Clinical observation and analysis of the change of intra-ocular pressure after cataract surger in high myopic eye

Objective To investigate the change of intraocular pressure (IOP) after phacoemulsification with IOL implantation surgery for cataract patients with high myopia. Methods Fifty one cases (55eyes) (group Ⅰ ) of senile cataract and 21 casas (33 eyes) (group Ⅱ )with cataract and high myopia had undergone phacoemulsification and IOL implantation respectively. Vision including uncorrected and corrected visual acuity, IOP, postoperative complications and fandus were observed and compared between the two groups. Results Postoperative vision better than 0.3 accounted for 90.91% in group Ⅰ , and 60.61% in group Ⅱ. Fine vision was got in both groups, but there was significant difference and comared between them.Preoperative IOP was normal in both groups and there was no significant difference between them (P ＞0.05 ). There was no significant difference between preoperative IOP and postoperative IOP at 1 day, 1 week and 1 month after operation in group Ⅰ (P ＞ 0.05 ). In group Ⅱ , IOP 1 day after operation was significantly higher than preoperative ( P ＜0.05 ), and significantly higher than IOP 1 month after operation ( P ＜ 0.05 ).But there was no significant difference between IOP 1 day after operation and 1 week after operation in group Ⅱ (P ＞ 0.05). Compared IOP 1 day, 1 week and 1 month after operation in group Ⅰ with those of group Ⅱ respectively,there was no significant difference(P ＞ 0.05). Conclusion Phacoemulsification and IOL implantation is a kind of effective method for cataract with high myopia. But perfect surgical techniques are necessary. Phacoemulsification and IOL implantation is probably a motivation of secondary open-angle glaucoma for cataract with high myopia after operation. It is necessary to monitor the change of IOP perioperatively and to control it in time. Key words: cataract;  high myopia;  phacoemulsification;  intraocular pressure