The relative factors analysis and management for high intraoc- ular pressure following phacoemulsification.

Abstract

Objective To probe into the reasons of postoperative high intraoeular pressure following phaeoemulsification and analyze to different treatment methods that summarizes. Methods 1094 eases （ 1482 eyes） who had undergone phaeoemulsification and intraoeular lens implantations in our hospital from January of 2003 to December of 21）07 were observed. The eyes following high intraocular pressure in early days were classified according to different reasons atnd divided into a medication group and decompression of anterior chamber group according to the treatment method. Restilts 39 eyes in our eases took place the high intraoeular pressure in early days after operations, incidence was 2.63%. The range of high intraoeular pressure was 21 - 60 mmHg （ 1 mmHg = 0. 133 kPa）. All of eyes with high intraocular pressure presented residual viscoelastic substance and postoperative severe reaction in anterior chamber. In decompression of anterior chamber group, the intraocular pressure was controlled at normal level by one time decompressing procesure in 22 eyes （78.57%） and in one postoperative day in all of 28 eyes. In medication group, intraocular pressure in 11 eyes dropped gradually and returned to normal in postoperative 3 days. Conclusion Residual viscoelastic substance and postoperative severe reaction in anterior chamber were responsible for causing postoperative transient intraocular pressure elevated following phaeoemulsification. It is a simple, safe, effective therapeutic method to decompress anterior chamber by aside incision. Key words: cataract ; phaeoemulsification ; intraocular pressure ; management