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Occult Macular Dystrophy

OMD


Presentation

  • From these findings, a staging system for this subset of Stargardt disease presenting with central cone dysfunction was developed and presented herein.[ncbi.nlm.nih.gov]
Asymptomatic
  • Clinical data of the four asymptomatic cases and three symptomatic patients in the same families were reviewed. The three asymptomatic cases did not have any visual symptoms in either eye, and one was unilaterally affected.[ncbi.nlm.nih.gov]
  • Clinical and tomographic results in the three asymptomatic relatives were normal.[ingentaconnect.com]
  • The clinically unaffected and asymptomatic family members did not agree for further evaluation with SD-OCT and mfERG.[ojoonline.org]
  • The complete penetrance autosomal dominant mode of inheritance is often challenged by a lack of parental genetic material, asymptomatic carrier relatives, and other mitigating factors.[molvis.org]
Italian
  • The present study assessed the role of mutations in the RP1L1 gene in an Italian family with OMD.[ncbi.nlm.nih.gov]
  • Occult macular dystrophy in an Italian family carrying a mutation in the RP1L1 gene. Mol. Med. Rep. 13, 2308–2312. doi: 10.3892/mmr.2016.4784 PubMed Abstract CrossRef Full Text Google Scholar Riveiro-Alvarez, R., Lopez-Martinez, M.[journal.frontiersin.org]
Turkish
  • Işıl Sayman Muslubaş, Serra Arf, Mümin Hocaoğlu, Hakan Özdemir, Murat Karaçorlu Turkish Journal of Ophthalmology 2016, 46 (2): 91-94 27800268 Occult macular dystrophy is an inherited macular dystrophy characterized by a progressive decline of bilateral[readbyqxmd.com]
  • Molecular analysis of the ABCA4 gene in Turkish patients with Stargardt disease and retinitis pigmentosa. Hum Mutat. 2004;23: 523. View Article Google Scholar 40. Rozet JM, Gerber S, Souied E, Perrault I, Châtelin S, Ghazi I et al.[journals.plos.org]
Collapse
  • Over time, the foveal potential space on spectral domain optical coherence tomography collapsed, and three patients developed RPE atrophy and visible lipofuscin flecks.[ncbi.nlm.nih.gov]
Visual Impairment
  • The degree of photoreceptor alterations was correlated with the severity of visual impairment. Clinical and tomographic results in the three asymptomatic relatives were normal.[ncbi.nlm.nih.gov]
  • The degree of visual impairment is quite variable, with acuities ranging from 20/20 to 20/400.[healio.com]
  • Most importantly, early-stage OMD, with no visual impairment exhibits phenotypic overlap with numerous retinal diseases, such as cone-rod dystrophy, early changes in age-related macular degeneration and Stargardt’s disease (SD) ( Pang and Lam, 2002 ),[journal.frontiersin.org]
  • Many patients with IRDs present as sporadic cases without definitive family history of visual impairment, precluding the assessment of mode of inheritance.[molvis.org]
Vision Disorder
  • ABCA4 - Bull's eye maculopathie This test is available for the following conditions: Conditions Vision impairment / blindness Macula dystrophy This product is also part of the following panels: WES Mendelian inherited disorders (99.5% **) WES vision disorders[order.radboudumc.nl]
  • Source MeSH Adult Eye Proteins Humans Macular Degeneration Male Mutation Vision Disorders Pub Type(s) Case Reports Journal Article Observational Study Language eng PubMed ID 28195981 Citation Fu, Yun, et al.[unboundmedicine.com]
Visual Acuity Decreased
  • As the loss of photoreceptor function overcomes local redundancy and approaches a critical threshold, visual acuity decreases. 7 Brockhurst and Sandberg demonstrated that the reduction in foveal thickness in patients with OMD is from loss of the outer[healio.com]
Withdrawn
  • Name Occult Macular Dystrophy Synonyms OMD Classification eye, genetic Phenotypes Abnormal multifocal electroretinogram ; Autosomal dominant inheritance ; Macular dystrophy ; Slow decrease in visual acuity Associated Genes RP1L1 (Withdrawn symbols: DCDC4B[mousephenotype.org]
Apathy
  • Jacobson SG, Voigt WJ, Parel JM, Apathy PP, Nghiem-Phu L, Myers SW, et al. Automated light- and dark-adapted perimetry for evaluating retinitis pigmentosa. Ophthalmology. 1986;93:1604–11. CrossRef PubMed 36.[springermedizin.de]
  • Jacobson SG, Voigt WJ, Parel JM, Apathy PP, Nghiem-Phu L, Myers SW, et al. Automated light- and dark-adapted perimetry for evaluating retinitis pigmentosa. Ophthalmology. 1986;93:1604–11. CrossRef PubMed Google Scholar 36.[link.springer.com]
Excitement
  • We evaluated the FAF images in 13 eyes of 7 patients with autosomal dominant OMD by confocal scanning laser ophthalmoscopy with excitation at 488 nm and emission more than 500 nm.[ncbi.nlm.nih.gov]

Treatment

  • Put the very latest scientific and genetic discoveries, diagnostic imaging methods, drug therapies, treatment recommendations, and surgical techniques to work in your practice.[books.google.com]
  • If emerging therapies for Stargardt disease succeed, early recognition and treatment of patients with preserved foveal photoreceptor and RPE cell bodies may yield a more favorable visual prognosis.[ncbi.nlm.nih.gov]
  • CLOSE Medical Disclaimer The medical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.[diseaseinfosearch.org]
  • Treatment References Article Title: CLINICAL CHARACTERISTICS OF OCCULT MACULAR DYSTROPHY IN FAMILY WITH MUTATION OF RP1L1 GENE Tsunoda K, Usui T, Hatase T, Yamai S, Fujinami K, Hanazono G, Shinoda K, Ohde H, Akahori M, Iwata T, Miyake Y.[disorders.eyes.arizona.edu]
  • In vitro and in vivo studies of experimental model systems pertaining to the mechanisms of a variety of diseases offer researchers the necessary tools and knowledge with which to aid the diagnosis and treatment of human diseases.[ingentaconnect.com]

Prognosis

  • If emerging therapies for Stargardt disease succeed, early recognition and treatment of patients with preserved foveal photoreceptor and RPE cell bodies may yield a more favorable visual prognosis.[ncbi.nlm.nih.gov]
  • […] of patients with OMD as a function of time to evaluate longitudinal photoreceptors changes and their correlation to other imaging findings, allowing diagnoses that are more precise and contributing to a better understanding of disease progression and prognosis[scielo.br]
  • It has a reasonable prognosis. It is often called Best disease, especially in younger people.[goodhopeeyeclinic.org.uk]
  • Visual function abnormalities and prognosis in eyes with age-related geographic atrophy of the mácula and good visual acuity. Ophthalmology 1997;104:1677-91. 56.[dmremonterrey.blogspot.com]
  • This study not only provides a guide to the attending clinician on the management and prognosis of the patient, but also extends the phenotypic spectrum of RP1L1 -associated OMD and enhances our current understanding of the genetic basis of OMD.[journal.frontiersin.org]

Etiology

  • Based on this data, Occult Macular Dystrophy may in fact represent more than one condition with multiple etiologies. Several etiologies are considered.[ncbi.nlm.nih.gov]
  • A significant number of sporadic cases occur, however, which suggests new mutations are relatively common or that there is etiologic heterogeneity.[disorders.eyes.arizona.edu]
  • Foveal cone electroretinograms in patients with central visual loss of unexplained etiology. Arch Ophthalmol 1992 ; 110 : 1568 –70. Miyake Y , Horiguchi M, Tomita N, et al. Occult macular dystrophy. Am J Ophthalmol 1996 ; 122 : 644 –53.[bjo.bmj.com]
  • CEP164 Nephronophthisis CEP250 recessive Usher syndrome CEP290/BBS14 Bardet-Biedl syndrome, Leber congenital amaurosis, Joubert syndrome, Senior-Loken syndrome, Meckel syndrome CERKL Retinitis pigmentosa CFH age-related macular degeneration, complex etiology[molecularvisionlab.com]

Epidemiology

  • Epidemiology. In: Berger JW, Fine SL, Maguire MG, eds. Age-Related Macular Degeneration. St. Louis: Mosby, Inc., 1999:31-55. 24. Mares-Perlman JA, Fisher AI, Klein R, et al.[dmremonterrey.blogspot.com]
  • Congenital eye malformations: clinical-epidemiological analysis of 1,124,654 consecutive births in Spain. Am J Med Genet. 1998;75:497–504. View Article PubMed Google Scholar Kumar P, Henikoff S, Ng PC.[bmcmedgenet.biomedcentral.com]
Sex distribution
Age distribution

Pathophysiology

  • Morphologic changes of the retina including deformity of the OS/IS boundary of the photoreceptors, disruption of the ELM and decreased foveal thickness may be important characteristics to consider when determining the pathophysiology and diagnosing criteria[ncbi.nlm.nih.gov]
  • Comprehensively updated to reflect everything you need to know regarding retinal diagnosis, treatment, development, structure, function, and pathophysiology, this monumental ophthalmology reference work equips you with expert answers to virtually any[books.google.com]
  • Because only the central cone system is impaired and the peripheral cone, peripheral rod, and central rod systems remain intact during the early stage of this disorder, the most suitable pathophysiological name for occult macular dystrophy may be "central[centrallakesclinic.biz]
  • Macular and retinal dysfunction of unknown origin in adults with normal fundi: evidence for an autoimmune pathophysiology. Exp Mol Pathol . 2008;84:90–101. doi:10.1016/j.yexmp.2007.10.006 [CrossRef] Witkin AJ, Ko TH, Fujimoto JG, et al.[healio.com]

Prevention

  • ., Interdisciplinary Center of Ophthalmic Preventive Medicine and Imaging, Department of Ophthalmology, Friedrich-Alexander-University, Erlangen, Germany ICD10-Code: H35.3 Path: Choroid - Age-related Macular Degeneration (AMD, ARMD) - Occult Subfoveal[atlasophthalmology.net]
  • Centers for Disease Control and Prevention (CDC), approximately 6.5 percent of Americans age 40 and older have some degree of macular degeneration.[allaboutvision.com]
  • The Alpha-Tocopherol, Beta Carotene Cancer Prevention Study Group. N Engl J Med 1994;330:1029-35. 57. Omenn GS, Goodman GE, Thornquist MD, et al. Effects of a combination of beta carotene and vitamin A on lung cancer and cardiovascular disease.[dmremonterrey.blogspot.com]
  • Important to note, the nature of the data prevents the assignment of variants to specific individuals. As an example, this means that it is not possible to discern whether two unique SNV loci originally derive from two individuals or one.[molvis.org]

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