Venturi pumps create optimal fluidic conditions for segment removal in a stable anterior chamber. 1Ī high and uninterrupted flow rate is ideal to draw segments out of the capsular bag while maintaining the tip in the iris plane. Variable control is important for successful outcomes, particularly for surgeons who desire greater control for femtosecond laser-assisted procedures (which require less power), and dense cataracts (requiring more power). If pressure is maintained at a constant level, the anterior chamber is more stable. ![]() Swartz: Effectively comanaging femtosecond laser-assisted cataract surgeryįluidics is the dynamic between the fluid entering the eye and the intraocular pressure (IOP) during cataract surgery. The tip has a hole, which allows the fragmented lens as well as irrigation solution (BSS) to be aspirated. The phaco tip, or fragmentation needle, vibrates at an ultrasonic frequency and emulsifies a cataract when connected to the ultrasonic hand piece. The ultrasound hand piece is connected to a phaco system, which drives the procedure using settings as dictated by the surgeon. Modern lens removal occurs using phacoemulsification (phaco), which incorporates ultrasound to emulsify and vacuum to extract a cataractous lens. Incisions are often fewer than 3 mm because implants are engineered to be placed in smaller incisions. Advances in phacoemulsificationĬataract surgery involves a corneal incision as well as a paracentsis, removal of the cataract and implantation of the intraocular lens (IOL), while maintaining the pressure in the eye. ![]() This includes surgical systems providing better control, lasers to perform manual techniques, and intraoperative evaluation to evaluate surgical endpoints before the patient leaves the operating room (OR). Modern ophthalmic cataract surgery now employs sophisticated techniques to improve outcomes and patient satisfaction.
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