Ophthalmology
OPHTHALMOLOGY
Precision Where It Matters Most
For retinal specialists performing thousands of intravitreal injections a year, the Precision Syringe delivers 21% greater accuracy in a procedure where every tenth of a milliliter counts.
The Problem
Intravitreal anti-VEGF injections are among the most commonly performed procedures in ophthalmology, treating conditions including wet AMD, diabetic macular edema, and retinal vein occlusion. Despite the extraordinary precision these injections demand — 0.05mL delivered into the vitreous cavity — physicians still use a thumb-plunger syringe design that hasn’t fundamentally changed since the 1850s. The inherent biomechanics of thumb actuation create forward-retraction movement that introduces variability in injection depth and volume.
The Solution
The Suh Precision Syringe is the first fundamental redesign of the syringe’s control mechanism. By replacing the thumb-plunger with a patented index-finger actuator positioned directly adjacent to the needle, the device enables a natural pencil grip that measurably reduces the forward-retraction movement inherent in conventional syringe operation.
Clinical Evidence
A peer-reviewed study published in Clinical Ophthalmology (2019) compared the Precision Syringe against conventional designs across multiple operators in simulated intravitreal injection. The results demonstrated a statistically significant 21% reduction in plunger excursion variability — a direct measure of injection accuracy and control.
Why It Matters for Your Practice
• More consistent delivery: Reduced injection variability means more predictable drug delivery to the target tissue with each injection.
• Reduced forward-retraction movement: The index-finger mechanism addresses a known biomechanical contributor to injection variability, improving control during the procedure.
• Physician ergonomics: The natural pencil grip reduces hand fatigue across high-volume injection days — 30, 40, or more procedures in a single session.
• Zero workflow disruption: Standard Luer Lock compatibility. No capital equipment. No new training. A drop-in consumable that works with your existing needles and protocols.
• Competitive consumable pricing: Priced in line with current specialty syringes. No incremental budget approval required.