43 research outputs found

    IMI-Management and Investigation of High Myopia in Infants and Young Children

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    The purpose of this study was to evaluate the epidemiology, etiology, clinical assessment, investigation, management, and visual consequences of high myopia (≤−6 diopters [D]) in infants and young children

    Advancing therapies for anterior segment developmental anomalies

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    Horner Syndrome in a Patient with Marfan Syndrome and Carotid Artery Tortiuousity (.pdf)

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    Marfan syndrome (MFS) is an autosomal dominant disorder of the connective tissue characterized by early development of thoracic aortic aneurysms and/or dissections. The presence of MYH-11 mutation has been associated with Familial thoracic aortic aneurysm and dissection (TAAD) .Horner syndrome in a patient with MFS indicates carotid dissection until proven otherwise

    High-frequency ultrasonography findings in persistent hyperplastic primary vitreous

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    Purpose: To identify anatomic correlates in eyes with persistent hyperplastic primary vitreous (PHPV) by using high-frequency ultrasonography. Method: Three main groups of patients were studied by means of high-frequency ultrasonography over a 19-month period. Group I included 9 eyes of 9 patients with newly diagnosed unilateral PHPV. Group II included 4 eyes of 4 patients with unilateral PHPV that had been previously surgically treated. Group III included 22 eyes and was a control group of patients without PHPV. This group consisted of the 5 contralateral normal eyes of 5 patients with unilateral PHPV in the fellow eye, both eyes of one patient with uncomplicated unilateral cataracts, the affected eye of one patient with unilateral uncomplicated cataract, the affected eye of one patient with isolated retinal coloboma, and 13 normal eyes of 7 young adults. Group I and II patients also had B-scan ultrasonography performed and had any intraoperative findings noted. Results: Characteristic features of PHPV, such as centrally dragged ciliary processes and swollen anteriorly displaced lens, were observed only in those eyes with PHPV. A new echographic finding of a double linear echo was observed in the region of the pars plana or plicata only in eyes with PHPV. This finding was confirmed intraoperatively to be consistent with a thickened adherent anterior hyaloid face and not to be an anteriorly inserted peripheral retina. Conclusion: High-frequency ultrasound can be reliably used to distinguish characteristic features of PHPV. To our knowledge this is the first such description of the use of high-frequency ultrasonography in PHPV eyes. Furthermore, the presence of a thickened adherent anterior hyaloid face may help explain the well-recognized complications of peripheral retinal tears and retinal detachments during and after surgical intervention.Link_to_subscribed_fulltex

    Clinical ophthalmology : a systematic approach / seventh edition

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    ix, 909 pages : illustrations ; 28 c

    Case series: Pyramidal cataracts, intact irides and nystagmus from three novel PAX6 mutations

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    Purpose: To investigate the association between novel PAX6 mutations to bilateral anterior pyramidal congenital cataracts (APyC), complete and intact irides, and nystagmus. Observations: This is a retrospective observational case series in a multi-center setting with genetic testing. Three female patients were diagnosed with bilateral APyC, intact irides and nystagmus. Genetic testing identified the three patients had novel missense mutations in PAX6 – c.128C > T; p.Ser43Phe (S43F), c. 197T > A; p.Ile66Asn (I66N) and c.781C > G; p.Arg261Gly (R261G). Conclusions and importance: This study demonstrates a novel phenotype of bilateral APyC, intact irides, and nystagmus in whom genetic testing for PAX6 identified novel missense mutations (S43F, I66N, R261G) in highly conserved DNA-binding domains. Implications of understanding why the iris is present in these cases is discussed. Keywords: Pyramidal cataracts, Intact irides, Nystagmus, Novel PAX6 missense mutation
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