Dilating Pupil During Cataract IOL Surgery
Narrative Responses:
Purpose
To evaluate the use, safety and the appropriate technique of using intra cameral lignocain and epinephrine to dilate the pupil for cataract and IOL implant surgery. A well dilated pupil is an important pre requisite of safe cataract IOL implant surgery.
Methods
A total of 45 patients male and female were included in this study. The study is observational and interventional study.Patients had a complete systemic and ophthalmic evaluation and informed consent obtained. Lignocain 1% was instilled into the anterior chamber and after a waiting period a dilute solution of adrenaline was irrigated into the anterior chamber. Within 30-90 seconds the pupil dilated well. This facilitated the phacoemulsification of the lens, safe removal of the cortex with clean capsular bag and implant of the PC IOL in the capsular bag as the pupil remained dilated throughout the procedure.
Results
With this technique of dilation of pupil during surgery is quick and reliable if followed carefully. The pupil remained well dilated throughout the procedure. Not only it provides good pupil dilation it gives good intra ocular anesthesia .It appears to be safe in patients having hypertension and diabetes mellitus as patients with these co morbid conditions are difficult to dilate.
Conclusion
This technique of dilating pupil for cataract IOL implant surgery appears to be a valuable addition to the already existing techniques of pupil dilation for intraocular surgical procedures mainly cataract surgery and other vitreoretinal procedures which need a good pupil dilation during the surgical procedure.