Gupta Ring Pupil Expander

About Gupta Ring Pupil Expander

The Gupta ring is a single-use iris retraction device used in ophthalmic surgery to mechanically dilate a small or non-dilating pupil. By expanding the pupil, it provides the surgeon with a better view and greater access to the lens during procedures like cataract or vitreoretinal surgery.

Key features

• Expansion mechanism: The ring has four scrolls or notches that engage with the pupillary margin, expanding the pupil to create a square-shaped opening. A standard Gupta ring creates an opening of about 5.50 mm per side and 7.75 mm diagonally, while the "Gupta Ring Plus" version provides an even bigger pupil for a rigid iris.
• Minimal incision: The device can be inserted through a small, 1.4 mm to 2.8 mm incision.
• Materials: It is typically made from PMMA (polymethyl methacrylate) and is designed for single use.
• Injector: The Gupta ring is pre-loaded into a sterile injector system, often a butterfly-type cartridge, for easier insertion into the anterior chamber of the eye.
• Removal: The ring is removed at the end of the procedure by disengaging the scrolls from the iris margin.
• Surgical use and benefitsSurgeons use the Gupta ring and similar devices in cases where pharmaceutical eye drops fail to adequately dilate the pupil. These situations can occur due to conditions such as:
  • Intraoperative floppy iris syndrome (IFIS)
  • Diabetes
  • Pseudoexfoliation syndrome
  • Fibrotic irises from previous trauma or surgery
  The use of the Gupta ring during surgery has several advantages:
  • Wider view: Provides an obstacle-free operating field for the surgeon.
  • Iris protection: Expands the pupil without pinching or tearing the iris tissue, especially compared to some other methods like iris hooks.
  • Stability: Helps stabilize a floppy or rigid iris, particularly in cases with weak zonules.
  • Restores natural pupil: Since it is removed after the procedure, the patient's pupil can return to its original shape and function.

Efficient and Safe Pupil Expansion

The Gupta Ring Pupil Expander offers surgeons a reliable, safe method for achieving adequate pupil dilation during cataract procedures. Its flexible, shape-memory design simplifies insertion and removal, minimizing trauma and procedural time. Single-use and preloaded with a disposable injector, the device comes sterilized for immediate use, eliminating cross-contamination risks.


High-Quality, Sterile Materials

Constructed from a medical-grade polymer, the ring delivers superior flexibility and resilience. Its waterproof and sterile properties ensure suitability for sensitive ophthalmic environments. The blue coloration provides optimal visibility, while universal sizing supports a broad range of surgical applications. The product remains effective with a five-year shelf life if stored properly.