Official ESCRS | European Society of Cataract & Refractive Surgeons
Vienna 2018 Delegate Registration Programme Exhibition Virtual Exhibition Satellites 2018 Survey


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Patient and surgeon experience with next generation of wearable visual behaviour monitor

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Session Details

Session Title: Vision & Accommodation Assessment

Session Date/Time: Monday 24/09/2018 | 14:00-16:00

Paper Time: 15:00

Venue: Room A3, Podium 2

First Author: : A.Cummings IRELAND

Co Author(s): :    F. Carones   P. Zakharov   R. McQuaid   M. Mrochen           

Abstract Details


Vivior Visual Behaviour Monitor (VBM) is a unique wearable that can track a patient’s lifestyle unobtrusively using a combination of distance, ambient light, movement and position sensors through objective evaluation of patient activities. This level of data is beneficial to both patient and surgeon, resulting in an individualized treatment solution. A second-generation prototype with the ability to automatically collect data independent of a smartphone could dramatically improve device usability from a patient’s perspective;when compared to our previously reported system. The purpose of this study is to investigate patient and surgeon ease of use of the standalone VBM concept.


Consenting participants were enrolled for testing in a multi-centre pilot feasibility study. Participants underwent VBM training by research personnel. After training, participants used the VBM during their daily routine for 3-5 days (e.g. at home, in the office, hobbies).


Participants considering IOL or presbyopia procedures were selected and asked to sign the Informed Consent. Participants were asked to answer a Questionnaire on visual difficulties, including expectations after surgery. Research personnel performed training on VBM use. Participants were advised to use VBM for at least 36 hours in total after which participant completed a usability questionnaire of VBM experience. The surgeon reviewed and discussed data with the participant, and a decision was made on the procedure/surgery. If the participant opted for surgery, they were asked to complete a visual satisfaction Questionnaire 1 month post-operatively.


Study investigated the ease of use for second-generation VBM for both patient and surgeon. Participants were relieved from carrying the coupled smartphone during measurements, which was required for the previous generation. This helped to achieve higher compliance of patients with measurement procedure and increased collected data volume and consistency. Consequently, this resulted in more robust evaluation of visual lifestyle. Surgeons found VBM to be a supportive tool for measuring objective data for patients considering IOL or presbyopia procedures.


VBM with an ability to record measurements in a standalone way presents substantial improvement in device handling by patients. Data can be collected in a more consistent way without gaps typically caused by smartphone connection issues. The second-generation prototype demonstrated increased usability from a patient and surgeon perspective and thus standalone concept can be adopted for the further product development.

Financial Disclosure:

... gains financially from product or procedure presented, ... travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, ... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, ... receives non-monetary benefits from a company producing, developing or supplying the product or procedure presented., ... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, ... is employed by a for-profit company with an interest in the subject of the presentation, ... has significant investment interest in a company producing, developing or supplying product or procedure presented

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