AIM： To evaluate the efficacy of selective laser trabeculoplasty（SLT） in glaucomatous eyes with previous incisional glaucoma surgery. METHODS： A retrospective cohort of eyes that underwent SLT at a single institut...AIM： To evaluate the efficacy of selective laser trabeculoplasty（SLT） in glaucomatous eyes with previous incisional glaucoma surgery. METHODS： A retrospective cohort of eyes that underwent SLT at a single institution from 2013-2015 were followed for 1 y. Reduction in intraocular pressure（IOP） following SLT was evaluated in eyes with prior trabeculectomy with Ex Press mini shunt（Alcon, Ft Worth, TX, USA）, Ahmed valve（New World Medical, Cucamonga, CA, USA）, or combined phacoemulsification-trabeculectomy. A control group was included with eyes without prior surgery that underwent SLT. Success was defined as 〉20% drop in IOP from pre-SLT baseline. RESULTS： One-hundred and six eyes were included with 53 in both the prior glaucoma surgery（PGS） and no prior glaucoma surgery（NPGS） groups. Mean pre-SLT IOP was 19.2±4.3 and 20.6±6.0 mm Hg for PGS and NPGS groups, respectively（P=0.17）. Both groups produced statistically significant IOP reductions at 1 and 6 mo（P〈0.04）. At 6 mo, mean IOP reduction reached 7.3% and 10.8% for the PGS and NPGS groups, respectively（P=0.42）. Overall, 27.9% and 31.7% of eyes in PGS and NPGS groups met success criteria at 1 y（P=0.70）. In the PGS group, eyes with baseline IOP ≥21 mm Hg had IOP reductions of 18.1%（P〈0.001）, 16.7%（P〈0.01）, and 8.4%（P=0.31） compared to eyes with baseline IOP 〈21 mm Hg who had IOP reductions of 2.3%（P=0.39）, 3.4%（P=0.19）, and 1.1%（P=0.72） at 1, 6 mo, and 1 y, respectively. CONCLUSION： SLT is efficacious in eyes with prior incisional glaucoma surgery and results in similar IOP reductions compared to eyes without PGS. A larger IOP reduction is observed following SLT in eyes with higher pre-SLT IOP.展开更多
Braking system is one of the most critical parts in a vehicle,and one of the main components of this system is brake booster valve body which plays a significant role in safety standards of the vehicle.The working con...Braking system is one of the most critical parts in a vehicle,and one of the main components of this system is brake booster valve body which plays a significant role in safety standards of the vehicle.The working conditions under the hood of the vehicle necessitate the valve body to have some special properties.This component should have high mechanical strength and the ability to maintain this strength at elevated temperatures.On the other hand,lower weight and lower cost are always desirable in industries.The material selection for the valve body is very important and should satisfy the aforementioned requirements.In order to select the best material for a large number of alternatives considering many different criteria,multi criteria decision making(MCDM) methods are used in this study.The weighting of criteria is carried out by entropy and analytic hierarchy process(AHP) methods and a combination of these two techniques are used as the final weights.MOORA,TOPSIS and VIKOR methods are used in this paper for selecting the best material for braking booster valve body.The alternative materials were ranked using these methods and the results of the analysis were compared using Spearman’s rank correlation.PET-gf35(PET reinforced with 35 wt% glass fiber) was found to be the best material for the valve body.Owing to the desirability of the results,the results of this study can be used in automotive industry in order to enhance the material selection process.展开更多
文摘AIM： To evaluate the efficacy of selective laser trabeculoplasty（SLT） in glaucomatous eyes with previous incisional glaucoma surgery. METHODS： A retrospective cohort of eyes that underwent SLT at a single institution from 2013-2015 were followed for 1 y. Reduction in intraocular pressure（IOP） following SLT was evaluated in eyes with prior trabeculectomy with Ex Press mini shunt（Alcon, Ft Worth, TX, USA）, Ahmed valve（New World Medical, Cucamonga, CA, USA）, or combined phacoemulsification-trabeculectomy. A control group was included with eyes without prior surgery that underwent SLT. Success was defined as 〉20% drop in IOP from pre-SLT baseline. RESULTS： One-hundred and six eyes were included with 53 in both the prior glaucoma surgery（PGS） and no prior glaucoma surgery（NPGS） groups. Mean pre-SLT IOP was 19.2±4.3 and 20.6±6.0 mm Hg for PGS and NPGS groups, respectively（P=0.17）. Both groups produced statistically significant IOP reductions at 1 and 6 mo（P〈0.04）. At 6 mo, mean IOP reduction reached 7.3% and 10.8% for the PGS and NPGS groups, respectively（P=0.42）. Overall, 27.9% and 31.7% of eyes in PGS and NPGS groups met success criteria at 1 y（P=0.70）. In the PGS group, eyes with baseline IOP ≥21 mm Hg had IOP reductions of 18.1%（P〈0.001）, 16.7%（P〈0.01）, and 8.4%（P=0.31） compared to eyes with baseline IOP 〈21 mm Hg who had IOP reductions of 2.3%（P=0.39）, 3.4%（P=0.19）, and 1.1%（P=0.72） at 1, 6 mo, and 1 y, respectively. CONCLUSION： SLT is efficacious in eyes with prior incisional glaucoma surgery and results in similar IOP reductions compared to eyes without PGS. A larger IOP reduction is observed following SLT in eyes with higher pre-SLT IOP.
文摘Braking system is one of the most critical parts in a vehicle,and one of the main components of this system is brake booster valve body which plays a significant role in safety standards of the vehicle.The working conditions under the hood of the vehicle necessitate the valve body to have some special properties.This component should have high mechanical strength and the ability to maintain this strength at elevated temperatures.On the other hand,lower weight and lower cost are always desirable in industries.The material selection for the valve body is very important and should satisfy the aforementioned requirements.In order to select the best material for a large number of alternatives considering many different criteria,multi criteria decision making(MCDM) methods are used in this study.The weighting of criteria is carried out by entropy and analytic hierarchy process(AHP) methods and a combination of these two techniques are used as the final weights.MOORA,TOPSIS and VIKOR methods are used in this paper for selecting the best material for braking booster valve body.The alternative materials were ranked using these methods and the results of the analysis were compared using Spearman’s rank correlation.PET-gf35(PET reinforced with 35 wt% glass fiber) was found to be the best material for the valve body.Owing to the desirability of the results,the results of this study can be used in automotive industry in order to enhance the material selection process.
