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Novel ocular telemetry sensor could improve glaucoma management
Br J Ophthalmol. 2011;95:627-629.
A novel wireless ocular telemetry sensor that is designed to measure IOP continuously was found to be safe and well-tolerated in glaucoma patients, according to a study.
"We believe that this [ocular telemetry sensor] has the potential to improve clinical care of glaucoma patients in the same way that continuous blood pressure monitoring or home measurements of blood glucose levels have done for patients with high blood pressure or diabetes," the authors said.
The prospective, observational study included 15 consecutive patients, of whom 12 had primary open-angle glaucoma and three had pseudoexfoliative glaucoma.
All patients received signals from a Triggerfish (Sensimed) disposable silicone contact lens with an embedded micro-electromechanical system that measures changes in corneal curvature caused by IOP fluctuation.
Nine of the 13 patients (69%) who completed 24-hour monitoring had the highest recorded signals at nighttime.
No serious adverse events were reported, and the average comfort score was 7. After the study concluded, 11 patients (73%) changed their glaucoma therapy.
Further research is necessary to determine the effect of nocturnal changes in corneal thickness and ocular movements on device precision, the authors said.