Clinical And Pathological Study Of The Effects Of New Type Cataract Surgery Combined With Sclera Cautery On Incision Heal And Postoperative Astigmatism

No phaco and non-stitch cataract surgery combined with IOL implantation is an advanced surgery skill .The main factors which affect the shape of the cornea are the structure, location, and length of the incision in the cataract surgery. Sclera cautery is one of the regular steps of the new type cataract surgery, which could stop the hemorrhage during the surgery, produce adhesion in the local surgery area, strengthen and stabilize the incision, and avoid exudates and hemorrhage. We apply computer-assisted corneal topography to study both groups during different period postoperatively, and discuss the effects and regularity of the postoperative astigmatism produced by sclera cautery within 3 month after the surgery. We also apply AgNORs to express the activity of fibroblast, which could analysis the healing process after the cataract surgery of both cautery group and the control group. The results were demonstrated as follows: 1. It had no statistic significance in both groups postoperatively when the surgically induced astigmatism were analysesed by direct subtract and Jaff e method (P>0. 05). But the surgery induced astigmatism decreased step by step postoperatively, and the SIA in cautery group was even smaller than the control group.2.In the axial analyses of the surgically induced astigmatism, against the rule astigmatism accounted for 54. 55% of all the patients in both groups. The number of with the rule patients increased 1 day postoperatively, but the number of against the rule patients became more and moreafter on and surpassed the pre-operative patients. It had statistic significance when referred to axis changes (P<0.05).3. The average number of black dots in 100 fibroblasts in sclera cautery group had no statistic significance as compared with the control group postoperatively (P>0. 05) The area percentage of nucleolus accounts for the whole cell nuclear had statistic significance when the tow group were compared (P<0.05). But the average optical density was higher in the sclera group when compared with the control group 7 days after the surgery. It had statistic significance (P<0. 05). But it had no statistic significance in any other periods in both groups (P>0.05).In general, sclera cautery was one of the regular steps of the new type cataract surgery, which could stop the hemorrhage during the surgery, produce adhesion in the local surgery area, strengthen the incision, and avoid exudates and hemorrhage. It could activate the f ibroblast and improve the incision healing. The sclera cautery could subtract the against the rule astigmatism by producing the with the rule astigmatism. It was safe and effective in clinic, and no inflammatory responses were observed.