Results 31 to 40 of about 15,938,885 (242)
Higher Order Aberrations in Children with Down Syndrome
Investigative Opthalmology & Visual Science, 2013 Down syndrome (DS) is associated with ocular abnormalities and reduced visual function. Studies report atypical optical structures in the DS eye such as thinner, steeper corneae and thinner crystalline lenses and, functionally, a degrading influence of the optics on acuity. This study further investigates optical quality in DS by comparing higher order
Sara J, McCullough +2 more
openaire +2 more sources
Universa Medicina, 2023 Background Advancements in ophthalmic surgery now hinge on intricate interplays among ocular parameters. Angle kappa, measuring deviation between visual and pupillary axes, is crucial, especially in refractive procedures with multifocal intraocular ...
Siska Siska +2 more
doaj +1 more source
Impact of higher-order aberrations on depth-of-field
Journal of Vision, 2018 It is well known that depth-of-focus (DOF) is influenced by optical factors (such as pupil size and monochromatic aberrations). However, neural factors such as blur sensitivity and defocus adaptation may play an important role on the extent of DOF.
Zapata-Diaz, Juan +3 more
openaire +4 more sources
Evaluation of corneal higher order aberrations in normal topographic patterns
Journal of Current Ophthalmology, 2016 Purpose: This study reports the characteristics of corneal higher order aberrations (HOAs) in eyes with normal topographic pattern using the Pentacam scheimpflug system.
Ali Mirzajani +4 more
doaj +1 more source
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Ocular higher-order aberrations and visual performance [PDF]
, 2011 Since adaptive optics was first used to correct the monochromatic aberrations of the eye over a decade ago there has been considerable interest in correcting the ocular aberrations beyond defocus and astigmatism.
Young, Laura Kate, YOUNG, LAURA,KATE
core
The Effect of Artificial Tears on Corneal Higher Order Aberrations in Dry Eye Patients
, 2014 Purpose: To assess the effects of artificial tears on corneal higher order aberrations in dry eye patients. Materials and Methods: 30 right eyes of 30 newly diagnosed dry eye patients were evaluated in this prospective study.
Hasan Ali Bayhan +2 more
core +1 more source
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Analysis of Corneal Topography and Wavefront Aberrations after Upper Eyelid Blepharoplasty
Uludağ Üniversitesi Tıp Fakültesi DergisiIn this prospective, interventional study, the effect of upper eyelid blepharoplasty (UEB) surgery performed on dermatochalasis patients on the cornea was investigated by corneal topography, and its effect on visual function was investigated by examining
Derya Doğanay +2 more
doaj +1 more source
Progression of lower and higher-order aberrations: a longitudinal study [PDF]
BMC Ophthalmology, 2015 The aim of the present study was to investigate the effect of near-work on lower and higher-order aberrations, and its progression over a 9-month period during the school year.Data from 24 young-adult myopic eyes, and 24 non-myopic eyes were used in this investigation.
Vasudevan, Balamurali +4 more
openaire +2 more sources