clinical applications to objectively measure functional eye movements. neos^® has the potential to become an invaluable tool to aid in screening, diagnosis, and monitoring of oculomotor conditions that are highly relevant in ophthalmology and neurology.  

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