Results 111 to 120 of about 406,516 (266)
Ocular surface characteristics and its association with soft contact lens fitting
Ophthalmic and Physiological Optics, EarlyView.Abstract Purpose To analyse the associations between ocular surface shape parameters and soft contact lens fitting. Methods A total of 106 eyes of 53 participants (53 right and 53 left eyes) fitted with standard silicone hydrogel soft lenses were analysed retrospectively.
Javier Rojas Viñuela +4 more
wiley +1 more source
Ophthalmic and Physiological Optics, EarlyView.Abstract Purpose Angle lambda (λ) is defined as the angle between the line of sight and the pupillary axis at the entrance pupil. We previously developed a child‐friendly and portable method to measure this angle in daily practice. In a given population, angle λ fluctuates according to age or refractive error.
Maxence Rateaux +3 more
wiley +1 more source
The role of astigmatism in myopia development, myopia progression and myopia control
Ophthalmic and Physiological Optics, EarlyView.Abstract Aims/Purpose Myopia arises primarily due to excessive axial elongation and is associated with an increased risk of ocular complications and visual impairment, particularly in high myopia. Although astigmatism may have implications on refractive development, the role of astigmatism in myopic eye growth and the effectiveness of myopia control ...
Stephanie Kearney +2 more
wiley +1 more source
Indian Journal of Ophthalmology, 2017 A 29-year-old male was referred following a flap loss after the creation of a thin, irregular flap with a visual acuity of logMAR 0.1 with −2.0 DS−2.75 DC × 175°.
Rohit Shetty +4 more
doaj +1 more source
Impact of contact lens correction on wavefront aberrations and vision quality in keratoconus
Ophthalmic and Physiological Optics, EarlyView.Abstract Purpose To review the optical principles of contact lens correction in keratoconus, with a focus on residual ocular wavefront error and its impact on vision performance. Findings Corneal rigid gas permeable (RGP) contact lenses, commonly used in keratoconus management, often fail to improve vision quality to levels observed in non‐diseased ...
Gavin Swartz +3 more
wiley +1 more source
Corneal eccentricity and related factors in Chinese children and adolescents with astigmatism
BMC OphthalmologyObjective To quantify the distribution of anterior corneal eccentricity (e value) and identify associated factors in Chinese children and adolescents with astigmatism.
Lixing Zhou +7 more
doaj +1 more source
Topography-Guided Custom Ablation Treatment for Post-Traumatic Corneal Irregularities—Case Reports
BiomedicinesBackground: Post-traumatic corneal wounds that require suturing are quite common; they reduce corneal transparency and cause corneal distortion, leading to corneal astigmatism and higher-order aberrations.
Łukasz Drzyzga +3 more
doaj +1 more source
Comparison of Surgically-induced Astigmatism using Topography and Keratometry in Patients undergoing Phacoemulsification and Small Incision Cataract Surgery: A Prospective Interventional Study [PDF]
Journal of Clinical and Diagnostic ResearchIntroduction: Topographic measurement of corneal astigmatism is the current standard of care because, in addition to measuring corneal astigmatism, it identifies irregular astigmatism, which may limit optimum surgical results.
Indrajit Shinde +2 more
doaj +1 more source
, 2014 In this paper we discuss some exact results related to the fractional Klein--Gordon equation involving fractional powers of the D'Alembert operator. By means of a space-time transformation, we reduce the fractional Klein--Gordon equation to a fractional ...
Garra, Roberto +2 more
core +1 more source