lens resection

1. Various types of soft cataracts. 2. Lens dislocation or subluxation. 3. Penetrating keratoplasty with opacity of the lens, while opaque lens resection. 4. When the pupil is rebuilt, it can be considered to be removed together with the turbid membrane. Treatment of diseases: ectopic cataract Indication 1. Various types of soft cataracts. 2. Lens dislocation or subluxation. 3. Penetrating keratoplasty with opacity of the lens, while opaque lens resection. 4. When the pupil is rebuilt, it can be considered to be removed together with the turbid membrane. Contraindications The patient is too old and should be filled with poor general condition. Surgical procedure 1. The upper scleral incision is placed in a lens capsule with a 30° curved needle attached to the perfusion. 2. The cutting head enters the equator of the lens from another incision. The preset cutting speed is 400 times/second, and the attractive head of 20~26.7kpa is kept consistent with the plane of the lens; the foot gate is activated; the "mining method" is adopted to fan forward gradually, and the lens core is cut and sucked. 3. Excision of the cortex in the sac and compression of the sclera facilitates the observation and removal of the surrounding cortex. 4. Finally, the lens capsule is removed, and the edge of the capsule can be clipped with the eye. Most of the lens ultrasonic pulverization is similar to the former. Only the second step is to use the ultrasonic pulverizing head; the preset energy varies with the hardness of the core. The operation feature is to start the machine intermittently, continue to smash and attract; the pulverizing head should not be in contact with the filling head in the lens. The remaining capsule and cortex can be removed with a cutting head. complication (1) postoperative bleeding. Appropriate application of hemostatic agents before and after surgery. (2) Retinal detachment. Preoperative and post-examination, those with holes can be closed with argon hormone; those with fibrous cords can retract the retina, vitreous resection can be performed; those with larger holes can be scleral cerclage; vitreous gas injection for macular holes . (3) Endophthalmitis. Apply antibiotics systemically and topically. (4) Sympathetic ophthalmia. 1 try to protect the eyeball, apply a lot of antibiotics and hormones to the whole body and local application; 2 If the eye injury is serious, there is no possibility of recovery of vision. If there is a possibility of sympathetic ophthalmia, the eyeball should be removed immediately.