Pupil Expansion

Small pupils add complexity and difficulty to many ophthalmic procedures. Many eyes with cataracts have concurrent pathology that limits pupillary dilation. Glycogen deposition from diabetes, pseudoexfoliation, miotic therapy, synechial scar formation from prior trauma or inflammation may cause a pupil to dilate poorly. Intraoperative floppy iris syndrome (IFIS), associated with systemic administration of alpha-1a receptor antagonists (e.g. Flomax) comprises iris miosis, billowing and a tendency for iris prolapse. Complication rates for cataract surgery in these patients can be up to 12.5%.

Pupil expansion devices are essential tools for cataract surgery in cases of non-dilating pupils. Use of minimally invasive approaches that reduce surgical trauma allow the surgeon to minimize the risk of complications and provide patients with the best possible visual and anatomic outcomes.

To view pupil expansion procedure using Malyugin Ring 2.0 from MST click here.

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