Ragnheiður Bragadóttir

  • Senior consultant, associate professor
  • +47 22 11 85 46
 

Publications 2025

Eriksen KO, Eidet JR, Kjellström U, Baldesi J, Bragadóttir R, Colombo L, Holtan JP (2025)
Characterising PRPF31-associated retinal dystrophy: Clinical insights from baseline data in a natural history study
Acta Ophthalmol (in press)
DOI 10.1111/aos.70005, PubMed 40977613

Georgiou M, Fujinami K, Fujinami-Yokokawa Y, Nasser F, Gale MJ, Ayuso C, Mahroo OA, Pontikos N, Bouzia Z, Jimenez-Rolando B, Carreño E, Baraas RC, Holtan JP, Bragadottir R, Thiadens AAHJ, Pechhacker MG, Vincent A, Héon E, Altalbishi A, Maldonado RS, Neidhardt J, Kousal B, Lišková P, Bertelsen M, Larsen LM et al. (2025)
Natural History of Autosomal Recessive IMPG2-Associated Retinal Dystrophy
Am J Ophthalmol, 278, 73-80
DOI 10.1016/j.ajo.2025.05.044, PubMed 40484299

Rustad CF, Bragadottir R, Nordgarden H, Miller JUU, Weedon-Fekjær MS, Arfa S, Åsten PM, Tveten K, von der Lippe C, Sigurdardottir S (2025)
Healthcare needs, care use and health status outcomes in adults with Bardet-Biedl syndrome: a cross-sectional study in Norway
BMJ Open, 15 (4), e095986
DOI 10.1136/bmjopen-2024-095986, PubMed 40262952

Rustad CF, Bragadottir R, Tveten K, Nordgarden H, Miller JU, Åsten PM, Vasconcelos G, Kulseth MA, Holla ØL, Olsen HG, von der Lippe C, Sigurdardottir S (2025)
Clinical and genetic aspects of Bardet-Biedl syndrome in adults in Norway
Orphanet J Rare Dis, 20 (1), 127
DOI 10.1186/s13023-025-03641-3, PubMed 40087798

Publications 2024

Aslaksen S, Aukrust I, Molday L, Holtan JP, Jansson RW, Berland S, Rødahl E, Bredrup C, Bragadóttir R, Bratland E, Molday RS, Knappskog PM (2024)
Functional Characterization of ABCA4 Missense Variants Aids Variant Interpretation and Phenotype Prediction in Patients With ABCA4-Retinal Dystrophies
Invest Ophthalmol Vis Sci, 65 (10), 2
DOI 10.1167/iovs.65.10.2, PubMed 39087934

Pedersen HR, Gilson SJ, Hagen LA, Holtan JP, Bragadottir R, Baraas RC (2024)
Multimodal in-vivo maps as a tool to characterize retinal structural biomarkers for progression in adult-onset Stargardt disease
Front Ophthalmol (Lausanne), 4, 1384473
DOI 10.3389/fopht.2024.1384473, PubMed 38984108

Publications 2023

Confalonieri F, Haave H, Binder S, Bober AM, Bragadottir R, Baerland T, Faber R, Forsaa V, Gonzalez-Lopez JJ, Govetto A, Haugstad M, Ivastinovic D, Jenko NČ, Nicoară SD, Kaljurand K, Kozak I, Kvanta A, Lytvynchuk L, Nawrocka ZA, Pajic SP, Petrovič MG, Radecka L, Rehak M, Romano MR, Ruban A et al. (2023)
Macular hole Delphi consensus statement (MHOST)
Acta Ophthalmol, 101 (7), 815-825
DOI 10.1111/aos.15682, PubMed 37493073

Confalonieri F, Josifovska N, Boix-Lemonche G, Stene-Johansen I, Bragadottir R, Lumi X, Petrovski G (2023)
Vitreous Substitutes from Bench to the Operating Room in a Translational Approach: Review and Future Endeavors in Vitreoretinal Surgery
Int J Mol Sci, 24 (4)
DOI 10.3390/ijms24043342, PubMed 36834754

Reitan G, Kjellevold Haugen IB, Andersen K, Bragadottir R, Bindesbøll C (2023)
Through the Eyes of Patients: Understanding Treatment Burden of Intravitreal Anti-VEGF Injections for nAMD Patients in Norway
Clin Ophthalmol, 17, 1465-1474
DOI 10.2147/OPTH.S409103, PubMed 37256195

Publications 2022

Blom K, Bragadóttir R, Sivertsen MS, Moe MC, Jørstad ØK (2022)
Re: Writing committee for the Post-Injection Endophthalmitis Study Group, et al.: The influence of universal face mask use on endophthalmitis risk after intravitreal anti-vascular endothelial growth factor injections (Ophthalmology. 2021;128:1620-1626)
Ophthalmology, 129 (5), e61-e62
DOI 10.1016/j.ophtha.2022.01.017, PubMed 35232584

Blom K, Jørstad ØK, Faber RT, Stene-Johansen I, Holberg-Petersen M, Hermansen NO, Bragadóttir R (2022)
Primary vitrectomy or intravitreal antibiotics followed by early vitrectomy for acute endophthalmitis: A prospective observational study
Acta Ophthalmol, 101 (1), 100-108
DOI 10.1111/aos.15207, PubMed 35751448

Confalonieri F, Haave H, Bragadottir R, Stene-Johansen I, Lumi X, Lytvynchuk L, Petrovski G (2022)
Intraoperative Optical Coherence Tomography in the Management of Macular Holes: State of the Art and Future Perspectives
Biomedicines, 10 (11)
DOI 10.3390/biomedicines10112873, PubMed 36359392

Hertzberg SNW, Jørstad ØK, Petrovski BÉ, Bragadottir R, Steffensen LA, Moe MC, Burger EA, Petrovski G (2022)
Transition from Laser to Intravitreal Injections for Diabetic Retinopathy: Hospital Utilization and Costs from an Extended Healthcare Perspective
Int J Environ Res Public Health, 19 (19)
DOI 10.3390/ijerph191912603, PubMed 36231903

Publications 2021

Blom K, Bragadóttir R, Sivertsen MS, Moe MC, Jørstad ØK (2021)
Mask use by patients in the context of COVID-19 can increase the risk of postinjection endophthalmitis
Acta Ophthalmol, 100 (3), e859-e860
DOI 10.1111/aos.14945, PubMed 34155818

Husum YS, Moe MC, Bragadóttir R, Jørstad ØK (2021)
Switching to aflibercept versus continuing bevacizumab for treatment-resistant neovascular age-related macular degeneration: a one-year comparative observational study
Acta Ophthalmol, 99 (8), e1354-e1359
DOI 10.1111/aos.14825, PubMed 33638291

Publications 2020

Blom K, Bragadóttir R, Sivertsen MS, Moe MC, Jørstad ØK (2020)
Does Pharmaceutical Compounding of Vascular Endothelial Growth Factor Inhibitors for Intravitreal Use Alter the Risk of Post-injection Endophthalmitis?
Ocul Immunol Inflamm, 30 (3), 713-716
DOI 10.1080/09273948.2020.1820530, PubMed 33026900

Hertzberg SNW, Veiby NCBB, Bragadottir R, Eriksen K, Moe MC, Petrovski BÉ, Petrovski G (2020)
Cost-effectiveness of the triple procedure - phacovitrectomy with posterior capsulotomy compared to phacovitrectomy and sequential procedures
Acta Ophthalmol, 98 (6), 592-602
DOI 10.1111/aos.14367, PubMed 32078246

Holtan JP, Aukrust I, Jansson RW, Berland S, Bruland O, Gjerde BL, Stokowy T, Bojovic O, Forsaa V, Austeng D, Rødahl E, Bredrup C, Knappskog PM, Bragadóttir R (2020)
Clinical features and molecular genetics of patients with ABCA4-retinal dystrophies
Acta Ophthalmol, 99 (5), e733-e746
DOI 10.1111/aos.14679, PubMed 33258285

Jørstad ØK, Moe MC, Eriksen K, Petrovski G, Bragadóttir R (2020)
Coronavirus disease 2019 (COVID-19) outbreak at the Department of Ophthalmology, Oslo University Hospital, Norway
Acta Ophthalmol, 98 (3), e388-e389
DOI 10.1111/aos.14426, PubMed 32227668

Navaratnam J, Salvanos P, Vavvas DG, Bragadóttir R (2020)
Ultra-widefield autofluorescence imaging findings in retinoschisis, rhegmatogenous retinal detachment and combined retinoschisis retinal detachment
Acta Ophthalmol, 99 (2), 195-200
DOI 10.1111/aos.14521, PubMed 32602221

Publications 2019

Blom K, Jørstad ØK, Bragadóttir R (2019)
Endophthalmitis in Oslo, Norway
Acta Ophthalmol, 97 (7), 695-699
DOI 10.1111/aos.14028, PubMed 30816017

Holtan JP, Selmer KK, Heimdal KR, Bragadóttir R (2019)
Inherited retinal disease in Norway - a characterization of current clinical and genetic knowledge
Acta Ophthalmol, 98 (3), 286-295
DOI 10.1111/aos.14218, PubMed 31429209

Holtan JP, Teigen K, Aukrust I, Bragadóttir R, Houge G (2019)
Dominant ARL3-related retinitis pigmentosa
Ophthalmic Genet, 40 (2), 124-128
DOI 10.1080/13816810.2019.1586965, PubMed 30932721

Jolly JK, Wagner SK, Martus P, MacLaren RE, Wilhelm B, Webster AR, Downes SM, Charbel Issa P, Kellner U, Jägle H, Rüther K, Bertelsen M, Bragadóttir R, Prener Holtan J, van den Born LI, Sodi A, Virgili G, Gosheva M, Pach J, Zündorf I, Zrenner E, Gekeler F (2019)
Transcorneal Electrical Stimulation for the Treatment of Retinitis Pigmentosa: A Multicenter Safety Study of the OkuStim® System (TESOLA-Study)
Ophthalmic Res, 63 (3), 234-243
DOI 10.1159/000505001, PubMed 31775146

Jørstad ØK, Steffensen LA, Eriksen K, Bragadóttir R, Moe MC (2019)
Thirteen years of intravitreal anti-vascular endothelial growth factor therapy: the promises and burdens of a paradigm shift told from the perspective of the largest retina service in Norway
Acta Ophthalmol, 98 (8), 774-779
DOI 10.1111/aos.14177, PubMed 31264363

Landsend ECS, Pedersen HR, Utheim ØA, Rueegg CS, Baraas RC, Lagali N, Bragadóttir R, Moe MC, Utheim TP (2019)
Characteristics and Utility of Fundus Autofluorescence in Congenital Aniridia Using Scanning Laser Ophthalmoscopy
Invest Ophthalmol Vis Sci, 60 (13), 4120-4128
DOI 10.1167/iovs.19-26994, PubMed 31574536

Navaratnam J, Bærland TP, Eide NA, Faber RT, Rekstad BL, Vavvas DG, Bragadóttir R (2019)
Fundus Autofluorescence Change as an Early Indicator of Treatment Effect of Brachytherapy for Choroidal Melanomas
Ocul Oncol Pathol, 5 (6), 445-453
DOI 10.1159/000499403, PubMed 31768369

Stene-Johansen I, Bragadóttir R, Petrovski BÉ, Petrovski G (2019)
Macular Hole Surgery Using Gas Tamponade-An Outcome from the Oslo Retrospective Cross-Sectional Study
J Clin Med, 8 (5)
DOI 10.3390/jcm8050704, PubMed 31108955

Publications 2018

Navaratnam J, Dedi L, Tjølsen AM, Bragadóttir R (2018)
Identification of Dietzia Species in a Patient with Endophthalmitis following Penetrating Injury with Retained Intraocular Metallic Foreign Body
Case Rep Infect Dis, 2018, 3027846
DOI 10.1155/2018/3027846, PubMed 30356339

Salvanos P, Moe MC, Utheim TP, Bragadóttir R, Kerty E (2018)
ULTRA-WIDE-FIELD FUNDUS IMAGING IN THE DIAGNOSIS AND FOLLOW-UP OF SUSAC SYNDROME
Retin Cases Brief Rep, 12 (3), 234-239
DOI 10.1097/ICB.0000000000000470, PubMed 27828899

Publications 2017

Berg K, Roald AB, Navaratnam J, Bragadóttir R (2017)
An 8-year follow-up of anti-vascular endothelial growth factor treatment with a treat-and-extend modality for neovascular age-related macular degeneration
Acta Ophthalmol, 95 (8), 796-802
DOI 10.1111/aos.13522, PubMed 28926190

Maguire MG, Shaffer J, Ying GS, Chakravarthy U, Berg K, Bragadottir R, Decullier E, Huot L, Kodjikian L, Martin DF, Reeves BC, Rogers CA, Schauwvlieghe ASME, Schlingemann RO, Bevacizumab-Ranibizumab Int Trials (2017)
Serious Adverse Events with Bevacizumab or Ranibizumab for Age-Related Macular Degeneration: Meta-analysis of Individual Patient Data
Ophthalmol. Retina, 1 (5), 375-381
DOI 10.1016/j.oret.2016.12.015

Publications 2016

Bragadóttir R, Berg K, Pedersen TR (2016)
Reply
Ophthalmology, 123 (2), e16
DOI 10.1016/j.ophtha.2015.08.034, PubMed 26802718

Publications 2015

Berg K, Hadzalic E, Gjertsen I, Forsaa V, Berger LH, Kinge B, Henschien H, Fossen K, Markovic S, Pedersen TR, Sandvik L, Bragadóttir R (2015)
Ranibizumab or Bevacizumab for Neovascular Age-Related Macular Degeneration According to the Lucentis Compared to Avastin Study Treat-and-Extend Protocol: Two-Year Results
Ophthalmology, 123 (1), 51-9
DOI 10.1016/j.ophtha.2015.09.018, PubMed 26477842

Publications 2014

Berg K, Pedersen TR, Sandvik L, Bragadóttir R (2014)
Comparison of ranibizumab and bevacizumab for neovascular age-related macular degeneration according to LUCAS treat-and-extend protocol
Ophthalmology, 122 (1), 146-52
DOI 10.1016/j.ophtha.2014.07.041, PubMed 25227499

Publications 2013

Salvanos P, Navaratnam J, Ma J, Bragadóttir R, Moe MC (2013)
Ultra-widefield autofluorescence imaging in the evaluation of scleral buckling surgery for retinal detachment
Retina, 33 (7), 1421-7
DOI 10.1097/IAE.0b013e318283138d, PubMed 23549096

Publications 2009

Seiler MJ, Aramant RB, Seeliger MW, Bragadottir R, Mahoney M, Narfstrom K (2009)
Functional and structural assessment of retinal sheet allograft transplantation in feline hereditary retinal degeneration
Vet Ophthalmol, 12 (3), 158-69
DOI 10.1111/j.1463-5224.2009.00693.x, PubMed 19392875

Selmer KK, Grøndahl J, Riise R, Brandal K, Braaten O, Bragadottir R, Undlien DE (2009)
Autosomal dominant pericentral retinal dystrophy caused by a novel missense mutation in the TOPORS gene
Acta Ophthalmol, 88 (3), 323-8
DOI 10.1111/j.1755-3768.2008.01465.x, PubMed 19183411

Publications 2008

Sundling V, Gulbrandsen P, Bragadottir R, Bakketeig LS, Jervell J, Straand J (2008)
Suspected retinopathies in Norwegian optometric practice with emphasis on patients with diabetes: a cross-sectional study
BMC Health Serv Res, 8, 38
DOI 10.1186/1472-6963-8-38, PubMed 18261204

Publications 2007

Fosmark DS, Bragadóttir R, Stene-Johansen I, Berg JP, Berg TJ, Lund T, Sandvik L, Hanssen KF (2007)
Increased vitreous levels of hydroimidazolone in type 2 diabetes patients are associated with retinopathy: a case-control study
Acta Ophthalmol Scand, 85 (6), 618-22
DOI 10.1111/j.1600-0420.2007.00913.x, PubMed 17488318

Grøndahl J, Riise R, Heiberg A, Leren T, Christoffersen T, Bragadottir R (2007)
Autosomal dominant retinitis pigmentosa in Norway: a 20-year clinical follow-up study with molecular genetic analysis. Two novel rhodopsin mutations: 1003delG and I179F
Acta Ophthalmol Scand, 85 (3), 287-97
DOI 10.1111/j.1600-0420.2006.00820.x, PubMed 17488458

Klassen H, Schwartz PH, Ziaeian B, Nethercott H, Young MJ, Bragadottir R, Tullis GE, Warfvinge K, Narfstrom K (2007)
Neural precursors isolated from the developing cat brain show retinal integration following transplantation to the retina of the dystrophic cat
Vet Ophthalmol, 10 (4), 245-53
DOI 10.1111/j.1463-5224.2007.00547.x, PubMed 17565557

Sundling V, Gulbrandsen P, Bragadottir R, Bakketeig LS, Jervell J, Straand J (2007)
Optometric practice in Norway: a cross-sectional nationwide study
Acta Ophthalmol Scand, 85 (6), 671-6
DOI 10.1111/j.1600-0420.2007.00929.x, PubMed 17408386

Publications 2005

Narfström K, Vaegan, Katz M, Bragadottir R, Rakoczy EP, Seeliger M (2005)
Assessment of structure and function over a 3-year period after gene transfer in RPE65-/- dogs
Doc Ophthalmol, 111 (1), 39-48
DOI 10.1007/s10633-005-3159-0, PubMed 16502306

Slettedal JK, Bragadóttir R (2005)
Total iris expulsion through a sutureless cataract incision due to vomiting
Acta Ophthalmol Scand, 83 (1), 111-2
DOI 10.1111/j.1600-0420.2005.00391.x, PubMed 15715569

Publications 2003

Bragadóttir R, Narfström K (2003)
Lens sparing pars plana vitrectomy and retinal transplantation in cats
Vet Ophthalmol, 6 (2), 135-9
DOI 10.1046/j.1463-5224.2003.00280.x, PubMed 12753615

Ford M, Bragadóttir R, Rakoczy PE, Narfström K (2003)
Gene transfer in the RPE65 null mutation dog: relationship between construct volume, visual behavior and electroretinographic (ERG) results
Doc Ophthalmol, 107 (1), 79-86
DOI 10.1023/a:1024431827812, PubMed 12906125

Narfström K, Bragadóttir R, Redmond TM, Rakoczy PE, van Veen T, Bruun A (2003)
Functional and structural evaluation after AAV.RPE65 gene transfer in the canine model of Leber's congenital amaurosis
Adv Exp Med Biol, 533, 423-30
DOI 10.1007/978-1-4615-0067-4_54, PubMed 15180294

Narfström K, Katz ML, Bragadottir R, Seeliger M, Boulanger A, Redmond TM, Caro L, Lai CM, Rakoczy PE (2003)
Functional and structural recovery of the retina after gene therapy in the RPE65 null mutation dog
Invest Ophthalmol Vis Sci, 44 (4), 1663-72
DOI 10.1167/iovs.02-0595, PubMed 12657607

Narfström K, Katz ML, Ford M, Redmond TM, Rakoczy E, Bragadóttir R (2003)
In vivo gene therapy in young and adult RPE65-/- dogs produces long-term visual improvement
J Hered, 94 (1), 31-7
DOI 10.1093/jhered/esg015, PubMed 12692160

Publications 1998

Jarkman S, Kato M, Bragadóttir R (1998)
Effects of pituitary adenylate-cyclase-activating polypeptide on the direct-current electroretinogram of the rabbit eye
Ophthalmic Res, 30 (4), 199-206
DOI 10.1159/000055476, PubMed 9667050

Publications 1997

Bragadóttir R, Kato M, Jarkman S (1997)
Serotonin elevates the c-wave of the electroretinogram of the rabbit eye by increasing the transepithelial potential
Vision Res, 37 (18), 2495-503
DOI 10.1016/s0042-6989(97)00050-3, PubMed 9373681

Publications 1995

Bragadóttir R, Jarkman S (1995)
A cyclic adenosine monophosphate agonist elevates the b- and c-waves of the rabbit direct-current electroretinogram
Doc Ophthalmol, 90 (3), 291-303
DOI 10.1007/BF01203864, PubMed 8846737

Bragadóttir R, Jarkman S (1995)
Effects of PhXA41, a prostaglandin analogue, and PGF2 alpha on the corneal and intraretinal d.c. electroretinogram (ERG) of the albino rabbit eye
Curr Eye Res, 14 (12), 1073-80
DOI 10.3109/02713689508995812, PubMed 8974836

Jarkman S, Bragadóttir R (1995)
Adrenergic effects on the corneal and intraretinal direct-current electroretinogram and on the standing potential of albino rabbit eyes
Doc Ophthalmol, 89 (3), 251-66
DOI 10.1007/BF01203379, PubMed 7555593

Kato M, Bragadóttir R, Jarkman S, Nilsson SE (1995)
Effects of quisqualic acid on the corneal and intraretinal direct-current electroretinogram and on the standing potential of the rabbit eye
Doc Ophthalmol, 91 (4), 349-62
DOI 10.1007/BF01214653, PubMed 8899305