TY - JOUR
T1 - On the controllability assessment of biofeedback eyeglasses used in Presbyopia treatment
AU - Yamhure, Germán
AU - Fajardo, Arturo
AU - Paez-Rueda, C. I.
AU - Perilla, Gabriel
AU - Pérez, Manuel
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2023/9
Y1 - 2023/9
N2 - In recent years, hybrid biofeedback systems utilizing user-controlled electrically tunable lenses have emerged as potential treatments for presbyopia. However, the controllability of these systems, closely linked to user adaptability, has received limited attention in the literature due to the challenges associated with obtaining a comprehensive system model. In this study, we present the design, implementation, and validation of an innovative experimental setup aimed at researching and evaluating the controllability of such a biofeedback system. Our setup incorporates a novel low-complexity model, considering the brain, natural lenses (e.g., the crystalline lens), and electrically tunable lenses, to establish a fundamental model for hybrid biofeedback systems. This model is developed based on an analysis of biofeedback systems, geometrical optics, and control theory, facilitating the identification of strategies to decouple system dynamics and enable precise controllability analysis. The proposed experimental setup was validated with volunteers, providing evidence that confirms the reliable operation of the biofeedback system. Our approach encourages a shift from conventional qualitative approaches toward quantitative evaluation of biofeedback devices. The proposed model and experimental setup hold the potential to statistically assess the controllability of hybrid biofeedback systems for correcting presbyopia, paving the way for further advancements in this field.
AB - In recent years, hybrid biofeedback systems utilizing user-controlled electrically tunable lenses have emerged as potential treatments for presbyopia. However, the controllability of these systems, closely linked to user adaptability, has received limited attention in the literature due to the challenges associated with obtaining a comprehensive system model. In this study, we present the design, implementation, and validation of an innovative experimental setup aimed at researching and evaluating the controllability of such a biofeedback system. Our setup incorporates a novel low-complexity model, considering the brain, natural lenses (e.g., the crystalline lens), and electrically tunable lenses, to establish a fundamental model for hybrid biofeedback systems. This model is developed based on an analysis of biofeedback systems, geometrical optics, and control theory, facilitating the identification of strategies to decouple system dynamics and enable precise controllability analysis. The proposed experimental setup was validated with volunteers, providing evidence that confirms the reliable operation of the biofeedback system. Our approach encourages a shift from conventional qualitative approaches toward quantitative evaluation of biofeedback devices. The proposed model and experimental setup hold the potential to statistically assess the controllability of hybrid biofeedback systems for correcting presbyopia, paving the way for further advancements in this field.
KW - Biofeedback based on autofocusing eyeglasses
KW - Human control of electrically tunable lenses
KW - Presbyopia correction based on biofeedback
UR - http://www.scopus.com/inward/record.url?scp=85169903900&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/38d023de-377e-338e-b8bb-389947efc4e3/
U2 - 10.1016/j.displa.2023.102497
DO - 10.1016/j.displa.2023.102497
M3 - Article
AN - SCOPUS:85169903900
SN - 0141-9382
VL - 79
SP - 1
EP - 10
JO - Displays
JF - Displays
M1 - 102497
ER -