BHEX PUPIL EXPANDER PRELOADED IRI RETRACTOR RING

About BHEX PUPIL EXPANDER PRELOADED IRI RETRACTOR RING

• Design: A flexible, jointless hexagon made of medical-grade plastic (polyimide) with a hair-thin profile of 0.075 mm.
• Dimensions: The device itself is 6.5 mm, providing a consistent 5.5 mm expanded pupil.
• Structure: It consists of alternating notches (at the corners) and flanges (at the sides) disposed in a single plane.
• Delivery: Preloaded in a transparent, sterile carrier, it is typically inserted and removed using specialized 23-gauge micro-forceps. 
• urgical Benefits
  • Incision Compatibility: Due to its thin design, it can pass through incisions as small as 1.0 mm to 1.5 mm without the need for a bulky injector.
  • Reduced Obstruction: Its low profile stays away from the corneal endothelium and does not obstruct surgical instruments like phaco probes or IOL cartridges.
  • Safety: The uniplanar design allows direct visualization of the notches, making it safer to use even after a capsulorhexis has been performed.
  • Postoperative Outcome: Studies indicate it causes significantly less postoperative pupillary distortion compared to bulkier rings. 
  Usage Tips
  1. Preparation: In cases of extremely rigid, non-elastic pupils (less than 4 mm), surgeons often perform a bimanual stretch with Kuglen hooks before inserting the B-HEX to prevent the device from buckling.
  2. Viscoelastic Use: Injecting viscoelastic under the iris margin helps lift it, creating the necessary space to tuck the flanges.
  3. Removal: The device is removed by disengaging the notches and pulling it through the main incision; it often exits smoothly even through a side-port.