Analysis Of Two Different Operations For Late NVG

Objective: To compare the single therapy of cyclocryotherapy and the combinedtherapy of trabeculectomy with cyclocryotherapy for neovascular glaucoma. Methods:The hospital in january2008-2012in October with trabeculectomy combined withcyclocryotherapy (joint group) and cyclocryotherapy (cryogenic group)42cases late NVGmedical records were reviewed retrospectively. Joint group of24cases, cryogenic groupfor18cases. Compared postoperative IOP, visual acuity, and concurrent disease. Results:IOP:The change of IOP in different time points before and after treatment in thetwogroups, treatment factors have interaction with time(P<0.001). IOP in the group ofcomparison: Joint group on IOP in time compared with statistical significance(P<0.001),In two compared with the two results, Except for postoperative1month and6month,3month and6month after comparing is no statistical significance(P>0.05), The rest of thetime point in comparing two IOP were statistically significant(P<0.05). Cryogenic groupon IOP in time compared with statistical significance(P<0.001), In two compared with thetwo results, Each point in time both two comparison IOP was statistically significant(P<0.05). IOP between the group of comparison: Joint group and cryogenic group IOPafter1Week,1month,3months,6months were statistically significant(P <0.05). Visualacuity:joint group: Postoperative visual acuity improved or remained unchanged in19eyes (79.17%),5eyes(20.83%) decreased vision. Cryogenic group: Postoperative visualacuity improved or visual acuity remained unchanged in10eyes(55.56%),8eyes(44.44%)decreased vision. Postoperative complications: joint group: chemosis in24eyes(100%),anterior chamber fibrin exudation in9eyes(37.5%), hyphema in9eyes(37.50%), cornealedema in6eyes(25.00%), shallow anterior chamber in3eyes(12.5%), eye pain in2eyes(8.33%). cryogenic group：chemosis in18eyes(100%), eye pain in7eyes(38.89%),corneal edema in7eyes(38.89%),anterior chamber fibrin exudation in5eyes(27.78%),hyphema in1eyes(5.56%), atrophy of eyeball in1eye (5.56%). Two groups of the eyepain and hyphema had statistical significance in the early postoperative reaction and complications (P<0.05). Anterior chamber fibrin exudation, corneal edema, shallowanterior chamber, atrophy of eyeball had no statistical significance in the earlypostoperative reaction and complications(P>0.05). Surgery success rate: joint group wassuccessfully in18eyes and ineffective in6eyes, a success rate of75.00%. Cryogenicgroup,8successful, invalid for10, the success rate was44.44%, compared the successrate difference between the two groups were statistical significance (P<0.05). Conclusion:In the treatment of neovascular glaucoma, the joint group can effectively reduce thepostoperative IOP and alleviate pain, Maintain good vision, and thus achieve bettertherapeutic effect than the cryogenic group.