Sökning: "ONH"

Hittade 5 avhandlingar innehållade ordet ONH.

  1. 1. Morphometry of the Optic Nerve Head as a Diagnostic Tool for Glaucoma

    Författare :Camilla Sandberg Melin; Per Söderberg; Boel Bengtsson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; optic nerve head; ONH; nerve fibers; glaucoma; optical coherence tomography; OCT; Pigment epithelium central limit-inner limit of the retina minimal distance; PIMD; PIMD-2π; Segmental PIMD-2π; confocal scanning laser tomography; HRT; NRA; variation; variability; variance; loss rate; follow-up.;

    Sammanfattning : Glaucoma is a chronic optic nerve head (ONH) disease. Gradual retinal ganglion cell and nerve fiber loss lead to morphological ONH change and visual field defects. Initial loss is often focal. Rate of progression and life expectancy guide treatment. LÄS MER

  3. 2. Glaucoma Diagnostics

    Författare :Sabina Andersson; Oftalmologi (Malmö); []
    Nyckelord :POAG – glaucoma – diagnostic accuracy – screening – subjective assessment – population-based – GDx VCC – OCT – HRT – FDT – ONH assessment – CME – ANN – artificial neural network – visual field assessment;

    Sammanfattning : This thesis addresses several aspects of glaucoma diagnostics from both a clinical and a screening perspective. New instruments for diagnosing glaucoma have been developed over the past years, but little information is available regarding their performance as screening methods and their usefulness in ordinary clinical practice. LÄS MER

  4. 3. Optic nerve hypoplasia in children : prevalence, associated disorders and genetic causes

    Författare :Sara Dahl; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Optic nerve hypoplasia (ONH) is a congenital ocular malformation with a thin optic nerve in one or both eyes. ONH has been associated with neurodevelopmental disorders and pituitary dysfunction, but the prevalence of these comorbidities are still unknown, especially in children with less severe visual impairment and unilateral disease. LÄS MER

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

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

    Sammanfattning : 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). LÄS MER

  7. 5. Rhinomanometry in clinical use. A tool in the septoplasty decision making process

    Författare :Helle Thulesius; Lund näs- och halssjukdomar Öron-; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Rhinomanometry; nasal obstruction; nasal airway resistance; septoplasty; VAS; xylometazoline; budesonide; topical nasal glucocorticosteroid;

    Sammanfattning : Subjective nasal obstruction is a common chronic complaint caused by mucosal disease, skeletal abnormality or a combination of both. The challenge is to determine the main cause and to decide whether the intervention should be medical or surgical. LÄS MER