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1.
Chinese Journal of Experimental Ophthalmology ; (12): 1078-1084, 2022.
Article in Chinese | WPRIM | ID: wpr-955360

ABSTRACT

Objective:To observe the corneal morphology and visual quality after transepithelial photorefractive keratectomy (Trans-PRK) with smart pulse technique (SPT) and 1 050 Hz cutting frequency in the correction of myopia and astigmatism.Methods:A self-controlled case series study was conducted.Sixty five eyes of 33 patients who underwent Trans-PRK surgery in Ineye Hospital of Chengdu University of TCM from July 2017 to June 2018 were followed up for 6 months.The uncorrected visual acuity (UCVA) converted to logarithm of the minimum angle of resolution (LogMAR) unit, best corrected visual acuity (BCVA) (LogMAR), and spherical equivalent (SE) of the subjects were recorded.The anterior corneal surface symmetry index (SI), the anterior corneal surface Q value in the range of 6, 7, 8, and 9 mm diameter, the spherical aberration, coma, trefoil and total higher-order aberration of the anterior corneal surface, the strehl ratio (SR), and the modulation transfer function (MTF) of 10, 20, 30, and 40 c/d in the horizontal and vertical meridian directions before and after surgery were measured with Sirius corneal topography analyzer.The differences of each index among different time points were compared, and the correlation between indexes was analyzed by Pearson correlation analysis.This study followed the Declaration of Helsinki.The study protocol was approved by the Medical Ethics Committee of Ineye Hospital of Chengdu University of TCM (No.2020yh-004). All patients signed the informed consent form before surgery.Results:The average preoperative BCVA and SE were -0.09±0.06 and (-4.24±1.24)D.The mean UCVA and SE at 7 days, 1, 3 and 6 months postoperatively were -0.10±0.08 and (0.03±0.63)D, -0.12±0.06 and (0.08±0.53)D, 1.16±0.06 and (0.02±0.79)D, -0.18±0.05 and (0.08±0.37)D, respectively.The SI at different time points after the surgery were significantly higher than that before operation (all at P<0.05). At 1, 3 and 6 months after surgery, the Q value of anterior corneal surface in different diameter ranges increased from negative to positive, showing statistically significant differences (all at P<0.05). At each time point after surgery, the trefoil and total higher-order aberrations of the anterior corneal surface increased to varying degrees.Coma at 7 days and 6 months after surgery were significantly higher than that before surgery, and spherical aberration at 3 and 6 months after surgery were significantly higher than that before surgery (all at P<0.05). The SR values at 3 and 6 months after operation were significantly higher than that before operation (all at P<0.05). At 6 months after operation, the MTF values at different spatial frequencies of the horizontal meridian and the MTF values at 30 and 40c/d spatial frequencies of the vertical meridian were lower than those before operation, and the differences were statistically significant (all at P<0.05). The correlation analysis showed that the Q value of different diameter ranges was positively correlated with spherical aberration ( r=0.798-0.925, P<0.05), total higher-order aberration ( r=0.596-0.630, P<0.05), SI ( r=0.235-0.303, P<0.05) and corneal ablation depth ( r=0.583-0.659, P<0.05) at 6 months after surgery.SI was positively correlated with spherical aberration ( r=0.307, P<0.05), coma ( r=0.424, P<0.05), total higher-order aberration ( r=0.300, P<0.05), corneal ablation depth ( r=0.227, P<0.05), and eccentric cutting amount ( r=0.281, P<0.05). There was no correlation between SR and aberration, corneal ablation depth, eccentric cutting amount, etc.(all at P≥0.05). Conclusions:Trans-PRK using SPT to correct myopic astigmatism can improve vision, stabilize diopter, enhance retinal imaging quality, increase the asymmetry of the anterior corneal surface, and introduce different degrees of higher-order aberrations.

2.
Chinese Journal of Experimental Ophthalmology ; (12): 489-493, 2020.
Article in Chinese | WPRIM | ID: wpr-865310

ABSTRACT

Objective:To compare the clinical outcome of transepithelial photorefractive keratectomy (TransPRK) using 1 050 Hz ablation frequency and intelligent pulse technique (SPT) and small incision lenticule extraction (SMILE) for myopia and astigmatism.Methods:A cohort study was performed.Eighty-five eyes of 43 patients who received TransPRK for myopia and 85 eyes of 46 patients who received SMILE for myopia in the Ineye Hospital of Chengdu University of TCM were enrolled from August 2017 to April 2018.The follow-up duration was 6 months.The changes of visual acuity and diopter were observed and compared before and after operation, and the predictability, stability, safety, effectiveness and long-term vision were compared between the different surgeries.This study complied with the Declaration of Helsinki and the study protocol was approved by the Ethics Committee of Ineye Hospital of Chengdu University of TCM.Results:The refractive power tended to be emmetropic and relatively stable in the TransPRK group, and the refraction varied from mild hyperopia to emmetropic gradually during 6 months after SMILE.There was no significant difference in the spherical equivalent (SE) between the two groups before and after operation (all at P>0.05). No significant difference was found in mean validity index between the two groups at 6 months after surgery (1.189±0.248 vs.1.120±0.205; t=1.862, P=0.065). The uncorrected visual acuity (UCVA) in the SMILE group was significantly higher than that in the TransPRK group at 7 days and 1 month after surgery ( P<0.05), and there was no significant difference in UCVA between the two groups at 3 months and 6 months after surgery ( P>0.05). The safety index at 6 months after surgery in the TransPRK group was 1.209±0.222, which was significantly higher than 1.143±0.178 in the SMILE group, with a significant difference between the two groups ( t=2.024, P=0.045). Conclusions:The predictability, stability, safety, effectiveness and long-term vision are good after TransPRK with SPT and SMILE for myopia and astigmatism.The safety index is better in TransPRK compared with SMILE, and the restoration of vision is faster after SMILE than that after TransPRK.

3.
China Pharmacy ; (12): 3394-3396, 2017.
Article in Chinese | WPRIM | ID: wpr-607086

ABSTRACT

OBJECTIVE:To systematically evaluate the therapeutic efficacy and safety of perospirone versus risperidone in the treatment of schizophrenia,and to provide evidence-based reference for clinical treatment.METHODS:Retrieved from Wanfang database,VIP,CJFD,CBM and PubMed,randomized controlled trials (RCTs) of perospirone(trial group) vs.risperidone (control group) in the treatment of schizophrenia were collected.After data extraction and quality evaluation of included studies according to modified Jadad evaluation criteria,Meta-analysis of response indexes was performed by using Rev Man 5.0 statistical software.RESULTS:A total of 12 RCTs were included,involving 1 050 patients.Results of Meta-analysis showed,the cure rate of 2 groups had no statistical significance [OR=0.99,95%CI(075,1.30),P=0.93].The incidences of extrapyramidal reactions [OR=0.63,95%CI(0.43,0.92),P=0.02],the incidences of prolactin levels increasing [OR=0.23,95%CI(0.14,0.38),P<0.001] and the incidences of weight gain [OR=0.23,95%CI(0.13,0.39),P<0.001] in control group were significantly higher than trial group,with statistical significance (P<0.05).CONCLUSIONS:The therapeutic efficacy of perospirone and risperidone is similar in the treatment of schizophrenia,but the safety of perospirone is better than that of risperidone.

4.
Drug Evaluation Research ; (6): 400-405, 2017.
Article in Chinese | WPRIM | ID: wpr-513972

ABSTRACT

Objective To evaluate the therapeutic effect and safety of tandospirone and buspirone in the treatment of generalized anxiety disorder.Methods The clinical control study oftandospirone and buspirone in the treatment of generalized anxiety disorder was earched by PubMed,CBM,CNKI,VIP,and Wanfang Data,with deadline from January 2000 to June 2016.Meta-analysis was carried out using RevMan5.0 software to each effect index.Results A total of seven RCTs were included involving 615 patients were identified.Meta-analysis showed that the significant efficiency rate[P=0.34,OR=1.19,95%CI (0.83~1.69)] and HAMA[P=0.80,MD=-0.08,95%CI (-0.72~0.56)] of tandospirone and buspirone had no significant difference.Two groups of adverse drug reactions,dizzy,dry,constipine,insomnia,anorexia,and nausea had no significant difference (P>0.05).Conclusion The efficacy and adverse reaction oftandospirone and buspirone in the treatment of generalized anxiety disorder are fairly.

5.
China Pharmacy ; (12)1991.
Article in Chinese | WPRIM | ID: wpr-523950

ABSTRACT

OBJECTIVE:To investigate the effects of selenium(Se)and/or vitamin E(VE)on the NO and NOS in heart,liver,kidney and serum of experimental hyperlipidemic rats.METHODS:SD rats were divided into5groups,administreated by Se and/or VE.After4weeks,the NO contents and NOS activities in heart,liver,kidney and serum were assayed by NO kit and NOS kit respectively.RESULTS:NO contents and NOS activities could be reduced in heart,liver,but increased in serum and kidney by high-fat feed(HFF).Meanwhile,VE and/or Se could increase the NO contents in all the experimental samples and NOS activities in heart,liver and kidney(P

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