Phacoemulsification under small pupil.

Objective To search the technique of phacoemulsification under the state of small pupil and some points that should be paid attention to.Methods 86 cases (98 eyes) of phacoemulsification in our hospital in recent three years were observed.The operation methods included surface anaesthesia (anterior chamber anaesthesia was used when iris seperation was needed),scleral tunnel incision,iris hook was used to burst through iris by left hand and continous curvilinear capsulorhexis,emulsification and aspiration by right hand.At last implantion of intraocular lens.Results 88 eyes preserved previous condition, 4 eyes recovered to ordinary light refection,6 eyes appeared distortion of pupil.All of those cases had been implanted IOL.One week after operation,46 eyes(46.9%)had uncorrected vision 0.5,89 eyes (90.8%)0.1.The main factors that influenced the vision were diseases of vitrous and retina.There was no serious complication.6 eyes appeared posterior capsule rupture.5 eyes had damnification of pupil,6 eyes corneal edema,but disappeared five days after operation.Conclusion It is unnecessary to cut iris using this sort of method of phacoemulsification and had some advantages such as less damnification,operating conveniently.After operation,vision and pupil recover well.Except that,this method demands surgeons with better experience of phacoemulsification.