Search for dissertations about: "Retinal ganglion cells"

Showing result 6 - 10 of 14 swedish dissertations containing the words Retinal ganglion cells.

  2. 6. Spatial Vision in Birds: Anatomical investigation of spatial resolving power

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

    Abstract : 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. READ MORE

  4. 7. Selective wavelength pupillometry to evaluate outer and inner retinal photoreception

    Author : Aki Kawasaki; Fatima Pedrosa Domellöf; Bertil Lindblom; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pupil; pupil light reflex; melanopsin; photoreceptor; intrinsically photosensitive retinal ganglion cell; oftalmiatrik; Ophtalmology;

    Abstract : PurposeIntrinsically photosensitive retinal ganglion cells (ipRGCs) express a unique photopigment called melanopsin. Capable of direct phototransduction, the ipRGCs are also influenced by rods and cones via synaptic inputs. READ MORE

  5. 8. Experimental Injury to the Visual System : Molecular Studies of the Retina

    Author : Ulrika Lönngren; Finn Hallböök; Fredrik Ghosh; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; retina; injury; ischemia; gene expression; brimonidine; alpha-2-adrenergic agonist; neuroprotection; growth factors; apoptosis; Müller cells; Neuroscience; Neurovetenskap;

    Abstract : Retinal ganglion cells play a crucial role in the relay of visual signals from the eye to the brain. This cell type is affected and eventually lost in the eye disease glaucoma, resulting in progressive and irreversible loss of vision. READ MORE

  6. 9. Neurotrophic factors and their receptors in the developing avian retina and its tectal target

    Author : Miriam Karlsson; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Neurosciences; Neurovetenskap; Neurology; Neurologi; Developmental Neurosciences; medicinsk utvecklings- och neurobiologi;

    Abstract : Neurotrophic factors and their receptors are crucial for the formation of neuronal connections and for the neuronal survival during embryonic development of the nervous system. This has particularly been shown by studies of the PNS. READ MORE

  7. 10. Quantitative assessment of glaucoma by artificial intelligence estimation of the waist of the nerve fiber layer in the optic nerve head

    Author : Konstancija Kisonaite; Per Söderberg; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicinsk vetenskap; Medical Science; Ophtalmology; Oftalmiatrik;

    Abstract : Glaucoma is a chronic progressive disease that causes loss of retinal ganglion cells, which impairs the visual field. In optic coherence tomography (OCT) image, the retinal ganglion cell (RGC) axons in the optic nerve head (ONH) can be quantified as the minimal thickness from the ONH Pigmental epithelium Central Limit (OPCL) to the Inner limit of the Retina Closest Point (IRCP). READ MORE