AIM：To compare the speed of visual recovery following myopic thin-flap LASIK with four femtosecond lasers.METHODS：Eighty-eight eyes of 46 patients who were consecutively scheduled for bilateral LASIK with the Intra ...AIM：To compare the speed of visual recovery following myopic thin-flap LASIK with four femtosecond lasers.METHODS：Eighty-eight eyes of 46 patients who were consecutively scheduled for bilateral LASIK with the Intra Lase FS60（Group 1）,Femto LDV Crystal Line（Group 2）,Wavelight FS200（Group 3）and Visu Max（Group 4）femtosecond lasers were enrolled in.Monocular uncorrected distance visual acuity（UDVA）,best-corrected distant visual acuity（CDVA）,refraction,contrast sensitivity and higher-order aberrations（HOAs）were evaluated at 1,3d,1wk and 1mo postoperatively.RESULTS：Sixteen eyes（72.7%）achieved 20/16 and 8eyes（36.4%）were 20/12.5 at 1d in Group 2,which was significantly more than other 3 groups.At 1wk,20 eyes（90.9%）achieved 20/16 in Groups 2 and 4.At 1mo,20 eyes（90.9%）achieved 20/16 in Group 2 and Group 4,which were significantly more than other two groups.While by1 mo,the difference of the residual spherical equivalent（SE）was not statistically significant among 4 groups（P=0.121）.The induction of spherical aberration（SA）were significantly less for Groups 2,3,4 than for Group 1 one day after surgery（P=0.015）.The differences among 4groups were not statistically significant before and after surgery on every time points（all P〉0.05）.CONCLUSION：The thin-flap LASIK procedure using the Femto LDV Crystal Line and Visu Max femtosecond laser show faster visual performance recovery.展开更多
An integration processing system of three-dimensional laser scanning information visualization in goaf was developed. It is provided with multiple functions, such as laser scanning information management for goaf, clo...An integration processing system of three-dimensional laser scanning information visualization in goaf was developed. It is provided with multiple functions, such as laser scanning information management for goaf, cloud data de-noising optimization, construction, display and operation of three-dimensional model, model editing, profile generation, calculation of goaf volume and roof area, Boolean calculation among models and interaction with the third party soft ware. Concerning this system with a concise interface, plentiful data input/output interfaces, it is featured with high integration, simple and convenient operations of applications. According to practice, in addition to being well-adapted, this system is favorably reliable and stable.展开更多
Dear Editor,Coma, the vegetative state （VS）, and the minimally- conscious state （MCS）, often collectively referred to as disorders of consciousness （DOCs）, typically occur after severe traumatic or non-traumatic...Dear Editor,Coma, the vegetative state （VS）, and the minimally- conscious state （MCS）, often collectively referred to as disorders of consciousness （DOCs）, typically occur after severe traumatic or non-traumatic brain injury [1]. The boundary between awareness and unawareness remains elusive, making it difficult to correctly distinguish MCS from VS patients. It is possible to employ noninvasive neuroimaging techniques, such as functional MRI （fMRI） [2] to assess residual cognitive processing as well as consciousness. However, the causal link between neural activity in specific brain areas and specific behavioral tasks is hard to dissect using fMRI [3]. Therefore, detecting residual cognitive function and consciousness in patients surviving severe brain injury remains extremely challenging.展开更多
文摘AIM：To compare the speed of visual recovery following myopic thin-flap LASIK with four femtosecond lasers.METHODS：Eighty-eight eyes of 46 patients who were consecutively scheduled for bilateral LASIK with the Intra Lase FS60（Group 1）,Femto LDV Crystal Line（Group 2）,Wavelight FS200（Group 3）and Visu Max（Group 4）femtosecond lasers were enrolled in.Monocular uncorrected distance visual acuity（UDVA）,best-corrected distant visual acuity（CDVA）,refraction,contrast sensitivity and higher-order aberrations（HOAs）were evaluated at 1,3d,1wk and 1mo postoperatively.RESULTS：Sixteen eyes（72.7%）achieved 20/16 and 8eyes（36.4%）were 20/12.5 at 1d in Group 2,which was significantly more than other 3 groups.At 1wk,20 eyes（90.9%）achieved 20/16 in Groups 2 and 4.At 1mo,20 eyes（90.9%）achieved 20/16 in Group 2 and Group 4,which were significantly more than other two groups.While by1 mo,the difference of the residual spherical equivalent（SE）was not statistically significant among 4 groups（P=0.121）.The induction of spherical aberration（SA）were significantly less for Groups 2,3,4 than for Group 1 one day after surgery（P=0.015）.The differences among 4groups were not statistically significant before and after surgery on every time points（all P〉0.05）.CONCLUSION：The thin-flap LASIK procedure using the Femto LDV Crystal Line and Visu Max femtosecond laser show faster visual performance recovery.
基金Project(51274250)supported by the National Natural Science Foundation of ChinaProject(2012BAK09B02-05)supported by the National Key Technology R&D Program during the 12th Five-year Plan of China
文摘An integration processing system of three-dimensional laser scanning information visualization in goaf was developed. It is provided with multiple functions, such as laser scanning information management for goaf, cloud data de-noising optimization, construction, display and operation of three-dimensional model, model editing, profile generation, calculation of goaf volume and roof area, Boolean calculation among models and interaction with the third party soft ware. Concerning this system with a concise interface, plentiful data input/output interfaces, it is featured with high integration, simple and convenient operations of applications. According to practice, in addition to being well-adapted, this system is favorably reliable and stable.
基金supported by the Guangdong Provincial Natural Science Foundation(2015A030313609)the Guangzhou Municipal Project for Science and Technology Foundation(201508020253)
文摘Dear Editor,Coma, the vegetative state （VS）, and the minimally- conscious state （MCS）, often collectively referred to as disorders of consciousness （DOCs）, typically occur after severe traumatic or non-traumatic brain injury [1]. The boundary between awareness and unawareness remains elusive, making it difficult to correctly distinguish MCS from VS patients. It is possible to employ noninvasive neuroimaging techniques, such as functional MRI （fMRI） [2] to assess residual cognitive processing as well as consciousness. However, the causal link between neural activity in specific brain areas and specific behavioral tasks is hard to dissect using fMRI [3]. Therefore, detecting residual cognitive function and consciousness in patients surviving severe brain injury remains extremely challenging.
