Results 51 to 60 of about 61,783 (227)

Contributions of Anterior Corneal and Ocular Residual Astigmatism to Autorefraction Astigmatism in a Myopic Adult Sample

Clinical Ophthalmology, 2020
Amr A Gab-Alla Ophthalmology Department, Faculty of Medicine, Suez Canal University, Ismailia, EgyptCorrespondence: Amr A Gab-AllaOphthalmology Department, Faculty of Medicine, Suez Canal University, Ring Road, Ismailia, EgyptTel +20 1222836261Email ...
Gab-Alla AA
doaj  

Correlation Between Stereoacuity and Experimentally Induced Graded Monocular and Binocular Astigmatism [PDF]

Journal of Clinical and Diagnostic Research, 2016
Introduction: Stereopsis, the highest grade of binocular single vision, is affected by various factors, such as mis-alignment of visual axes, refractive errors especially anisometropia and astigmatism, both of which may result in amblyopia. There are
Varsha Kulkarni, Neelam Puthran, Bhavna Gagal   +2 more
doaj   +1 more source

Age- and gender-related characteristics of astigmatism in a myopic population

Frontiers in Medicine, 2022
PurposeTo explore age- and gender-related differences of refractive and corneal astigmatism in myopic patients looking for refractive surgery.DesignA retrospective cross-sectional study.Materials and methodsThe medical files of candidates looking for ...
Shan Yang, Yang Jiang, Ge Cui, Ying Li
doaj   +1 more source

Quasi-static aberrations induced by laser guide stars in adaptive optics [PDF]

, 2006
Laser Guide Star Adaptive Optics (LGS AO) systems use the return from an artificial guide star to measure the wavefront aberrations in the direction of the science object.
Bouchez, Antonin H., Le Mignant, David, van Dam, Marcos A., Wizinowich, Peter L.   +3 more
core   +1 more source

Case Report With Biallelic Variants in GCNT2 Implicates Exon 1B in Congenital Cataracts

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT GCNT2‐related cataracts is a disorder characterized by bilateral congenital cataracts (CC) of various types (with or without the adult i blood phenotype) and is caused by biallelic variants in GCNT2, which has 3 major isoforms, differentiated by alternative splicing of the first exon (known as exon 1A, B, and C).
Audrey O'Neill, Cindy Bayer, Emily McQuillen, Erica D. Smith, Meghan Towne, Dallas Reed   +5 more
wiley   +1 more source

Studying the contribution of posterior corneal astigmatism to total corneal astigmatism

Journal of the Egyptian Ophthalmological Society, 2015
Settings The Faculty of Medicine, Alexandria University, Egypt. Purpose The aim of this work was to study the contribution of posterior corneal astigmatism to total corneal astigmatism.
Hany Ahmed Helaly
doaj   +1 more source

Numerical correction of anti-symmetric aberrations in single HRTEM images of weakly scattering 2D-objects [PDF]

, 2014
Here, we present a numerical post-processing method for removing the effect of anti-symmetric residual aberrations in high-resolution transmission electron microscopy (HRTEM) images of weakly scattering 2D-objects.
Chen, Ming-Wei, Geiger, Dorin, Kaiser, Ute, Kis, Andras, Lee, Zhongbo, Lehtinen, Ossi, Whitwick, Michale B.   +6 more
core   +3 more sources

Phenotype Expansion of Malan Syndrome: New Cases and a Review of the Literature

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Malan syndrome is an ultra‐rare overgrowth syndrome caused by pathogenic variants or deletions in nuclear factor one X (NFIX) located at 19p13.2. Here, we report a comprehensive literature review and phenotyping of known patients with Malan syndrome and present a novel cohort of eight patients.
Alex F. Nisbet, Sylvie A. Adams, Zoe S. Katz, Christal G. Delagrammatikas, Kosuke Izumi, Winifred Sigal, Kim Ventarola, Elaine H. Zackai, Julia E. Reid, Grant T. Liu, Jennifer M. Kalish   +10 more
wiley   +1 more source

Clinical, Behavioral and Neuroradiological Phenotype in an Italian Cohort of Patients With Xia Gibbs Syndrome: A Multicenter Cross‐Sectional Study and Systematic Literature Review

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Heterozygous variants in the AHDC1 gene are associated with Xia Gibbs Syndrome (XGS), a genetic disorder with a highly variable phenotype. Cognitive impairment, motor delay, language delay, neonatal hypotonia, and sleep apnea are considered “cardinal” signs of the disease.
Giulia Cinelli, Stefania Della Vecchia, Patrizia Bergonzini, Elisa Caramaschi, Elisabetta Spezia, Claudia Parenti, Simona Filomena Madeo, Laura Lucaccioni, Cavalleri Francesca, Marisa Pugliese, Federico Raviglione, Clara Colonna, Olga Calabrese, Ilaria Stanghellini, Maria Carmen Marongiu, Enrico Biagioni, Anna Rita Ferrari, Roberta Battini, Lorenzo Iughetti   +18 more
wiley   +1 more source

Descriptive Epidemiology From the Myhre Syndrome Foundation Registry: The Value of Self‐Reported Data

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Myhre syndrome is an ultrarare genetic disease characterized by short stature, distinct craniofacial features, cardiovascular and respiratory fibrosis and stenosis, neurodevelopmental delays, autism, intellectual disability, and hearing loss. The natural history of Myhre syndrome is still not fully understood due to a small patient population ...
Mary K. Young, Armelle Pindon, Maggie R. Brand, Kate Wears, Katherine H. Young, Alyssa Mendel, Michael J. Lyons   +6 more
wiley   +1 more source