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Intravitreal Injection with a Conjunctival Injection Device: A Single-Center Experience
Yu Qiang Soh1, Nathalie Pei Yu Chiam1, Andrew Shih Hsiang Tsai1
1Singapore National Eye Centre, Singapore.
Translational Vision Science & Technology
|August 29, 2020
Summary
The InVitria device offers faster intravitreal injections compared to the freehand technique, without increasing patient discomfort. This clinical study demonstrates its effectiveness as a viable alternative for ophthalmic procedures.
Area of Science:
- Ophthalmology
- Surgical Devices
- Clinical Trials
Background:
- Intravitreal injections are a common procedure in ophthalmology.
- The conventional freehand technique carries risks and variability.
- New devices aim to improve the safety and efficiency of intravitreal injections.
Purpose of the Study:
- To compare the clinical performance of the InVitria intravitreal injection assistant device against the conventional freehand technique.
- To evaluate the impact of surgeon experience on injection times and outcomes for both methods.
Main Methods:
- A randomized controlled trial involving 140 patients undergoing intravitreal injections.
- Patients were assigned to either the InVitria device or the conventional freehand technique.
- Surgeons were categorized as junior or senior to assess experience-related differences.
Main Results:
- The InVitria device significantly reduced mean injection times (64.9 ± 26.8 seconds) compared to the conventional technique (90.0 ± 23.3 seconds; P < 0.001).
- No significant difference in patient-reported pain scores was observed between the two techniques.
- Surgeon experience did not significantly impact injection times for either the conventional or InVitria methods.
Conclusions:
- The InVitria device is a safe and effective alternative to the conventional freehand technique for intravitreal injections.
- The device has the potential to improve efficiency by reducing procedure times.
- Clinical deployment of the InVitria is supported by this evidence, offering comparable patient comfort.
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