Browsing USN Open Archive by Author "Baraas, Rigmor C."

Now showing items 1-20 of 23

    • Characteristics and Utility of Fundus Autofluorescence in Congenital Aniridia Using Scanning Laser Ophthalmoscopy 

      Landsend, Erlend Christoffer Sommer; Pedersen, Hilde Røgeberg; Utheim, Øygunn Aass; Rueegg, Corina Silvia; Baraas, Rigmor C.; Lagali, Neil; Bragadottir, Ragnheidur; Moe, Morten Carsten; Utheim, Tor Paaske (Journal article; Peer reviewed, 2019)
      Purpose: To investigate fundus autofluorescence (FAF) and other fundus manifestations in congenital aniridia. Methods: Fourteen patients with congenital aniridia and 14 age- and sex-matched healthy controls were examined. ...

    • Color Vision in Aniridia 

      Pedersen, Hilde Røgeberg; Hagen, Lene Aarvelta; Landsend, Erlend Christoffer Sommer; Gilson, Stuart; Utheim, Øygunn Aass; Utheim, Tor Paaske; Neitz, Maureen; Baraas, Rigmor C. (Journal article; Peer reviewed, 2018)
      Purpose: To assess color vision and its association with retinal structure in persons with congenital aniridia. Methods: We included 36 persons with congenital aniridia (10–66 years), and 52 healthy, normal trichromatic ...

    • The cone photoreceptor mosaic in aniridia: within-family phenotype-genotype discordance 

      Pedersen, Hilde Røgeberg; Neitz, Maureen; Gilson, Stuart; Landsend, Erlend Christoffer Sommer; Utheim, Øygunn Aass; Utheim, Tor Paaske; Baraas, Rigmor C. (Peer reviewed; Journal article, 2019)
      Purpose Investigate in vivo cone photoreceptor structure in familial aniridia caused by deletion in the PAX6 gene to elucidate the complexity of between-individual variation in retinal phenotype. Design Descriptive ...

    • Emmetropia Is Maintained Despite Continued Eye Growth From 16 to 18 Years of Age 

      Hagen, Lene Aarvelta; Gilson, Stuart; Akram, Muhammad Nadeem; Baraas, Rigmor C. (Journal article; Peer reviewed, 2019)
      PURPOSE. To examine, in Norwegian adolescents, to what degree emmetropia and low hyperopia were maintained from 16 to 18 years of age, and if this was the case, whether it was associated with continued coordinated ocular ...

    • Exploring the effects of degraded vision on sensorimotor performance 

      Sheppard, William E. A.; Dickerson, Polly; Baraas, Rigmor C.; Mon-Williams, Mark; Barrett, Brendan T.; Wilkie, Richard M.; Coats, Rachel O. (Peer reviewed; Journal article, 2021)
      Purpose: Many people experience unilateral degraded vision, usually owing to a developmental or age-related disorder. There are unresolved questions regarding the extent to which such unilateral visual deficits impact on ...

    • Eye growth between January and June in primary school children in Norway: assessing changes in ocular biometry and choroidal thickness 

      Kjærland, Marianne (Master thesis, 2021)
      Purpose: The purpose of this study was to investigate the relationship between eye growth and choroidal thickness changes from winter to summer among schoolchildren part of the Southeast Norway Vision and Visuomotor (SNOW) ...

    • Fargede filtre gir ikke rød-grønne fargesvake normal fargebedømmelse 

      Dees, Elise W.; Baraas, Rigmor C. (Journal article; Peer reviewed, 2011)
      Fargede filtre har i over 200 år blitt utprøvd for å bedre fargediskriminering hos rød-grønne fargesvake. Fargesvake som får kjennskap til slike filtre, kan få urealistiske forventninger til effekten disse kan ha på ...

    • IMI Risk Factors for Myopia 

      Morgan, Ian G.; Wu, Pei-Chang; Ostrin, Lisa A.; Tideman, Willem; Yam, Jason C.; Lan, Wiezhong; Baraas, Rigmor C.; He, Xiangui; Padmaja, Sankaridurg; Seang-Mei, Saw; French, Amanda; Rose, Kathryn A.; Guggenheim, Jeremy A. (Peer reviewed; Journal article, 2021)
      Risk factor analysis provides an important basis for developing interventions for any condition. In the case of myopia, evidence for a large number of risk factors has been presented, but they have not been systematically ...

    • Meibomian gland dysfunction and keratopathy are associated with dry eye disease in aniridia 

      Landsend, Erlend Christoffer Sommer; Pedersen, Hilde Røgeberg; Utheim, Øygunn Aass; Xiao, Jiaxin; Adil, Muhammed Yasin; Tashbayev, Behzod; Lagali, Neil; Dartt, Darlene Ann; Baraas, Rigmor C.; Utheim, Tor Paaske (Journal article; Peer reviewed, 2018)
      Aims To investigate the aetiology and characteristics of dry eye disease (DED) in a Nordic cohort of patients with congenital aniridia. Methods Thirty-four Norwegian and one Danish subject with congenital aniridia and 21 ...

    • Multimodal imaging of small hard retinal drusen in young healthy adults. 

      Pedersen, Hilde Røgeberg; Gilson, Stuart; Dubra, Alfredo; Munch, Inger Christine; Larsen, Michael; Baraas, Rigmor C. (Journal article; Peer reviewed, 2017)
      Background Small hard macular drusen can be observed in the retina of adults as young as 18 years of age. Here, we seek to describe the in vivo topography and geometry of these drusen. Methods Retinal images were acquired ...

    • Multimodal in-vivo maps as a tool to characterize retinal structural biomarkers for progression in adult-onset Stargardt disease 

      Pedersen, Hilde Røgeberg; Gilson, Stuart; Hagen, Lene Aarvelta; Holtan, Josephine Prener; Bragadottir, Ragnheidur; Baraas, Rigmor C. (Peer reviewed; Journal article, 2024)
      Purpose: To characterize retinal structural biomarkers for progression in adult-onset Stargardt disease from multimodal retinal imaging in-vivo maps. Methods: Seven adult patients (29–69 years; 3 males) with genetically-confirmed ...

    • The need for cycloplegic refraction in adolescents and young adults 

      Hagen, Lene Aarvelta; Gilson, Stuart; Baraas, Rigmor C. (Peer reviewed; Journal article, 2023)
      Cycloplegic refraction is considered the gold standard method when examining children and for ensuring accurate refractive error assessment within epidemiological studies. Recent reports underline that cycloplegia is equally ...

    • Non-cycloplegic refraction cannot replace cycloplegic refraction when screening for refractive errors in children 

      Bjørset, Cecilie Onshuus; Pedersen, Hilde Røgeberg; Synstelien, Gro O.; Gilson, Stuart; Hagen, Lene Aarvelta; Langaas, Trine; Thorud, Hanne Mari Schiøtz; Vikesdal, Gro Horgen; Baraas, Rigmor C.; Svarverud, Ellen (Journal article; Peer reviewed, 2022)
      The purpose was to assess the differences in spherical equivalent refractive error (SER) between cycloplegic autorefraction (1% cyclopentolate), non-cycloplegic autorefraction, and non-cycloplegic retinoscopy measured by ...

    • PAX6 Genotypic and Retinal Phenotypic Characterization in Congenital Aniridia 

      Pedersen, Hilde Røgeberg; Baraas, Rigmor C.; Landsend, Erlend Christoffer Sommer; Utheim, Øygunn Aass; Utheim, Tor Paaske; Gilson, Stuart; Neitz, Maureen (Peer reviewed; Journal article, 2020)
      PURPOSE: To investigate the association between PAX6 genotype and macular morphology in congenital aniridia. METHODS: The study included 37 participants (15 males) with congenital aniridia (aged 10–72 years) and 58 ...

    • Prevalence and Possible Factors of Myopia in Norwegian Adolescents 

      Hagen, Lene Aarvelta; Gjelle, Jon Vegard Barstad; Arnegard, Solveig; Pedersen, Hilde Røgeberg; Gilson, Stuart; Baraas, Rigmor C. (Journal article; Peer reviewed, 2018)
      East Asia has experienced an excessive increase in myopia in the past decades with more than 80% of the younger generation now affected. Environmental and genetic factors are both assumed to contribute in the development ...

    • The Relationship Between Perifoveal L-Cone Isolating Visual Acuity and Cone Photoreceptor Spacing—Understanding the Transition Between Healthy Aging and Early AMD 

      Baraas, Rigmor C.; Horjen, Åshild Bøysen; Gilson, Stuart; Pedersen, Hilde R. (Peer reviewed; Journal article, 2021)
      Background: Age-related macular degeneration (AMD) is a multifactorial degenerative disorder that can lead to irreversible loss of visual function, with aging being the prime risk factor. However, knowledge about the ...

    • Rod and Cone Dark Adaptation in Congenital Aniridia and Its Association With Retinal Structure 

      Pedersen, Hilde Røgeberg; Gilson, Stuart; Landsend, Erlend Christoffer Sommer; Utheim, Øygunn Aass; Utheim, Tor Paaske; Baraas, Rigmor C. (Peer reviewed; Journal article, 2023)
      Purpose: To characterize the association between dark-adapted rod and cone sensitivity and retinal structure in PAX6-related aniridia. Methods: Dark-adaptation curves were measured after a 5-minute exposure to bright light ...

    • Seasonal and Annual Change in Physiological Ocular Growth of 7- to 11-Year-Old Norwegian Children 

      Nilsen, Nickolai Godtfred; Gilson, Stuart; Lindgren, Helene; Kjærland, Marianne; Pedersen, Hilde Røgeberg; Baraas, Rigmor C. (Peer reviewed; Journal article, 2023)
      Purpose: To investigate seasonal and annual change in physiological eye growth in Norwegian school children. Methods: Measurements of ocular biometry, non-cycloplegic spherical equivalent autorefraction (SER), and choroidal ...

    • Single-cone imaging in inherited and acquired colour vision deficiencies 

      Baraas, Rigmor C.; Pedersen, Hilde Røgeberg; Hagen, Lene Aarvelta (Journal article; Peer reviewed, 2019)
      Colour vision deficiencies are common in humans and occur both as a consequence of inherited cone opsin mutations, altering the number or function of the different cone types expressed in the retina, and acquired through ...

    • Studentaktive vurderingsformer i norsk lærer- og optometriutdanning 

      Burner, Tony; Baraas, Rigmor C.; Falkenberg, Helle Kristine (Journal article; Peer reviewed, 2011)
      Medstudentvurdering er en form for studentarbeid som er blitt tatt i bruk og forsket på i større omfang internasjonalt enn nasjonalt. Her presenteres to casestudier med bruk av medstudentvurdering fra to ulike profesjons ...