Edit concept Question Editor Create issue ticket

Lamellar Cataract

Zonular Cataract


Presentation

  • We present data on the recreation of the human lamellar cataract phenotype in transgenic mice.[ncbi.nlm.nih.gov]
  • It not only presents diverse pictures and images from clinical practice, it also includes the latest findings in the field.[books.google.com]
  • Clinical Correlations: Early onset cataracts that are inherited are often present to some degree at birth but may not be detected until later. Lamellar cataracts are usually detected in the first years of life but may be present at birth.[disorders.eyes.arizona.edu]
  • Discussion In the present case the child was a female and there was consanguinity of the parents. Dohlman and Larsson [3] also noted consanguinity of parents when females were affected.[ijo.in]
Arachnodactyly
  • The most common association, however, is Marfan's arachnodactyly. The purpose of the present communication is to report a rare case of anterior megalophthalmos associated with lamellar cataract and alkaptonuria.[ijo.in]
  • . - Marfan's syndrome: characterized by arachnodactyly, long limbs, and laxness of joints. - Weill-Marchesani syndrome: symptoms include short stature and brachydactyly. - Homocystinuria (metabolic disease): characterized by oligophrenia, osteoporosis[alpfmedical.info]
High Arched Palate
  • General examination revealed a mentally retarded moderately built and nourished child with a high arched palate. Local examination of both eyes showed large corneas [Figure - 1] with a horizontal diameter of 16 mm and vertical diameter of 15 mm.[ijo.in]
Purpura
  • Haug Browse recently published Learning/CME Learning/CME View all learning/CME CME Case 3-2019: A 70-Year-Old Woman with Fever, Headache, and Progressive Encephalopathy Caplacizumab Treatment for Acquired Thrombotic Thrombocytopenic Purpura Randomized[nejm.org]
Corneal Opacity
  • Purpose: To describe a new surgical technique for a patient with cataract combined with corneal opacity.[healio.com]
  • Other ocular features include nystagmus, strabismus, microphthalmos, corneal opacities, retinopathy, glaucoma and a small pupil that is difficult to dilate.[missionforvisionusa.org]
Iridodonesis
  • AC was deep and there was iridodonesis; There was a central lenticular opacity 6 mm in size [Figure - 1]. Intraocular pressure was 14.6 mm Hg sch and 17.3 mint Hg sch in RE and LE respectively. Fundi were normal.[ijo.in]
  • Diagnostic considerations: Cardinal symptoms include tremulous motion of the iris and lens when the eye moves (iridodonesis and phacodonesis). These symptoms are detectable under slit-lamp examination.[alpfmedical.info]
Encephalopathy
  • Haug Browse recently published Learning/CME Learning/CME View all learning/CME CME Case 3-2019: A 70-Year-Old Woman with Fever, Headache, and Progressive Encephalopathy Caplacizumab Treatment for Acquired Thrombotic Thrombocytopenic Purpura Randomized[nejm.org]

Workup

Treatment

  • Throughout the book, the pathology, examination, anesthesia, surgical treatment and nursing care of pediatric lens disorders are discussed in detail.[books.google.com]
  • Treatment Treatment Options: Visually significant opacities require surgery. Amblyopia, if present, should be treated early.[disorders.eyes.arizona.edu]
  • Given the rarity of these diseases, the treatments outlined in the abstracts are not always evidence based. The information in the abstracts isnot intended to replace existing local, regional or country specific recommendations and guidelines.[orpha.net]

Prognosis

  • Diagnosis and Prognosis: Cataracts are diagnosed by eye doctors but it is important that pediatricians and family doctors are involved as well to ensure that they are not part of a more generalized disorder.[disorders.eyes.arizona.edu]
  • Morphology:• The morphology of cataract is important for several reasons: it can give a clue to the age ofonset, to the visual prognosis, it may suggest heritability, and it may give a clue to the aetiology.[slideshare.net]
  • .  Most frequently AD, but maybe AR or X-linked  Better visual prognosis than coexisting ocular and systemic abnormalities  Classified to:  Zonular cataract: opacity occupies a discrete zone in the lens  Polar cataract: opacities occupy subcapsular[docsity.com]
  • Because onset is usually after the fixation reflex has been established, patients with lamellar cataracts have a better visual prognosis than patients with cataracts of earlier onset. Figure 23-3 Lamellar cataract.[entokey.com]
  • The prognosis is poorer in persons with other ocular or systemic involvement. Patient Education Removal of the cataract is only the beginning.[emedicine.medscape.com]

Etiology

  • Etiology : Genetic pattern is usually of dominant variety Environmental form is associated with vitamin D deficiency Sometimes maternal rubella infection contracted between 7th and 8th week of gestation may also cause lamellar cataract Characteristic[medifactsonline.blogspot.com]
  • They are organised into groups, and further divided into clinical, etiological or histopathological sub-types.[orpha.net]
  • […] lamellar cataract怎么翻译及发音 沪江词库精选lamellar cataract是什么意思、英语单词推荐 例句 cataracts are classified according to the age of the individual, etiology, and the morphologic characteristics of the opacity 白内障是根据患者的年龄、病因和晶状体混浊的形态学特征来分类的。[hujiang.com]
  • […] posterior pole Vision markedly diminished as the opacity is close to the nodal point 9 3.Lamellar cataract Etiology most common congenital cataract Definition: lens opacity involving one or more lamellae of the lens.[slideplayer.com]
  • Etiology Exact etiology is not known. Some factors which have been associated with certain types of cataracts are described below: I. Heredity. Genetically-determined cataract is due to an anomaly in the chromosomal pattern of the individual.[ikeyes.blogspot.com]

Epidemiology

  • From Epidemiology common type of infantile cataract Pathology concentric opacities , broad or narrow, usually consisting of powdery white dots affecting one lamella or zonule of an otherwise clear lens the opacity may be so dense as to render the entire[anvita.info]
  • THE EPIDEMIOLOGY OF CATARACT PEDIATRIC CATARACTS: EPIDEMIOLOGY AND DIAGNOSIS RETROSPECTIVE REVIEW OF 79 CASES This article describes various aspect of pediatric cataract in a hospital based study.[v2020eresource.org]
  • Epidemiology. 2003 Nov;14(6):707-12. Sun exposure as a risk factor for nuclear cataract p.37 quoting Javitt, J. C., F. Wang, and S. K. West. “Blindness Due to Cataract: Epidemiology and Prevention.” Annual Review of Public Health 17 (1996): 159-77.[psychology.wikia.com]
  • Epidemiology and molecular genetics of congenital cataracts. Int J Ophthalmol. 2011;4(4):422-32. 22. Papania MJ, Wallace GS, Rota PA, et al.[reviewofoptometry.com]
  • Epidemiology:• The incidence is about 1 in 2000, andapproximately one-third of congenital cataractsare familial, one-third are associated with asyndrome, and one-third are isolated.(Friedman, NJ & Kaiser, PK, 2009) 5.[slideshare.net]
Sex distribution
Age distribution

Pathophysiology

  • Pathophysiology The lens forms during the invagination of surface ectoderm overlying the optic vesicle. The embryonic nucleus develops by the sixth week of gestation. Surrounding the embryonic nucleus is the fetal nucleus.[emedicine.medscape.com]

Prevention

  • By means of concise text supported by a wealth of color illustrations the authors' aim is to enable the reader to reach a fast and accurate diagnosis, to ensure early treatment which may ultimately prevent the occurrence of further disease.[books.google.com]
  • Early detection is important to prevent lazy eye (amblyopia). Inherited forms of cataracts are usually bilateral as is the case in this disorder.[disorders.eyes.arizona.edu]
  • Early detection and treatment could prevent vision loss. See an eye care professional right away if you have a sudden change in vision, if everything looks dim, or if you see flashes of light.[icdlist.com]
  • Causes of Cataract Blindness and the challenges are to prevent or delay Cataract formation and cure that which does occur, Preventive interventions, changes in government policy and legislation, and modification of community and individual behavior.[v2020eresource.org]

Ask Question

5000 Characters left Format the text using: # Heading, **bold**, _italic_. HTML code is not allowed.
By publishing this question you agree to the TOS and Privacy policy.
• Use a precise title for your question.
• Ask a specific question and provide age, sex, symptoms, type and duration of treatment.
• Respect your own and other people's privacy, never post full names or contact information.
• Inappropriate questions will be deleted.
• In urgent cases contact a physician, visit a hospital or call an emergency service!