Comparison of the Efficacy of Single-incision and Two-incision Posterior Chamber Phakic Intraocularlens Implantation in the Correction of Extreme Myopia / 现代生物医学进展

Objective:To observe and compare the clinical effect of single-incision and two-incision posterior chamber phakic intraocularlens implantation in the correction of extreme myopia.Methods:40 cases(80 eyes) of patients with extreme myopia underwent conventional two-incision posterior chamber phakic intraocularlens implantation in our hospital from January 2011 to June 2013 were selected as the control group and 40 cases(80 eyes) underwent single-incision posterior chamber phakic intraocularlens implantation from July 2013 to January 2016 were selected as observation group.The open hole before and after operation,best corrected visual acuity of vision,operation safety,effectiveness index,diopter (column mirror,equivalent ball for eyeglasses),intraocular pressure,ECD,anterior chamber depth and occurrence of complications were compared between two groups.Results:The uncorrected visual acuity (UCVA) of both groups at 6 months after operation were significantly higher than those before operation (P＜0.05),which was significantly higher in the observation group than that of the control group (P＜0.05);The operation safety and effectiveness index of observation group were significantly higher than those of the control group (P＜0.05);The cylinder and spherical equivalent degree of both groups at 6 months after operation were significantly better than those before operation(P＜0.05),which was significantly better in the observation group than that of the control group(P＜0.05).The corneal endothelial cell counts(ECL) of control group after operation was significantly lower than that before operation (P＜0.05),and no significant difference was found in the ECL of observation group before and after operation (P＞0.05).The ECL of observation group after operation was significantly higher than that of the control group (P＜0.05);The incidence rate of complication in observation group was significantly lower than that of the control group (P＜0.05).Conclusion:Compared with two-incision operation,the single-incision posterior chamber phakic intraocularlens implantation had remarkable clinical effect in the correction of extreme myopia with higher security.

Application of hanging by the feet OAC-CPR in emergency treatment / 中国基层医药

Objective To evaluate the effects of hanging by the feet OAC-CPR in patients with big hemoptysis suffocation and cardiac arrest.Methods 68 cases of big haemoptysis suffocation and cardiac arrest were randomly divided into two groups.The control group(38 cases) was treated by standard CPR treatment method.The study group (30 cases) was treated by hanging by the feet OAC-CPR method.Results Return of spontaneous circulation (ROSC) of study group was obviously higher than that of control group( 80.0％ vs 55.3％,x2 =4.58,P ＜ 0.05 ).24hours survival of study group was obviously higher than that of control group ( 70.0％ vs 44.7％,x2 =4.34,P ＜0.05).Conclusion Hanging by the feet OAC-CPR can do cardiopulmonary resuscitation and air passage clearing simultaneously in emergency treatment more sufficiently and successfully.

Research and Practice of Clinical Teaching of Ophthalmology / 中华医学教育探索杂志

Clinical practice is a key step that students take to become doctors.This paper does research in clinical teaching methods for ophthalmology through analyzing current problem of clinical practice in ophthalmology.In the clinical teaching,we should strength the building up of clinical teachers,stimulate students' interest and activity,take PBL(problem-based learning) into teaching method,make use of the principle of optimization medical care and the evidence-based medicine in clinical practice teaching,strength medical students' legal consciousness and cultivate capability of building up cooperative doctor-patient relationship,and improve quality of clinical teaching.