14 results on '"Veronika Vaclavik"'
Search Results
2. Longitudinal case study and phenotypic multimodal characterization of McArdle disease-linked retinopathy: insight into pathomechanisms
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Pascal Escher, Francine Naderi, André Schaller, and Veronika Vaclavik
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Male ,0301 basic medicine ,medicine.medical_specialty ,genetic structures ,Posterior pole ,Visual Acuity ,030105 genetics & heredity ,03 medical and health sciences ,0302 clinical medicine ,Retinal Diseases ,Ophthalmology ,Electroretinography ,medicine ,Humans ,Glycogen storage disease ,Longitudinal Studies ,Fluorescein Angiography ,Genetics (clinical) ,medicine.diagnostic_test ,business.industry ,Fundus photography ,Dystrophy ,Middle Aged ,medicine.disease ,eye diseases ,Phenotype ,Pediatrics, Perinatology and Child Health ,Retinal Cone Photoreceptor Cells ,030221 ophthalmology & optometry ,Glycogen Storage Disease Type V ,sense organs ,business ,Tomography, Optical Coherence ,Glycogen storage disease type V ,Photopic vision ,Retinopathy - Abstract
Background: We present a longitudinal clinical characterization of PYGM-linked pattern dystrophy in an adult male patient.Materials and Methods: A patient affected by McArdle disease (glycogen storage disease type V) and homozygous for the nonsense variant PYGM c.148C>T p.(Arg50*) underwent ophthalmic examinations over a 9-year-interval, including fundus photography, fundus autofluorescence, optical coherence tomography (OCT), OCT-angiography and electroretinography (ERG).Results: At age 52, the patient was asymptomatic but yellow flecks were first observed in the macula of both eyes. This yellow flecks at the posterior pole progressed towards a pattern-like dystrophy over a 5-year-period. By fundus autofluorescence imaging the appearance of new hyperautofluorescent flecks and the extension of existing ones was observed over time. Concomitantly, a slow progression of the size of atrophic areas was seen at the posterior pole. Scotopic ERGs were within normal limits, but photopic Flicker responses were decreased, indicating reduced cone function.Conclusions: This additional case of PYGM-linked pattern dystrophy further confirms retinopathy as a clinical phenotype associated with McArdle disease. PYGM expression pattern suggests a disease mechanism involving impaired glycogen metabolism both in the retinal pigment epithelium and in cone photoreceptors.
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- 2020
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3. Crystals deposits in the anterior and posterior lens cortex in Bietti corneo-retinal dystrophy
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Veronika Vaclavik, Francis L. Munier, Hoai Viet Tran, Alexandre Moulin, Daniel F. Schorderet, and Youssr Louati
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Adult ,medicine.medical_specialty ,Visual acuity ,genetic structures ,Posterior pole ,Visual Acuity ,Compound heterozygosity ,Slit Lamp Microscopy ,Retinal Diseases ,Cortex (anatomy) ,Ophthalmology ,Cornea ,medicine ,Humans ,Cytochrome P450 Family 4 ,Genetics (clinical) ,Aged ,Aged, 80 and over ,Corneal Dystrophies, Hereditary ,Retina ,business.industry ,Optical Imaging ,Dystrophy ,Lens Cortex, Crystalline ,Middle Aged ,eye diseases ,medicine.anatomical_structure ,Lens (anatomy) ,Pediatrics, Perinatology and Child Health ,Mutation ,Female ,sense organs ,medicine.symptom ,business ,Crystallization ,Tomography, Optical Coherence - Abstract
Background Whereas crystals deposit in the retina, the cornea and limbus in Bietty corneo-retinal dystrophy (BCD) is now well established and documented, only two published cases report their findings in the lens and no cases deep in the lens cortex. Material and methods Four consecutive adult patients from three different unrelated families presenting lens crystals associated with advanced genetically confirmed BCD were enrolled with advanced disease and long follow up (>12 years). Demographics, visual acuity, slit lamp biomicroscopy, lens and posterior pole photography, optical coherence tomography (OCT), autofluorescence, and screening for CYP4V2 type of mutation were performed. The setting was Jules Gonin Eye Hospital, Switzerland, between 1.1 2013 and 1.11. 2019. Results All patients were European women. The ages ranged from 40 to 81 years. Best Snellen visual acuity ranged from light perception to 1.0. All patients presented with limbus and retinal crystals deposit that disappeared over time and the development of severe chorioretinal atrophy. With long-term follow up, multiple crystal-like deposits appeared in the anterior, posterior lens capsule and cortex. All patients, but one, had homozygous or compound heterozygous mutations in CYP4V2 gene. Conclusions To the best of our knowledge, there are no published cases of crystal deposits in the cortex of the lens of patients diagnosed with BCD associated with CYP4V2 gene mutation. This could be a feature of advanced BCD, and their presence in the lens cortex questions the hypothesis of floating deposits from posterior pole although their exact etiology remains to be determined.
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- 2021
4. Malattia Leventinese: EFEMP1 R345W Variant Is a Hot Spot Mutation, Not a Founder Mutation
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Veronika Vaclavik, Daniel F. Schorderet, and Hoai Viet Tran
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Genetics ,Adult ,medicine.medical_specialty ,Extracellular Matrix Proteins ,business.industry ,Fundus Oculi ,Optic Disk Drusen ,DNA Mutational Analysis ,Hot spot (veterinary medicine) ,DNA ,Retina ,Ophthalmology ,Mutation (genetic algorithm) ,Mutation ,Electroretinography ,Medicine ,Humans ,Female ,Fluorescein Angiography ,business ,Founder mutation ,MALATTIA LEVENTINESE ,Tomography, Optical Coherence - Published
- 2020
5. Clinical and Genetic Findings of Autosomal Recessive Bestrophinopathy (ARB)
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Ahmed Turki, Yosra Falfoul, Stefan Wyrsch, Maria Helfenstein, Margarita G. Todorova, Daniel F. Schorderet, Imen Habibi, Veronika Vaclavik, Khaled El Matri, and Leila El Matri
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0301 basic medicine ,Male ,Visual acuity ,genetic structures ,Eye ,EOG light rise ,0302 clinical medicine ,BEST1 ,Medicine ,Bestrophins ,Child ,Genetics (clinical) ,Bestrophinopathy ,Eye Diseases, Hereditary ,Phenotype ,Molecular analysis ,Pedigree ,best1 ,medicine.anatomical_structure ,Female ,medicine.symptom ,Autosomal recessive bestrophinopathy ,Optic disc ,Adult ,medicine.medical_specialty ,Adolescent ,lcsh:QH426-470 ,phenotype ,Retinitis ,arb ,Article ,03 medical and health sciences ,Young Adult ,bestrophinopathy ,Retinal Diseases ,vitelliform macular dystrophy ,Ophthalmology ,Genetics ,Electroretinography ,Humans ,Genetic Association Studies ,business.industry ,Correction ,mutations ,medicine.disease ,eye diseases ,Electrooculography ,lcsh:Genetics ,best1 gene ,030104 developmental biology ,Mutation ,030221 ophthalmology & optometry ,sense organs ,business - Abstract
Mutations in BEST1 cause several phenotypes including autosomal dominant (AD) Best vitelliform macular dystrophy type 2 (BVMD), AD vitreo-retino-choroidopathy (ADVIRC), and retinitis pigmentosa-50 (RP50). A rare subtype of Bestrophinopathy exists with biallelic mutations in BEST1. Its frequency is estimated to be 1/1,000,000 individuals. Here we report 6 families and searched for a genotype-phenotype correlation. All patients were referred due to reduced best-corrected visual acuity (BCVA), ranging from 0.1/10 to 3/10. They all showed vitelliform lesions located at the macula, sometimes extending into the midperiphery, along the vessels and the optic disc. Onset of the disease varied from the age of 3 to 25 years. Electrooculogram (EOG) revealed reduction in the EOG light rise in all patients. Molecular analysis revealed previously reported mutations p.(E35K), (E35K), p.(L31M), (L31M), p.(R141H), (A195V), p.(R202W), (R202W), and p.(Q220*), (Q220*) in five families. One family showed a novel mutation: p.(E167G), (E167G). All mutations were heterozygous in the parents. In one family, heterozygous children showed various reductions in the EOG light rise and autofluorescent deposits. Autosomal recessive Bestrophinopathy (ARB), although rare, can be recognized by its phenotype and should be validated by molecular analysis. Genotype-phenotype correlations are difficult to establish and will require the analysis of additional cases.
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- 2019
6. THE SPECTRUM OF AMALRIC TRIANGULAR CHOROIDAL INFARCTION
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Aaron Nagiel, Julia Nemiroff, Nopasak Phasukkijwatana, Eric R. Holz, Veronika Vaclavik, and David Sarraf
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Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Giant Cell Arteritis ,Infarction ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Optical coherence tomography ,medicine ,Humans ,Macula Lutea ,Fluorescein Angiography ,Child ,Retrospective Studies ,Retrobulbar Hemorrhage ,Aged, 80 and over ,medicine.diagnostic_test ,Choroid ,business.industry ,Retrospective cohort study ,General Medicine ,Fluorescein angiography ,medicine.disease ,eye diseases ,Ophthalmology ,Giant cell arteritis ,030104 developmental biology ,medicine.anatomical_structure ,Angiography ,030221 ophthalmology & optometry ,Female ,sense organs ,Radiology ,business ,Tomography, Optical Coherence - Abstract
To describe the multimodal imaging findings, including optical coherence tomography angiography analysis, and spectrum of etiologies associated with Amalric triangular choroidal infarction. This study is a multicenter, retrospective, observational case series review of the clinical and multimodal imaging findings for six patients with Amalric triangular choroidal infarction. Six patients (10 eyes) with Amalric triangular choroidal infarction were enrolled. Patients' ages ranged from 7 years to 90 years (mean 54 years, median 60 years). Wedge-shaped or triangular areas of choroidal ischemia were evident with fluorescein angiography in all patients and with indocyanine green angiography in one patient. Optical coherence tomography angiography demonstrated choriocapillaris flow reduction that colocalized with outer retinal structural abnormalities with en face optical coherence tomography and corresponded with the triangular zones of choroidal infarction identified with fluorescein angiography in one patient. Etiologies included giant cell arteritis in three cases: traumatic carotid dissection, traumatic retrobulbar hemorrhage, and malignant hypertension secondary to lupus-associated nephropathy. The Amalric triangular syndrome of choroidal infarction can occur as a result of a spectrum of etiologies, especially giant cell arteritis. Infarction is evident on traditional angiography in all cases. Optical coherence tomography angiography may provide a simple noninvasive tool to evaluate choroidal ischemia.
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- 2017
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7. CRX-linked macular dystrophy with intrafamilial variable expressivity
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H. Viet Tran, Veronika Vaclavik, Daniel F. Schorderet, Francis L. Munier, and Khaled Romdhane
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0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,Heterozygote ,Visual acuity ,Nonsense mutation ,Posterior pole ,Physical examination ,Disease ,Severity of Illness Index ,03 medical and health sciences ,Macular Degeneration ,Young Adult ,0302 clinical medicine ,Atrophy ,Ophthalmology ,medicine ,Humans ,Genetics (clinical) ,Homeodomain Proteins ,medicine.diagnostic_test ,business.industry ,Macular dystrophy ,medicine.disease ,Prognosis ,Pedigree ,030104 developmental biology ,Codon, Nonsense ,Pediatrics, Perinatology and Child Health ,Mutation (genetic algorithm) ,030221 ophthalmology & optometry ,Trans-Activators ,Female ,medicine.symptom ,business - Abstract
Background: We present a macular dystrophy of differing severity in a single kindred caused by a heterozygous nonsense mutation in CRX.Case report: A 21-year-old Caucasian male from a Swiss family was investigated for decreasing central visual acuity associated with dischromatopsia. Clinical examination revealed posterior pole atrophy, including the maculopapillary bundle. Multimodal imaging, including autofluorescence, showed a hyperautofluorescent paramacular ring in both eyes. Genetic analysis identified a c.313C>T, p.Q105* nonsense mutation in CRX. The same mutation was identified in his father and uncle. Both of them showed signs of the disease, however with different severity.Conclusion: We describe an intrafamilial variable expressivity of a CRX mutation causing an isolated macular dystrophy.
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- 2018
8. Swiss Family with Dominant Stargardt Disease Caused by a Recurrent Mutation in the ELOVL4 Gene
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Hoai Viet Tran, E. Moret, F. Marcelli, Daniel F. Schorderet, Francis L. Munier, Veronika Vaclavik, and Marc Abitbol
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Genetic Markers ,Male ,0301 basic medicine ,Web of science ,Diagnosis, Differential ,Macular Degeneration ,Young Adult ,03 medical and health sciences ,medicine ,Humans ,Stargardt Disease ,Genetic Predisposition to Disease ,Recurrent mutation ,Eye Proteins ,Gene ,Genes, Dominant ,Genetics ,business.industry ,Membrane Proteins ,medicine.disease ,Stargardt disease ,Ophthalmology ,030104 developmental biology ,Genetic marker ,Mutation ,Mutation (genetic algorithm) ,Female ,business ,Switzerland - Abstract
Reference EPFL-ARTICLE-219311doi:10.1055/s-0042-102585View record in Web of Science Record created on 2016-07-19, modified on 2017-05-12
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- 2016
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9. Retinal Dystrophy In The Oculo-auricular Syndrome Due to HMX1 Mutation
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François-Xavier Borruat, Francis L. Munier, Veronika Vaclavik, and Daniel F. Schorderet
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Male ,Retinal degeneration ,medicine.medical_specialty ,genetic structures ,Visual Acuity ,Fundus (eye) ,03 medical and health sciences ,0302 clinical medicine ,Ophthalmology ,Retinal Dystrophies ,Electroretinography ,otorhinolaryngologic diseases ,medicine ,Rod-cone dystrophy ,Humans ,Eye Abnormalities ,Ear, External ,Fluorescein Angiography ,Child ,Genetics (clinical) ,Aged ,Retrospective Studies ,030304 developmental biology ,Homeodomain Proteins ,0303 health sciences ,medicine.diagnostic_test ,business.industry ,Dystrophy ,Syndrome ,Fluorescein angiography ,medicine.disease ,eye diseases ,Microcornea ,Mutation ,Pediatrics, Perinatology and Child Health ,030221 ophthalmology & optometry ,sense organs ,Visual Fields ,business ,Erg ,Tomography, Optical Coherence ,Photoreceptor Cells, Vertebrate ,Transcription Factors - Abstract
PURPOSE To report on the clinical and electrophysiological findings in a patient with oculo auricular syndrome due to HMX1 mutation with a follow up of 12 years. BACKGROUND Oculo auricular syndrome (MIM: 612109) is a rare developmental recessive condition affecting the eye and external ear that results from a mutation in the HMX1 gene. Previously described ocular abnormalities include bilateral microcornea posterior synechiae cataract chorioretinal colobomas and rod cone dystrophy. METHODS Retrospective chart review of an affected boy followed over a period of 12 years who had serial complete ophthalmologic examinations fundus photographs Goldmann perimetry and full field electroretinograms (ERG). RESULTS Initial ERG tracings revealed generalized rod more than cone dysfunction. Thereafter a rapid deterioration in rod and cone function was detected on follow up ERGs. CONCLUSION The retinal degeneration in the recessively inherited oculo auricular syndrome is a progressive rod cone dystrophy. Visual prognosis is guarded considering the progressive nature of the retinal dystrophy in early infancy.
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- 2011
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10. Malattia Leventinese (Autosomal Dominant Drusen)
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Francis L. Munier and Veronika Vaclavik
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medicine.medical_specialty ,Visual acuity ,genetic structures ,Photophobia ,business.industry ,Confluent drusen ,Drusen ,medicine.disease ,eye diseases ,Ophthalmology ,Medicine ,Missense mutation ,Metamorphopsia ,Macular drusen ,sense organs ,medicine.symptom ,business ,MALATTIA LEVENTINESE - Abstract
Malattia Leventinese, also known as dominant radial drusen or Doyne honeycomb retinal dystrophy, was first described in patients living in the Leventine Valley in canton Ticino of southern Switzerland in 1925. A missense mutation (Arg345Trp) in the gene EFEMP1 was discovered to be causative for both conditions. Malattia Leventinese is reported to be autosomal dominant with variable expressivity phenotype. Characteristic clinical findings consist of radial macular drusen, large confluent drusen, and juxtapapillary drusen, which can be an isolated finding. Early visual symptoms, typically starting at age of 30–50 years, include reduced central vision, photophobia, and metamorphopsia. The vision gradually deteriorates over many years. No curative treatment is available for ML; however, some prophylactic argon laser treatment has been promising in improving visual acuity and reducing the drusen volume. Anti-vascular endothelial growth (VEGF) treatment is efficient in stabilizing a choroidal neovascular membrane.
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- 2016
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11. Novel maculopathy in patients with spinocerebellar ataxia type 1 autofluorescence findings and functional characteristics
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Aude Ambresin, Veronika Vaclavik, François-Xavier Borruat, and Francis L. Munier
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Male ,Spinocerebellar Ataxia Type 1 ,medicine.medical_specialty ,Visual Acuity ,Retinal Pigment Epithelium/pathology ,Ophthalmology ,Electroretinography ,Medicine ,Humans ,Nerve Tissue Proteins/genetics ,In patient ,Fluorescein Angiography ,Photoreceptor Cells, Vertebrate/pathology ,business.industry ,Optical Imaging ,Middle Aged ,medicine.disease ,Vision Disorders/diagnosis/etiology/genetics ,ddc:616.8 ,Nuclear Proteins/genetics ,Autofluorescence ,Macular Degeneration/diagnosis/etiology/genetics ,Optometry ,Maculopathy ,Visual Field Tests ,Scotoma/diagnosis ,business ,Trinucleotide Repeat Expansion ,Spinocerebellar Ataxias/complications/diagnosis/genetics ,Tomography, Optical Coherence - Published
- 2013
12. Bilateral giant macular schisis in a patient with enhanced S-cone syndrome from a family showing pseudo-dominant inheritance
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Christina Chakarova, A.G. Robson, G E Holder, Andrew R. Webster, S. S. Bhattacharya, Veronika Vaclavik, and A C Bird
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Retinal degeneration ,medicine.medical_specialty ,Retinal pigment epithelium ,medicine.diagnostic_test ,genetic structures ,business.industry ,Retinoschisis ,Anatomy ,medicine.disease ,Retinal Cone Photoreceptor Cells ,Sensory Systems ,Nyctalopia ,eye diseases ,Cellular and Molecular Neuroscience ,Ophthalmology ,medicine.anatomical_structure ,Pathognomonic ,medicine ,sense organs ,medicine.symptom ,business ,Erg ,Electroretinography - Abstract
Enhanced S-cone syndrome (ESCS) is a rare autosomal recessive disorder related to mutations in NR2E3. There is early nyctalopia with peripheral field loss and possible macular involvement with loss of central vision. 1 Signs include nummular pigmentary deposition at the level of the retinal pigment epithelium (RPE) around the vascular arcades and foveal schisis. There are no rods; most of an increased number of cones are short-wavelength sensitive. 2 ¿ 4 There are pathognomonic electroretinography (ERG) changes. NR2E3 encodes a transcription factor which promotes differentiation and survival ¿
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- 2008
13. Autofluorescence Findings in Acute Exudative Polymorphous Vitelliform Maculopathy
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Kenneth G.-J. Ooi, Veronika Vaclavik, Alan C. Bird, Andrew R. Webster, Graham E. Holder, and Anthony G. Robson
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Adult ,Male ,medicine.medical_specialty ,Visual acuity ,Eye disease ,Visual Acuity ,Fluorescence ,Ophthalmoscopy ,Retinal Diseases ,Ophthalmology ,Electroretinography ,Humans ,Medicine ,Fluorescein Angiography ,Pigment Epithelium of Eye ,medicine.diagnostic_test ,business.industry ,Exudates and Transudates ,Electrooculography ,Middle Aged ,medicine.disease ,Fluorescein angiography ,Autofluorescence ,Acute Disease ,Maculopathy ,Female ,medicine.symptom ,business ,Tomography, Optical Coherence - Published
- 2007
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14. Pattern Dystrophy With High Intrafamilial Variability Associated With Y141C Mutation In The Peripherin/Rds Gene And Successful Treatment Of Subfoveal Cnv Related To Multifocal Pattern Type With Anti-Vegf (Ranibizumab) Intravitreal Injections
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Hoai Viet Tran, Marie-Claire Gaillard, Veronika Vaclavik, Daniel F. Schorderet, and Francis L. Munier
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Male ,Vascular Endothelial Growth Factor A ,pattern dystrophy ,Visual acuity ,genetic structures ,Peripherins ,Visual Acuity ,Angiogenesis Inhibitors ,Fundus (eye) ,Polymerase Chain Reaction ,Intermediate Filament Proteins ,Fluorescein Angiography ,Aged, 80 and over ,Membrane Glycoproteins ,medicine.diagnostic_test ,General Medicine ,Middle Aged ,Fluorescein angiography ,Pedigree ,Phenotype ,Treatment Outcome ,Choroidal neovascularization ,Intravitreal Injections ,Retreatment ,Female ,medicine.symptom ,Tomography, Optical Coherence ,medicine.drug ,lucentis ,Adult ,medicine.medical_specialty ,peripherin/RDS ,Nerve Tissue Proteins ,Antibodies, Monoclonal, Humanized ,anti-VEGF treatment ,choroidal neovascularization ,Young Adult ,Ophthalmology ,Retinal Dystrophies ,Electroretinography ,medicine ,Humans ,ranibizumab ,Aged ,business.industry ,Fundus photography ,Macular degeneration ,medicine.disease ,eye diseases ,Mutation ,sense organs ,Ranibizumab ,business - Abstract
Objective: To identify disease causing mutation in three generations of a Swiss family with pattern dystrophy and high intrafamilial variability of phenotype. To assess the effect of intravitreal ranibizumab injections in the treatment of subfoveal choroidal neovascularization associated with pattern dystrophy in one patient. Methods: Affected family members were ascertained for phenotypic and genotypic characterization. Ophthalmic evaluations included fundus photography, autofluorescence imaging, optical coherence tomography, and International Society for Clinical Electrophysiology of Vision standard full-field electroretinography. When possible family members had genetic testing. The proband presented with choroidal neovascularization and had intravitreal injections as needed according to visual acuity and optical coherence tomography. Results: Proband had a multifocal type pattern dystrophy, and his choroidal neovascularization regressed after four intravitreal injections. The vision improved from 0.8 to 1.0, and optical coherence tomography showed complete anatomical restoration. A butterfly-shaped pattern was observed in her cousin, whereas a fundus pulverulentus pattern was seen in a second cousin. Aunt had a multifocal atrophic appearance, simulating geographic atrophy in age-related macular degeneration. The Y141C mutation was identified in the peripherin/RDS gene and segregated with disease in the family. Conclusion: This is the first report of marked intrafamilial variation of pattern dystrophy because of peripherin/RDS Y141C mutation. Intravitreal ranibizumab injections might be a valuable treatment for associated subfoveal choroidal neovascularization. RETINA 32:1942-1949, 2012
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