Results 91 to 100 of about 38,555 (245)

Prevalence and profile of astigmatism in individuals availing ophthalmic services at Central Regional Referral Hospital, Gelephu, Bhutan: A cross-sectional, hospital-based study

Bhutan Health Journal
Introduction: Astigmatism has been defined as a type of refractive error when parallel rays of light entering the eye are not focused at one point of the retina when accommodation is at rest due to irregular curvature of the cornea or lens surface.
Sangay Choden, Tshering Jamtsho, Indra P Sharma   +2 more
doaj   +1 more source

Meridional lenticular astigmatism associated with bilateral concurrent uveal metastases in renal cell carcinoma

, 2012
Joshua C Priluck, Sandeep Grover, KV ChalamDepartment of Ophthalmology, University of Florida College of Medicine, Jacksonville, FL, USAPurpose: To demonstrate a case illustrating meridional lenticular astigmatism as a result of renal cell carcinoma ...
Grover S, Priluck JC, Chalam KV
core  

Binocular summation of astigmatism with reference to monovision

, 1991
Binocular summation is the basic mechanism underlying the use of monovision correction. In this experiment we have investigated the effect of uncorrected astigmatism (1.00DC) on binocular visual acuity with and without monovision.
Chamberlain, Stephanie, Brown, Brian, Collins, Michael J.   +2 more
core   +1 more source

Corneal transplantation: Restoring sight to the blind

Acta Ophthalmologica, EarlyView.
Abstract Corneal blindness is one of the leading causes of vision loss worldwide. Transplantation of the cornea can restore vision and make blind patients see again. Corneal transplant surgery has undergone major evolution in recent decades with the advent of minimally invasive lamellar surgical approaches such as DMEK and DALK.
Claus Cursiefen
wiley   +1 more source

Femtosecond Laser Created Corneal Allogenic Intrastromal Ring Segments for Keratoconus

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background To evaluate the clinical outcomes of femtosecond laser‐created corneal allogenic intrastromal ring segments (femto‐CAIRS) in keratoconic eyes using a newly described nomogram. Methods This retrospective case series recruited 85 eyes from 75 patients.
David J. Gunn, Rebecca A. Cox, Brendan Cronin   +2 more
wiley   +1 more source

Assessment of corneal astigmatism following frown and straight incision forms in sutureless manual small incision cataract surgery

, 2016
Angela Ofeibea Amedo, Kwadwo Amoah, Nana Yaa Koomson, David Ben Kumah, Eugene Appenteng Osae Department of Optometry and Visual Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana Abstract: To investigate which of two tunnel ...
Amoah K, Osae EA, Amedo AO, Kumah DB, Koomson NY   +4 more
core  

Duration‐Dependent Efficacy and Clinical Safety of Repeated Low‐Level Red‐Light Therapy for Paediatric Myopia: A Systematic Review and Meta‐Analysis

Clinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Background Repeated low‐level red‐light (RLRL) therapy is a novel, non‐invasive intervention for controlling paediatric myopia progression. Despite increasing clinical use, questions remain regarding the magnitude, durability, and safety of treatment effects.
Lee‐Yuan Lin, Cheng‐Hao Hsu, Hung Su, Jia‐Wei Sun, Jie‐Syuan Wu, Wei‐Jung Jeng, Chen‐Hsin Tsai, Fara Silvia Yuliani, Shyh‐Hsiang Lin   +8 more
wiley   +1 more source

Intrastromal corneal ring segment implantation for high astigmatism after penetrating keratoplasty

, 2009
Purpose: To evaluate the safety and efficacy of intracorneal ring segments (ICRS) for high astigmatism after penetrating keratoplasty (PKP). Setting: Department of Ocular Surface and Inflammation, Ophthalmology, Hospital Clínico San Carlos, Complutense ...
Cuiña Sardiña, Ricardo, Benítez Del Castillo Sánchez, José Manuel, Güell, José Luis, Arriola Villalobos, Pedro, Díaz Valle, David, Iradier Urrutia, María Teresa, Jiménez Alfaro, Iñigo   +6 more
core   +1 more source

Comprehensive Assessment of the KDM2B‐Associated Neurodevelopmental Disorder and the 12q24.31 Microdeletion Syndrome

Clinical Genetics, EarlyView.
We set out to characterize genotype–phenotype correlations in the recently delineated KDM2B‐associated neurodevelopmental disorder. We observe a highly penetrant CxxC domain‐related phenotype with distinct facial features supported by GestaltMatcher. In contrast, our findings point to variable expressivity and incomplete penetrance of loss‐of‐function ...
Amber S. E. van Oirsouw, Tzung‐Chien Hsieh, Martijn Koetsier, Abdulrazak Alali, Fatimah Albuainain, Elena Bacchelli, Tahsin Stefan Barakat, Yline Capri, Sandra Chantot‐Bastaraud, Valeria Capra, Deanna Alexis Carere, Emma Clement, Nour Elkhateeb, Madeleine Franchi, Jing‐Mei Li, Nicole Matthews, Vanda McNiven, Sarju G. Mehta, Masayuki Nakamura, Chanika Phornphutkul, Nicole Revencu, Marcello Scala, Natalie Shallow, Jennifer Stefanich, Marta Viggiano, Paola Visconti, Susan Walker, Federico Zara, Mariëlle Alders, Bobby P. C. Koeleman, Renske Oegema   +30 more
wiley   +1 more source

Comparison of astigmatism prediction error taken with the Pentacam measurements, Baylor nomogram, and Barrett formula for toric intraocular lens implantation

BMC Ophthalmology, 2017
Background To evaluate and compare the astigmatism prediction errors taken with the Pentacam measurements, Baylor nomogram, and Barrett formula for toric intraocular lens (IOL) implantation.
Dae-Young Park, Dong Hui Lim, Sungsoon Hwang, Joo Hyun, Tae-Young Chung   +4 more
doaj   +1 more source