Preoperative automatic visual behavioural analysis as a tool for intraocular lens choice in cataract surgery

Abstract

Purpose: Cataract is the main cause of blindness, affecting 18 million people worldwide, with the highest incidence in the population above 50 years of age. Low visual acuity caused by cataract may have a negative impact on patient quality of life. The current treatment is surgery in order to replace the natural lens with an artificial intraocular lens (IOL), which can be mono-or multifocal. However, due to potential side effects, IOLs must be carefully chosen to ensure higher patient satisfaction. Thus, studies on the visual behavior of these patients may be an important tool to determine the best type of IOL implantation. This study proposed an anamnestic add-on for optimizing the choice of IOL. Methods: We used a camera that automatically takes pictures, documenting the patient's visual routine in order to obtain additional information about the fre quency of distant, intermediate, and near sights. Results:The results indicated an estimated frequency percentage, suggesting that visual analysis of routine photographic records of a patient with cataract may be useful for understanding behavioural gaze and for choosing visual management strategy after cataract surgery, simultaneously stimulating interest for customized IOL manufacturing according to individual needs.

User Friendliness of a Wearable Visual Behavior Monitor for Cataract and Refractive Surgery

“…Its importance and introduction have been used in the literature for a long time where specific questionnaires have been developed for specific questions [23], as we have used it in our study. Current psychometric measures may be subject to systematic error such as recall bias and could cause judgment errors resulting in patient discontent with surgical outcomes [19,20]. Integrating technology, such as the wearable VBM, which collects objective visual behavior data for pre-operative patient assessments, has shown improvement in the current understanding of patient visual behavior.…”

“…While the use of questionnaires and visual assessments in measuring patient outcomes are effective, there are limitations regarding the subjectivity of the results. Current psychometric measures may be subject to systematic error such as recall bias and could cause judgment errors resulting in patient discontentment with surgical outcomes [19,20]. Visual information based on patient behavior can be harnessed using technological tools that perform eye tracking, analyzing visual behavior under various circumstances.…”