The Clinical Research Of1.8mm Coaxial Micro Incision Phacoemulsification With Intraocular Lens Implantation

ObjectiveIn this study, by observation of clinical effects of1.8mm coaxial micro-incisionphacoemulsification and intraocular lens implantation, and to compare the clinical effect ofthe traditional3.2mm coaxial small-incision phacoemulsification surgery for clinical workand research objective information.MethodSelect age-related cataract patients96cases (120), aged45to75years old, lens opacitygraded as grade Ⅱ~Ⅳ, were randomly divided into two groups, each group of60. GroupⅠ line1.8mm coaxial micro-incision phacoemulsification and small-incision phacoemulsi-fication and intraocular lens implantation in addition to the joint Akreos MI60II groupunderwent traditional3.2mm suction joint the Akreos AO intraocular lens implantation. Allpatients were using Bausch&Lomb’s Stellaris phacoemulsification equipment, surgery iscompleted by the same surgeon, intraoperative record average phacoemulsification time,phacoemulsification energy and liquid perfusion. Preoperative and postoperative1day,1week,1month after surgery and after3months were observed follow-up. Preoperative andpostoperative uncorrected visual acuity, refraction, corneal topography, corneal endothelialcell count testing, postoperative uncorrected visual acuity, refraction, corneal astigmatismchange, corneal endothelial cell count, nearly point intended to regulate contrast sensitivityand surgery concurrent the observation of the disease.ResultThe mean phacoemulsification time (EPT), phacoemulsification energy and liquidperfusion, a significant difference (P <0.01), group Ⅰ were better than group Ⅱ, thecomparison between the two groups IV-class nuclear was no significant difference (P>0.05). GroupⅠ after1day and1week uncorrected visual acuity than group Ⅱ, resultingin significant differences (P <0.001), Ⅳ grade nuclear uncorrected visual acuity betweenthe two groups no significant difference (P>0.05). There are significant differences (P<0.01). After1day and1week of corneal astigmatism values of group Ⅰ astigmatismsignificantly less than group II,1month and3months after surgery was no significant difference (P>0.05). Postoperative astigmatism value in the same group, groupⅠwerecompared with preoperative non-significant difference (P>0.05), Group II after1day and1week, corneal astigmatism has increased compared to preoperative results significantdifference (P <0.01).1month and3months after surgery no significant difference (P>0.05). Pseudophakic accommodation between the two groups intended to adjust the forcesignificant difference (P<0.001). Group Ⅰ ability to regulate significantly better than groupⅡ.After1week corneal endothelial cell count between the two groups aredifferent (P <0.05). Group Ⅰ corneal endothelial cell count before and after surgery, nosignificant difference (P>0.05), group II corneal endothelial cell count after a decreasecompared with the preoperative (P <0.05). Postoperative contrast sensitivity after1mouthand3mouths between the two groups no significant difference(P<0.05). Contrast sensi-tivity in the same group, compared with postoperative1month and3mouths postop-eratively increased (P <0.05), groupⅠwere better than group II. Group II after1month and3months there was no significant difference (P>0.05). Only after lens nuclear hardness IVgrade in the two groups had mild corneal edema, anterior chamber a small amount ofexudation.Conclusions1.8mm coaxial small-incision phacoemulsification cataract surgery effectivelyshortened the phacoemulsification time, the ultrasonic energy savings, a more stable anteriorchamber, smaller corneal trauma surgery, to further improve the security of the operation.The tiny incision better control of the surgery induced astigmatism, can rapidly improvevisual acuity. Ability to regulate intraocular lens after surgery is significantly closer to thephysiological lens. With time, the contrast sensitivity improved significantly.