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Perioperative monitoring of the ocular heat transfer is important for increas-
ing the safety of long-term vitreoretinal surgery. The study is aimed at studying new
thermoelectric measuring devices for comprehensive perioperative monitoring of ocular
temperature and heat fluxes in vitreoretinal surgery. This pilot, open-label, prospective
study included 23 patients (23 eyes) with proliferative diabetic retinopathy (PDR) in both
eyes. The thermoelectric devices were developed for measuring intraocular temperature in
vitreoretinal surgery and for determining the ocular surface temperature (OST) and heat
flux (HF) density. In all cases, OST and HF density of both eyes were recorded (before
and after surgery). Intraocular temperature and temperature of the irrigation fluid were
measured intraoperatively. No complications associated with the perioperative use of
thermoelectric temperature and HF sensors were identified during the study. The suc-
cessful application of thermoelectric temperature and HF sensors, developed specifically
for ophthalmological applications, in comprehensive perioperative monitoring of ocular
heat transfer in patients with PDR in vitreoretinal surgery was demonstrated for the first
time. Further research is needed to confirm the benefits of perioperative temperature
monitoring in vitreoretinal surgery, as well as to develop equipment for active management
of temperature in surgical practice.
