| Objection: Research axial high myopia patients with cataract,cataract patients with type 2diabetes and simple cataract ultrasonic emulsification cataract surgery in patients with posterior capsular opacity of different time periods and three groups of patients with YAG laser posterior capsular opacity in the macular area before and after treatment the changes of microstructure,analysis of different time axial high myopia and cataract surgery for type 2diabetes affects the occurrence and development of posterior capsular opacity,respectively,on patients with different types of posterior capsule after laser treatment of macular area structure changes,thus improve the posterior capsular opacity occurred on different types of cataract surgery and treatment of understanding,provide certain guidance for clinical.Methods:In this study,309 patients(370 eyes)who met the admission criteria after cataract Phaco+IOL implantation in our hospital were collected from March 2018 to September 2018.According to the time after cataract surgery,they were divided into group A(6-18 months after surgery)and group B(18-30 months).The two groups were further divided into:Group A: simple cataract group(no ocular and systemic disease,ocular axial length is 22 to 26 mm)46 cases(55 eyes)with cataract,type 2 diabetes group(diabetic retinopathy or non proliferation,ocular axial length is 22 to 26 mm)59 patients(68 eyes),axial high myopia cataract group(ocular axial length 26 mm or higher)30 cases(41 eyes);Group B: simple cataract group(no ocular and systemic disease,ocular axial length is 22 to 26 mm)in 64cases(73 eyes)with cataract,type 2 diabetes group(diabetic retinopathy or non proliferation,ocular axial length is 22 to 26 mm)in 76 cases(87 eyes),axial high myopia cataract group(ocular axial length 26 mm or higher)34 cases(46 eyes).The posterior capsular opacification(PCO)degree of each group was observed by slit lamp,and the PCO incidence and incidence degree of patients with different types of cataract after group A and B were respectively compared.A,B two groups of patients with PCO levels of grade 2 or more lines of YAG laser cut of the posterior capsule,all laser treatment of patients can be divided into simple cataract laser group,type 2 diabetes cataract laser,laser axial high myopia cataract group,using the frequency domain optical coherence tomography(SD-OCT)check each line of YAG laser to treat patients with preoperative(1 d)1 day,1 day(1 d)after operation,postoperative 1 week(1 w),postoperative 1 month(1 m)and march(3 m)postoperative macular center concave center(CST)and macular retinal thickness thickness(SFCT)choroid.All the above data were analyzed by chi-square test,one-way anova,nonparametric test(rank sum test)of multiple independent samples,repeated measurement anova and other statistical methods,and SPSS25.0 statistical software was used for statistical analysis.Results:There were no significant differences in gender,age and eye sex between group A and group B.In the 6-18 months after surgery(group A),the PCO incidence was P simple=10.91%,P diabetes =16.18%,and P myopia =39.02%,respectively.Non-parametric tests with multiple independent factors were applied,and significant differences were found in the grading degree between different types of groups in group A(P=0.003,P<0.05;).There was a significant difference between the axial high myopia group and the simple cataract group(Z=6.850;P(mono-myopia)=0.003);There were significant differences between the axial high myopia group and the diabetic cataract group(Z=6.564;P(sugar-myopia)=0.017);There was no significant difference between the diabetic group and the cataract group(Z=6.020;P(monosaccharide)=1.000).In the 18-30 months after surgery(group B),the PCO incidence was P =16.44%,P diabetes =31.03%,P myopia =45.65%.There were significant differences in the grading degree between different cataract groups(P=0.001,P<0.05;).,there was a significant difference between the axial high myopia group and the simple cataract group(Z=8.876;P(single-myopia)=0.001),there was a significant difference between the diabetes group and the cataract group(Z=7.484P(monosaccharide)=0.044),there was no significant difference between the diabetic group and the axial myopia cataract group(Z=8.596;P(sugar-myopia)=0.360).After YAG laser posterior capsular resection,the CST and SFCT of the three groups showed a slight upward trend at each time point 1 day,1 week and 1 month after surgery,and a downward trend from 1 month to 3months after surgery,which tended to be preoperative.However,there was no statistical significance between the three groups(P<0.05).Conclusion:1.6-18 months after cataract surgery,PCO patients with axial high myopia had the highest incidence,followed by type 2 diabetic patients.Furthermore,the degree of opacification in PCO patients with axial high myopia was significantly higher than that in diabetic patients and patients with simple cataract.2.18-30 months after cataract surgery,the PCO incidence of patients of different types increased.However,the degree of haze in patients with axial high myopia and type 2 diabetic patients was significantly higher than that in patients with simple cataract.3.In the early stage after cataract surgery,axial high myopia may accelerate the occurrence and development of PCO.4.In the later stage after cataract surgery,tepe 2 diabetes and axial high myopia may aggravate the occurrence and development of PCO to some extent.5.YAG lasercapsulotomy has no obvious effect on the structure of macula,and is safe. |
PDF Full Text Request