Monitoring and improvement of posture compliance in patients with intraocular tamponade

Vitreoretinal surgery usually utilizes intraoperative tamponade agents to seal retinal breaks, which requires patients to maintain specific postures postoperatively. This requirement poses challenges to patient compliance. We developed a device for monitoring and intervening in posture maintenance. The purpose of this study was to investigate the efficiency of this system in improving patients' compliance with specific postures. Forty-seven patients wore the device for 6 h. During each hour, patients received a vibration alert when the posture was out of the target range in 30 min, with the alert off in the remaining 30 min. Compliance was quantified as the percentage of time with the posture in target range within a given timeframe. The factors affecting compliance were further explored. We recorded patients' posture and analyzed head-tilting tendency using heatmaps. The compliance in the alert-on and alert-off periods was compared. The compliance was not affected by sex or age. Patients in Fowler's posture exhibited higher compliance compared with those in prone posture. The deviation in prone posture was predominantly upward and toward the operative side. The compliance was 0.686 during the day and 0.631 at night in alert-off mode and improved to 0.916 and 0.930 with the alert, respectively (both <italic>p</italic> &lt; 0.01). Patients with lower initial compliance (<italic>p</italic> &lt; 0.001) had more compliance improvements. The device efficiently monitors and improves posture compliance in patients with intraocular tamponade.