Effect of phacoemulsification with conjunctival Angle scleral margin tunnel incision on postoperative ocular surface in patients with diabetic cataract

摘要

cqvip:Objective:To study the effect of the conjunctival flap with limbus tunnel incision on change in tear function after phacoemulsification cataract surgery in diabetic cataract.Methods:One hundred and twenty patients with type 2diabetes(120 eyes)were enrolled,The patients were randomly divided into two groups,A:3.0mm clear corneal incision phacoemulsification cataract extraction and intraocular lens(IOL)implantation;sixty patients(60 eyes)in group,B:3.0mm conjunctival flap with limbus tunnel incision phacoemulsification cataract extraction and intraocular lens(IOL)implantation;sixty patients(60 eyes)in group.The difference of demographic characteristics between two groups were insignificant.Theocular surface disease index(OSDI),corneal sensation,break up time(BUT)and corneal fluorescein staining(FL)were examined preoperatively and 1wk,1 and 3mo postoperatively.Results:the OSDI score of group A was significantly higher than those of group B and the differences were statistically significant(P<0.05).The corneal sensation in two groups decreased after operations and the corneal sensation of group A was significantly lower than those of group B after surgery 1 week and 1 month、3month,and the differences were statistically significant(all P<0.05).the BUT in two groups decreased after operations and the BUT of group B was significantly better than those of group A after surgery,and the differences were statistically significant(P<0.05).At 1wk,1 and 3mo postoperatively,the FL score in two groups increased and the FL score of group A was significantly higher than those of group B and the differences were statistically significant(P<0.05).Conclusions:With conjunctival flap limbal tunnel incision,and the tunnel incision into the anterior chamber,closed more general limbal incision closed better,not easy infection and without the stitches,affecting small ocular tear film,This is especially suitable for patients with type 2 diabetes and cataract.It is worthy of clinical application.