BACKGROUND AND OBJECTIVE: To examine a new highresolution kinetic mapping meth od for scotoma in age-related macular degeneration. PATIENTS AND METHODS: A com puter based program for kinetic visual field mapping was t...BACKGROUND AND OBJECTIVE: To examine a new highresolution kinetic mapping meth od for scotoma in age-related macular degeneration. PATIENTS AND METHODS: A com puter based program for kinetic visual field mapping was tested in 10 healthy su bjects and 14 patients with age-related macular degeneration and fixed preferre d retinal locus. The stimulus was presented using a back projector on a screen l ocated 40 cm from the subject. The findings were then compared with static resul ts. RESULTS:Control group mapping revealed good congruency with the anatomic bli nd spot. Mapping of the 14 patients with age-related macular degeneration was r apid and revealed good accuracy. The average deviation of the mapping border from the a natomic scotoma border was no more than 3.1%of the scotoma radius. Static mappi ng of 7 of the patients with age-related macular degeneration was longer and re vealed lower accuracy. CONCLUSIONS: The proposed method is more rapid, accurate, and consistent than static mapping. It allows accurate mapping of central scoto ma with suprathreshold stimulus, and may be used in the future for detecting the early stages of age-related macular degeneration using subthreshold stimulus.展开更多
The problem of strong uniqueness of best approximation from an RS set in a Banach space is considered. For a fixed RS set G and an element x∈X , we proved that the best approximation g * to x from ...The problem of strong uniqueness of best approximation from an RS set in a Banach space is considered. For a fixed RS set G and an element x∈X , we proved that the best approximation g * to x from G is strongly unique.展开更多
SUN MARK 桑玛克隔热纸全系列产品,皆经过专业工程师精心设计,出厂前需通过严格的品管与测试,并采用航天科技所需的钛镍特殊合金、耐高温的隔热金属材质制成,具有一般色纸5～8倍以上的隔热能力,可有效降温、增加冷房效率;透视性佳、防...SUN MARK 桑玛克隔热纸全系列产品,皆经过专业工程师精心设计,出厂前需通过严格的品管与测试,并采用航天科技所需的钛镍特殊合金、耐高温的隔热金属材质制成,具有一般色纸5～8倍以上的隔热能力,可有效降温、增加冷房效率;透视性佳、防爆效果强。所有产品皆有6年品质保障,产品齐全,多样化的选择,满足不同车主的个人需求。展开更多
文摘BACKGROUND AND OBJECTIVE: To examine a new highresolution kinetic mapping meth od for scotoma in age-related macular degeneration. PATIENTS AND METHODS: A com puter based program for kinetic visual field mapping was tested in 10 healthy su bjects and 14 patients with age-related macular degeneration and fixed preferre d retinal locus. The stimulus was presented using a back projector on a screen l ocated 40 cm from the subject. The findings were then compared with static resul ts. RESULTS:Control group mapping revealed good congruency with the anatomic bli nd spot. Mapping of the 14 patients with age-related macular degeneration was r apid and revealed good accuracy. The average deviation of the mapping border from the a natomic scotoma border was no more than 3.1%of the scotoma radius. Static mappi ng of 7 of the patients with age-related macular degeneration was longer and re vealed lower accuracy. CONCLUSIONS: The proposed method is more rapid, accurate, and consistent than static mapping. It allows accurate mapping of central scoto ma with suprathreshold stimulus, and may be used in the future for detecting the early stages of age-related macular degeneration using subthreshold stimulus.
文摘The problem of strong uniqueness of best approximation from an RS set in a Banach space is considered. For a fixed RS set G and an element x∈X , we proved that the best approximation g * to x from G is strongly unique.
文摘SUN MARK 桑玛克隔热纸全系列产品,皆经过专业工程师精心设计,出厂前需通过严格的品管与测试,并采用航天科技所需的钛镍特殊合金、耐高温的隔热金属材质制成,具有一般色纸5～8倍以上的隔热能力,可有效降温、增加冷房效率;透视性佳、防爆效果强。所有产品皆有6年品质保障,产品齐全,多样化的选择,满足不同车主的个人需求。
