Sökning: "visual acuity"

Visar resultat 16 - 20 av 109 avhandlingar innehållade orden visual acuity.

  1. 16. Transverse Chromatic Aberration and Vision: Quantification and Impact across the Visual Field

    Författare :Simon Winter; Linda Lundström; Stephen Burns; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; transverse chromatic aberration; lateral chromatic aberration; visual optics; peripheral vision; central vision; dispersion; ophthalmic optics and devices; optical effects on vision; retinal imaging; myopia; human eye; Fysik; Physics;

    Sammanfattning : The eye is our window to the world. Human vision has therefore been extensively studied over the years. However, in-depth studies are often either limited to our central visual field, or, when extended to the periphery, only correct optical errors related to a narrow spectrum of light. LÄS MER

  3. 17. Visual screening of children in Sweden : epidemiological and methodological aspects

    Författare :Gun Kvarnström; Peter Jakobsson; Gunnar Lennerstrand; Anders Sjöström; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : The aim of this thesis was to assess the vision screening system and ocular status in Sweden of today, yesterday and tomorrow and to compare the prevalence of ocular disease before and after screening and treatment with special focus on amblyopia.Screening has been defmed by the United States Commission of Chronic Illness (1957) as "the presumptive identification of unrecognized disease or defect by the application oftests, examinations or other procedures, which can be rapidly applied. LÄS MER

  4. 18. Ophthalmological follow-up in young adults born premature and screened for retinopathy of prematurity

    Författare :Dýrleif Pétursdóttir; Eva Larsson; Gerd Holmström; Marita Andersson Grönlund; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Long-term follow-up; prematurity; refraction; retinopathy of prematurity; strabismus; visual function; visual-motor integration; young adults; Ophtalmology; Oftalmiatrik;

    Sammanfattning : Prematurely born children have a higher risk of ophthalmological and neurodevelopmental disorders than those born at term. There is a paucity of long-term prospective follow-up studies on the visual function of prematurely born adults. LÄS MER

  5. 19. Spatial Vision in Birds: Anatomical investigation of spatial resolving power

    Författare :Mindaugas Mitkus; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Raptors; Seabirds; Parrots; Birds; Double cones; Development; Retinal ganglion cells; Visual spatial resolution; Visual ecology; Vision;

    Sammanfattning : Avian eyes are big both in relative and absolute terms, thus the importance of vision to birds is obvious. Even though the general eye plan is rather conservative throughout the group, there is a great variation in visual capabilities. LÄS MER

  7. 20. Congenital and Childhood Myotonic Dystrophy type 1 - the impact on central nervous system, visual and motor function

    Författare :Anne-Berit Ekström; Göteborgs universitet; []
    Nyckelord :myotonic dystrophy type 1; children; muscle strength; motor function; autism spectrum conditions; learning disability; adaptive skills; visual impairment; hyperopia;

    Sammanfattning : Background and aims: Myotonic dystrophy type 1 (DM1) is an autosomal dominant multisystemic disorder, caused by an expanded CTG repeat on chromosome 19. The disorder can present both in children and adults. LÄS MER