The Study Of Elevated Intraocular Pressure And Some Related Factors In The Same Day After Phacoemulsification Of Cataract

1. Part OneClinical investigation of elevated intraocular pressure on the same day afterphacoemulsification of cataractAbstract Objective To investigate and analyse the increased intraocular pressure (IOP) on the same-day after uneventful phacoemulsification (phaco) of cataract. To discuse its mechanism in order to improve the clinical work. Methods 200 patients (eyes) of uneventful phacoemulsification of cataract were divided into two groups. In group A 2% methyl cellulose was used and in group B hyaluronic acid (HA) was used. The IOP was observed and analysed before operation and 4-8 hours and 24 hours postoperatively. Results The incidence of average increased IOP is 35.56%, 46% in methyl cellulose group and 25% in HA group It is significantly different statistically (P<0.01). The peak of IOP is at 4-8 hours after surgery and the highest IOP is 43.00 mmHg. Conclusion Elevation of IOP can occur on the same day after uneventful phaco. The incidence is 35.56%. So special attention should be paid to observe the IOP in the early postoperative period, especially 4-8 hours after operation. It is imperative to select high quality viscoelastic materials and to observe closely the change of IOP on the same day after phaco for those patients with complicated cataract, optic disc morbidity and retinal diseases...