A New Chapter in Goniotomy Innovation
Bladeless Goniotomy
The SION® Surgical Instrument represents a new chapter in goniotomy innovation, designed to enable a smooth and gentle procedure. Its bladeless tip and integrated tissue collection window enhance control, navigation, and visibility for an optimized surgical experience.
Brought to you by Sight Sciences, whose mission is to develop transformative, interventional technologies that allow eyecare providers to procedurally elevate the standards of care, SION represents the next generation in innovative ophthalmic surgery instruments.
- Ergonomic Design A bladeless design for smooth and gentle surgery.
- Versatile Can be used in combination with cataract surgery.
- Established Reimbursement A proven surgical option backed by an established reimbursement code.
Meet SION
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What Surgeons are Saying About SION
“I was surprised and impressed at how smooth SION made the goniotomy procedure.”
Resources and Essentials
Reimbursement Guide
SION® Brochure
Instructions for Use
A Closer Look
Additional Videos
At Sight Sciences, Our Mission is Clear:
to develop transformative, interventional technologies that allow eyecare providers to procedurally elevate the standards of care — empowering people to keep seeing.
We also offer the OMNI® Surgical System, a novel, implant-free Minimally Invasive Glaucoma Surgery (MIGS) device. OMNI can be used in combination with cataract surgery or in a standalone procedure to lower IOP in adult patients with Primary Open Angle Glaucoma.
Important Product Information
INDICATIONS FOR USE: The SION Surgical Instrument is a manually operated device used in ophthalmic surgical procedures to excise trabecular meshwork. The SION Surgical Instrument is a sterile, single use device.
CONTRAINDICATIONS: Do not use the SION if there is inadequate corneal clarity, or poor visualization of angle structures or in any situations where the anterior chamber angle has been damaged (i.e., from trauma or surgery) or it may not be possible to pass the device through Schlemm’s canal. SION is contraindicated in patients with angle recession, neovascular glaucoma, chronic angle closure, narrow angle glaucoma, narrow inlets with plateau iris, peripheral anterior synechiae, traumatic, malignant, or uveitic glaucoma; it is also contraindicated in patients who have had previous argon laser trabeculoplasty, ab interno devices implanted in or through Schlemm’s Canal, or prior incisional glaucoma surgery including trabeculotomy, goniotomy.
WARNINGS: Always maintain direct microscopic and gonioscopic visualization of the instrument tip during the procedure to avoid inadvertently damaging intraocular structures. Avoid touching the SION tip to any surfaces as this may damage it. Do not use the SION tip to create a corneal incision.