Bilde av Bertelsen, Geir
Bilde av Bertelsen, Geir
Førsteamanuensis Department of Clinical Medicine geir.bertelsen@uit.no Tromsø You can find me here

Geir Bertelsen



  • Silje Småbrekke, Karl Marius Brobakk, Nikoline Balteskard Rinde, Therese von Hanno, Geir Bertelsen, Bjørn Odvar Eriksen et al.:
    The Retinal Vasculature and Risk of Age-Related GFR Decline — The Renal Iohexol Clearance Survey
    Kidney International Reports 2025 DOI
  • Yue Feng, Tore Nitter, Geir Bertelsen, Aleksandar Stojanovic :
    Repeatability and agreement of total corneal astigmatism measured in keratoconic eyes using four current devices
    Clinical and Experimental Ophthalmology (CEO) 2024 ARKIV / DOI
  • Joëlle E. Vergroesen, Alexander K. Schuster, Kelsey V. Stuart, Nigus G. Asefa, Audrey Cougnard-Grégoire, Cécile Delcourt et al.:
    Association of Systemic Medication Use with Glaucoma and Intraocular Pressure: The European Eye Epidemiology Consortium
    Ophthalmology (Rochester, Minn.) 2023 ARKIV / DOI
  • Yue Feng, Dan Z. Reinstein, Tore Nitter, Timothy J. Archer, Colm McAlinden, Geir Bertelsen et al.:
    Epithelial Thickness Mapping in Keratoconic Corneas: Repeatability and Agreement Between CSO MS-39, Heidelberg Anterion, and Optovue Avanti OCT Devices
    Journal of refractive surgery 2023 ARKIV / DOI
  • Frank C. T. van der Heide, Anthony Khawaja, Tos T. J. M. Berendschot, Thomas J. Littlejohns, Elżbieta Kuźma, Robert Luben et al.:
    Associations of inner retinal layers with risk of incident dementia: An individual participant data analysis of four prospective cohort studies
    Alzheimer's & Dementia 2023 ARKIV / DOI
  • Therese von Hanno, Live Lund Hareide, Lars Småbrekke, Bente Morseth, Monica Sneve, Maja Gran Erke et al.:
    Macular Layer Thickness and Effect of BMI, Body Fat, and Traditional Cardiovascular Risk Factors: The Tromsø Study
    Investigative Ophthalmology and Visual Science 2022 ARKIV / DOI
  • Matthias M. Mauschitz, Timo Verzijden, Alexander K. Schuster, Hisham Elbaz, Norbert Pfeiffer, Anthony Khawaja et al.:
    Association of lipid-lowering drugs and antidiabetic drugs with age-related macular degeneration: A meta-analysis in Europeans
    British Journal of Ophthalmology 2022 ARKIV / DOI
  • Yue Feng, Dan Z. Reinstein, Tore A. Nitter, Timothy J. Archer, Colm McAlinden, Xiangjun Chen et al.:
    Heidelberg anterion swept-source OCT corneal epithelial thickness mapping: Repeatability and agreement with optovue avanti
    Journal of refractive surgery 2022 ARKIV / DOI
  • Caroline Lind, Karina Olsen, Nina Krøll Angelsen, Einar A. Krefting, Kristian Fossen, Kirsten Gravningen et al.:
    Clinical course, treatment and visual outcome of an outbreak of Burkholderia contaminans endophthalmitis following cataract surgery
    Journal of Ophthalmic Inflammation and Infection 2021 ARKIV / DOI
  • Asri Maharani, Piers Dawes, James Nazroo, Gindo Tampubolon, Neil Pendleton, Geir Bertelsen et al.:
    Trajectories of recall memory as predictive of hearing impairment: A longitudinal cohort study
    PLOS ONE 2020 ARKIV / DOI
  • Asri Maharani, Piers Dawes, James Nazroo, Gindo Tampubolon, Neil Pendleton, Geir Bertelsen et al.:
    Associations Between Self-Reported Sensory Impairment and Risk of Cognitive Decline and Impairment in the Health and Retirement Study Cohort
    The journals of gerontology. Series B, Psychological sciences and social sciences 2020 DOI
  • Veronika Gjertsen Rypdal, Mia Glerup, Nils Thomas Songstad, Geir Bertelsen, Terje Christoffersen, Ellen Dalen Arnstad et al.:
    Uveitis in Juvenile Idiopathic Arthritis 18-Year Outcome in the Population-based Nordic Cohort Study
    Ophthalmology (Rochester, Minn.) 2020 ARKIV / DOI
  • Andrea Sofie Henriette Milde Øhrn, Henrik Schirmer, Therese von Hanno, Ellisiv B. Mathiesen, Kjell Arne Arntzen, Geir Bertelsen et al.:
    Small and large vessel disease in persons with unrecognized compared to recognized myocardial infarction: The Tromsø Study 2007 – 2008
    International Journal of Cardiology 2018 DOI
  • S Cosh, Therese von Hanno, C Helmer, Geir Bertelsen, C Delcourt, Henrik Schirmer :
    The association amongst visual, hearing, and dual sensory loss with depression and anxiety over 6 years: The Tromsø Study
    International Journal of Geriatric Psychiatry 2018 DOI
  • Cécile Delcourt, Mélanie Le Goff, Therese von Hanno, Alireza Mirshahi, Anthony P. Khawaja, Virginie J.M. Verhoeven et al.:
    The decreasing prevalence of nonrefractive visual impairment in older Europeans: a meta-analysis of published and unpublished data
    Ophthalmology (Rochester, Minn.) 2018 ARKIV / DOI
  • Johanna M. Colijn, Anneke I. den Hollander, Ayse Demirkan, Audrey Cougnard-Grégoire, Timo Verzijden, Eveline Kersten et al.:
    Increased high-density lipoprotein levels associated with age-related macular degeneration: Evidence from the EYE-RISK and European Eye Epidemiology Consortia
    Ophthalmology (Rochester, Minn.) 2018 DOI
  • Therese von Hanno, Anette Caroline Lade, Ellisiv B. Mathiesen, Tunde Peto, Inger Njølstad, Geir Bertelsen :
    Macular thickness in healthy eyes of adults (N=4508) and relation to sex, age and refraction: The Tromsø Eye Study (2007-08)
    Acta Ophthalmologica 18. diciembre 2016 ARKIV / DOI
  • Johanna M. Colijn, Gabriëlle H.S. Buitendijk, Elena Prokofyeva, Dalila Alves, Maria L. Cachulo, Anthony P. Khawaja et al.:
    Prevalence of age-related macular degeneration in Europe: the past and the future
    Ophthalmology (Rochester, Minn.) 2017 ARKIV / DOI
  • Bjørn Odvar Eriksen, Maja-Lisa Løchen, Kjell Arne Arntzen, Geir Bertelsen, Britt-Ann Eilertsen, Therese von Hanno et al.:
    Estimated and Measured GFR Associate Differently with Retinal Vasculopathy in the General Population
    Nephron 2015 ARKIV / DOI
  • Cécile Delcourt, Jean-François Korobelnik, Gabriëlle H.S. Buitendijk, Paul J. Foster, Christopher J. Hammond, Stefano Piermarocchi et al.:
    Ophthalmic epidemiology in Europe: the “European Eye Epidemiology” (E3) consortium
    European Journal of Epidemiology (EJE) 2015 DOI
  • Katie M. Williams, Virginie J.M. Verhoeven, Phillippa Cumberland, Geir Bertelsen, Christian Wolfram, Gabriëlle H.S. Buitendijk et al.:
    Prevalence of refractive error in Europe: the European Eye Epidemiology (E(3)) Consortium
    European Journal of Epidemiology (EJE) 2015 ARKIV / DOI
  • Katie M. Williams, Geir Bertelsen, Phillippa Cumberland, Christian Wolfram, Virginie J.M. Verhoeven, Eleftherios Anastasopoulos et al.:
    Increasing prevalence of myopia in Europe and the impact of education
    Ophthalmology (Rochester, Minn.) 2015 ARKIV / DOI
  • Maja Gran Erke, Geir Bertelsen, Tunde Peto, Anne Katrin Sjølie, Haakon Lindekleiv, Inger Njølstad :
    Cardiovascular risk factors associated with agerelated macular degeneration: the Tromsø Study
    Acta Ophthalmologica 2014 DOI
  • Geir Bertelsen, Tunde Peto, Haakon Lindekleiv, Henrik Schirmer, Marit Dahl Solbu, Ingrid Toft et al.:
    Sex differences in risk factors for retinopathy in non-diabetic men and women: The Tromsø Eye Study
    Acta Ophthalmologica 2014 DOI
  • Bjørn Odvar Eriksen, Maja-Lisa Løchen, Kjell Arne Arntzen, Geir Bertelsen, Britt-Ann Eilertsen, Therese von Hanno et al.:
    Subclinical cardiovascular disease is associated with a high glomerular filtration rate in the nondiabetic general population
    Kidney International 2014 DOI
  • Therese von Hanno, Geir Bertelsen, Anne Katrin Sjølie, Ellisiv B. Mathiesen :
    Retinal vascular calibres are significantly associated with cardiovascular risk factors: The Tromsø Eye Study
    Acta Ophthalmologica 2014 DOI
  • Haakon Lindekleiv, Maja Gran Erke, Geir Bertelsen, Tunde Peto, Kjell Arne Arntzen, Henrik Schirmer et al.:
    Cognitive function, drusen, and age-related macular degeneration: a cross-sectional study
    Eye (London. 1987) 2013 DOI
  • Maja Gran Erke, Geir Bertelsen, Tunde Peto, Anne Katrin Sjølie, Haakon Lindekleiv, Inger Njølstad :
    Lactation, female hormones and age-related macular degeneration: the TromsO Study
    British Journal of Ophthalmology 2013 DOI
  • Geir Bertelsen, Maja Gran Erke, Therese von Hanno, Ellisiv B. Mathiesen, Tunde Peto, Anne Katrin Sjølie et al.:
    The Tromsø Eye Study: study design, methodology and results on visual acuity and refractive errors
    Acta Ophthalmologica 2013 DOI
  • Therese von Hanno, Geir Bertelsen, Ann Ragnhild Broderstad, Tom Wilsgaard, Ellisiv B. Mathiesen :
    Serum Ferritin and Hemoglobin Are Independently Associated With Wider Retinal Venular Caliber: The Tromso Study 2001-2008
    Investigative Ophthalmology and Visual Science 2013 DOI
  • Vibeke Sundling, Carl Geoffrey Parrinder Platou, Ragnhild Wivestad Jansson, Geir Bertelsen, Erik Wøllo, Pål Gulbrandsen :
    Retinopathy and visual impairment in diabetes, impaired glucose tolerance and normal glucose tolerance: the Nord-Trondelag Health Study (the HUNT study)
    Acta Ophthalmologica 2012 DOI
  • Hilde N Kilstad, Anne Katrine Sjølie, Lasse G Gøransson, Rune Hapnes, Hans Jørgen Henscien, Knud Erik Alsbirk et al.:
    Prevalence of diabetic retinopathy in Norway: report from a screening study
    Acta Ophthalmologica 2012 DOI
  • Maja Gran Erke, Geir Bertelsen, Tunde Peto, Anne Katrin Sjølie, Haakon Lindekleiv, Inger Njølstad :
    Prevalence of age-related macular degeneration in elderly Caucasians: The Tromsø Eye Study
    Ophthalmology (Rochester, Minn.) 2012 DOI
  • Xiayu Xu, Joseph M. Reinhardt, Qiao Hu, Benjamin Bakall, Paul S. Tlucek, Geir Bertelsen et al.:
    Retinal Vessel Width Measurement at Branchings Using an Improved Electric Field Theory-Based Graph Approach
    PLOS ONE 2012 ARKIV / DOI
  • Geir Bertelsen, Tunde Peto, Haakon Lindekleiv, Henrik Schirmer, Marit Dahl Solbu, Ingrid Toft et al.:
    Tromsø eye study: prevalence and risk factors of diabetic retinopathy
    Acta Ophthalmologica 2012 DOI
  • Laila Arvola, Geir Bertelsen, Kirsti Ytrehus :
    Bradykinin induced sustained anti-adrenergic actions in guinea pig heart muscle involves PKC
    Scandinavian Cardiovascular Journal 2007 DOI
  • Magnus Oterhals Størdal, Benjamin Ricaud, Michael Christian Kampffmeyer, Geir Bertelsen, Maja Gran Erke :
    Risk Prediction of Diabetic Retinopathy in the Tromsø Study
    2023
  • Magnus Oterhals Størdal, Benjamin Ricaud, Michael Christian Kampffmeyer, Geir Bertelsen, Maja Gran Erke :
    Risk Prediction of Diabetic Retinopathy in the Tromsø Study
    2023
  • Veronika Gjertsen Rypdal, Mia Glerup, terje Christoffersen, Geir Bertelsen, Ellen Dalen Arnstad, Kristiina Aalto et al.:
    Long-term outcome and complications in uveitis, 17 years after disease onset in a population-based Nordic Juvenile Idiopathic arthritis cohort. Proceedings of the 25th European Paediatric Rheumatology Congress (PReS 2018), Lisbon, Portugal.
    Pediatric Rheumatology 2018 DOI
  • Maja Gran Erke, Geir Bertelsen, Tunde Peto, Inger Njølstad :
    COD LIVER OIL AND FATTY FISH CONSUMPTION IN RELATION TO AGE-RELATED MACULAR DEGENERATION. THE TROMSO STUDY
    European Journal of Ophthalmology 2013
  • Maja Gran Erke, Geir Bertelsen, T Peto, AK Sjolie, Haakon Lindekleiv, Inger Njølstad :
    DIABETES MELLITUS IS NOT ASSOCIATED WITH AGE-RELATED MACULAR DEGENERATION: THE TROMSO EYE STUDY
    European Journal of Ophthalmology 2012
  • Haakon Lindekleiv, Maja Gran Erke, T Peto, Kjell Arne Arntzen, Henrik Schirmer, Tom Wilsgaard et al.:
    Drusen and AMD are associated with reduced cognitive function: the Tromso study
    European Journal of Neurology 2012
  • Geir Bertelsen, Maja Gran Erke, AK Sjølie, Inger Njølstad :
    NO DIFFERENCE IN PREVALENCE OF RETINAL VEIN OCCLUSIONS BETWEEN AND NONDIABETIC PARTICIPANTS IN THE TROMSO EYE STUDY
    European Journal of Ophthalmology 2011
  • T von Hanno, Geir Bertelsen, J Grauslund, AK Sjolie, EB Mathiesen :
    DIABETES IS ASSOCIATED WITH CHANGES IN RETINAL VESSEL CALIBER IN WOMEN
    European Journal of Ophthalmology 2011
  • Geir Bertelsen, Kristian fossen, Inger Njølstad :
    Diabetic retinopathy in the Tromso cohort
    Acta Ophthalmologica 2008

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    Research interests

    Leder for Tromsø Øyestudie

    Epidemiologisk forskning på øyesykdommer samt øyesykdommers relasjon til systemsykdommer med spesiell fokus på diabetes retinopati, aldersrelatert makuladegenerasjon og grønn stær. 

    Teaching

    Delemneleder MED2501, delemne 2.1