The Simcoe Double Barrel I/A (Irrigation/Aspiration) Cannula is a specialized surgical instrument used in ophthalmic procedures, particularly during cataract surgery. It is designed to assist in the removal of lens material and maintain a clear visual field during the surgery.

The cannula consists of two barrels, one for irrigation and the other for aspiration. The irrigation barrel is used to deliver a sterile solution, typically balanced salt solution (BSS), to the surgical site. This helps to maintain the proper hydration of the eye and clear away debris.

The aspiration barrel, on the other hand, is used to remove the emulsified or fragmented lens material from the eye. It creates a suction force that allows the surgeon to carefully extract the lens material through a small incision. The aspiration process helps maintain a clear visual field for the surgeon and facilitates the removal of the cataract or other lens-related material.

The Simcoe Double Barrel I/A Cannula has an overall length of 35mm and features a 23-gauge size with a 0.3mm port. These specifications ensure that the cannula is thin and precise enough to be used effectively in delicate ophthalmic surgeries. The smaller gauge size reduces the risk of trauma to the surrounding tissues while enabling efficient irrigation and aspiration of the lens material.