Hidden sensor reveals dangerous blood sugar dips during routine eye surgery
NCT ID NCT07696910
First seen Jul 10, 2026 · Last updated Jul 10, 2026
Summary
This study uses a hidden continuous glucose monitor (CGM) to track blood sugar levels in people with diabetes during vitrectomy eye surgery. The monitor records glucose every 15 minutes but does not show readings to doctors or patients, so it does not affect care. The goal is to find out how often low blood sugar (hypoglycemia) occurs during and right after surgery, which standard fingerstick tests might miss. Results could help improve monitoring for future patients.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- masked continuous glucose monitor (FreeStyle Libre 2)
- What this could lead to
- If this study finds that hidden low blood sugar episodes are common during eye surgery, it could lead to better monitoring guidelines to protect patients with diabetes.
- What could go wrong
- This is a small, single-center observational study, so results may not apply to all hospitals or patients. The monitor is hidden and does not guide treatment, so it cannot prevent hypoglycemia during the study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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