Results 81 to 90 of about 4,816 (194)

Convergent‐beam X‐ray crystallography

Journal of Applied Crystallography, EarlyView.
Molecular crystal diffraction with a highly focused X‐ray beam decouples crystal morphology and molecular structure by measuring magnified topographs from every reflection.Molecular and polymeric crystals show a wide range of functional properties that arise from the interplay between the atomic‐scale structure of their constituent molecules and the ...
Chufeng Li, Margarita Zakharova, Mauro Prasciolu, Jia Chyi Wong, Holger Fleckenstein, Nikolay Ivanov, Wenhui Zhang, Mansi Butola, J. Lukas Dresselhaus, Ivan De Gennaro Aquino, Dmitry Egorov, Philipp Middendorf, Alessa Henkel, Bjarne Klopprogge, Lars Klemeyer, Tobias Beck, Oleksandr Yefanov, Miriam Barthelmess, Janina Sprenger, Dominik Oberthuer, Saša Bajt, Henry N. Chapman   +21 more
wiley   +1 more source

Keratometry device for surgical support

BioMedical Engineering OnLine, 2009
Background High astigmatisms are usually induced during corneal suturing subsequent to tissue transplantation or any other surgery which involves corneal suturing.
Saia Paula, De Groote Jean-Jacques, Ventura Liliane, Faria e Sousa Sidney J   +3 more
doaj   +1 more source

Correcting ocular spherical aberration with soft contact lenses. [PDF]

, 2004
NoFollowing aberroscopy, aspheric front surface soft contact lenses (SCLs) were custom-made to correct spherical refractive error and ocular spherical aberration (SA) of 18 myopic and five hypermetropic subjects (age, 20.5 . 5 yr).
Cox, Michael J., Dietze, Holger H.
core   +1 more source

The impacts of high refractive errors on self‐reported visual function and visual concern

Acta Ophthalmologica, EarlyView.
Abstract Purpose To examine the association between refractive errors and self‐reported visual function and visual concern, considering self‐perceived present eyesight, concerns about vision, accomplishing less and limitations in daily activities in an eye‐healthy cohort.
Jens Riis Møller, Arevak Saruhanian, Jens Rovelt, Josefine Freiberg, Marcel Reimann, Jeppe Nygård Samuelsen, Christina Eckmann‐Hansen, Miriam Kolko, Nina Jacobsen, FOREVER Consortium   +9 more
wiley   +1 more source

Patient‐reported outcomes and visual function after four refractive strategies in cataract surgery: A randomized controlled trial

Acta Ophthalmologica, EarlyView.
Abstract Purpose To evaluate patient‐reported outcome measures (PROMs) and visual function across four groups of public cataract patients: emmetropia, mini‐monovision, monovision with partial‐range of field (RoF) narrow intraocular lenses (IOLs) and patients implanted with partial‐RoF extended IOLs.
Anne Guldhammer Skov, Morten la Cour, Birgitte Moldow, Lars Holm, Therese Krarup   +4 more
wiley   +1 more source

Evaluation of posterior and total corneal astigmatism with colour-led topography [PDF]

, 2021
Trabalho Final do Curso de Mestrado Integrado em Medicina, Faculdade de Medicina, Universidade de Lisboa, 2021A cirurgia da catarata é um dos procedimentos cirúrgicos mais antigos e bem-sucedidos em toda a Medicina, tendo evoluído para um procedimento ...
Mendes, João Guilherme Ribeiro
core   +2 more sources

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

Approximately half of the magnitude of ocular residual astigmatism comes from posterior corneal astigmatism in myopic patients aged 18-40 years

, 2023
Abstract To determine the main sources of ocular residual astigmatism (ORA) and the contribution of posterior corneal astigmatism (PCA) to ORA. Anterior corneal astigmatism (ACA) and PCA was obtained from Pentacam. ORA was calculated by Thibos vector analysis.
Jian Lin, Dexiang An, Haiqian Wu, Yun Lu, Dongmei Yan   +4 more
openaire   +1 more source

Bivariate ordinary least square regression (OLS) analysis. [PDF]

, 2015
1 = Efficacy Index; 2 = empirical t value (coefficient/SE); 3 = significance; 4 = ocular residual astigmatism; 5 = Safety IndexBivariate ordinary least square regression (OLS) analysis.
Gisbert Richard (71493), Andreas Frings (703734), Vasyl Druchkiv (723867), Toam Katz (723868), Johannes Steinberg (723866), Stephan J. Linke (703733), Christos Skevas (673410)   +6 more
core   +1 more source

Childhood ocular safety after postnatal exposure to topical dexamethasone during retinopathy of prematurity screening

Acta Ophthalmologica, EarlyView.
Abstract Purpose Dexamethasone eye drops are being introduced off‐label to prevent progression of severe retinopathy of prematurity (ROP). We evaluated ophthalmologic outcomes in early childhood after postnatal topical dexamethasone exposure in pre‐term infants at a standardized follow‐up examination.
Mariya Petrishka‐Lozenska, Anders K. Nilsson, Ann Hellström, Pia Lundgren   +3 more
wiley   +1 more source