The modern cataract ultrasound emulsification technique is a revolution in ophthalmic microsurgery, invented in the 1970s by Kelman, an American, and then promoted worldwide after clinical trials and academic studies. This technique uses an operating microscope and an ultrasound emulsification treatment system to remove cataracts. It has been widely carried out and popularized in China and has become the mainstream method of cataract surgery treatment today.
The infiniti ultrasound emulsification system produced by Alcon USA, which adopts the patented design of left and right twisting ultrasound (Ozil) technology, which has the characteristics of less heat production during surgery, high surgical efficiency and good surgical safety. Using this system can increase the corneal clarity of patients after surgery and reduce the risk of surgical thermal burns, and at the same time, the infiniti ultrasound emulsifier At the same time, the infiniti ultrasonic mammography system can adopt the world’s most advanced coaxial micro-incision technology, so that the smallest cataract ultrasonic mammography incision can be 2.0-2.2 mm, and patients can recover quickly and effectively after surgery, which greatly improves the postoperative visual quality of patients.
In recent years, cataract ultrasound emulsification has been rapidly developed in terms of surgical techniques, surgical instruments and ultrasound emulsifier performance. Especially in the performance of the ultrasound emulsifier, the main improvement is the energy release mode.
Its characteristics are.
1.Better vision recovery and lighter postoperative reaction;
2.Smaller postoperative astigmatism and more favorable correction or control of postoperative astigmatism;
3.Short surgery time, small incision, light pain, and less light damage;
4.Little surgical trauma, fast postoperative recovery; small postoperative medication dose, short time;
5.Better surgical control, improved safety, fewer complications, easy to maintain deep anterior chamber during surgery, reduced chance of posterior capsule damage and cortical remnants, safer and more reliable IOL implantation;
6.No need to wait for the cataract to mature before performing the surgery, avoiding all the inconvenience and pain during the long waiting process and improving the quality of life.
Indications.
Generally speaking, all cases that are suitable for extracapsular cataract extraction are feasible for ultrasonic emulsion aspiration. However, in case selection, relative selection criteria should be determined according to their own technical conditions.
Some of the following cases should be used as reference for selection.
1, pupil preoperative dilated pupil at least not less than 6mm for safety. Beginners must not choose a small pupil case.
2, corneal corneal completely transparent is the basic condition for good ultrasound emulsification. Limited corneal opacity, degeneration and other lesions that affect its transparency are not suitable for this procedure.
3, the anterior chamber depth must be maintained in the anterior chamber has sufficient depth, so persistent shallow anterior chamber, in the selection of cases should be carefully considered.
4. Beginners of lens nuclear hardness should select cases with appropriate nuclear hardness, and with increasing proficiency, the selection range can be expanded.
Contraindications.
1, cataracts with extremely hard nuclei (black nuclei or partially dark brown nuclei), dislocated or semi-dislocated cataracts are not suitable for ultrasonic emulsion aspiration.
2, corneal clouding, stubborn shallow anterior chamber, pupillary tonicity, small eye with small cornea, etc.