Results 31 to 40 of about 2,915 (196)

Toric Intraocular Lens Implantation in the Correction of Moderate‐To‐High Corneal Astigmatism in Cataract Patients: Clinical Efficacy and Safety

open access: yesJournal of Ophthalmology, Volume 2021, Issue 1, 2021., 2021
Background/Aims. To investigate the long‐term efficacy and rotational stability of toric intraocular lenses (IOLs) implanted for the correction of moderate‐to‐high corneal astigmatism. Methods. A total of 57 cataract patients (57 eyes) with regular corneal astigmatism (≥2.57 D) were enrolled in this retrospective cohort study.
Xiaodi Qiu   +6 more
wiley   +1 more source

Cycloplegic Effects on the Cylindrical Components of the Refraction

open access: yesJournal of Ophthalmology, Volume 2021, Issue 1, 2021., 2021
It is important to predict which astigmatic patients require separate refraction for near vision. This study compared cylindrical components changes by cyclopentolate 1% for the low and high amount of astigmatism. The right eyes of 1014 healthy individuals (307 males and 707 females) with cylindrical refractive power more than −0.5 diopter on ...
Athar Zareei   +3 more
wiley   +1 more source

[Retracted] Ultrasound Biomicroscopy Diagnosis Analysis and Fine Care of Anterior Segment Injury of Traumatic Anterior Chamber Based on Intelligent Virtual Reality Technology

open access: yesJournal of Healthcare Engineering, Volume 2021, Issue 1, 2021., 2021
The front part of the eye is exposed to the surface of the body, making it susceptible to injury. Blunt eye injuries often destroy the tissue structure in the anterior part of the eye. Often there is detachment of the iris root, separation of the ciliary body, the angle of retraction of the chamber, and complete dislocation or subluxation of the lens ...
Xiaoli Li, Zhihan Lv
wiley   +1 more source

Corneal wavefront-guided photorefractive keratectomy with mitomycin-C for consecutive hyperopia after radial keratotomy [PDF]

open access: yes, 2010
OBJETIVO: Avaliar a eficácia, previsibilidade e estabilidade da ceratectomia fotorrefrativa (PRK) guiada pela frente de onda corneana para o tratamento da hipermetropia secundária à ceratotomia radial.
GHANEM, Emir Amin   +2 more
core   +2 more sources

Long Term Follow-up of the Corneal State after Anterior Radial Keratotomy

open access: yesOftalʹmologiâ, 2018
Purpose: to investigate the cornea condition in the patients after anterior radial keratotomy in long-term (over 20 years) period.Patients and methods. The study involved 80 patients (147 eyes) aged from 41 to 65 years, who had keratotomy in average 23.9
N. V. Pasikova
doaj   +1 more source

Spontaneous corneal melting in pregnancy: a case report [PDF]

open access: yes, 2007
Background To report a case of spontaneous corneal melting in pregnancy. We reviewed the literature on corneal melting and the effect of pregnancy on cornea and collagen containing tissues.
Sudesh K Arya   +17 more
core   +2 more sources

Changes in Higher-Order Aberrations after Scleral Buckling Surgery for Rhegmatogenous Retinal Detachment [PDF]

open access: yes, 2008
Scleral buckling surgery significantly increased HOAs. The segmental buckling procedure increased the HOAs to a greater extent and for a longer duration than the encircling procedure.
Hiraoka T.   +7 more
core   +1 more source

Changes in forward light scatter parameters as a function of refractive error in young adults [PDF]

open access: yes, 2020
Background/aims Some aspects of visual performance worsen with increasing myopia. Whilst the underlying causes are not always clear, reduction in retinal image quality is often attributed to structural changes in the posterior myopic eye.
Barbur, J., Nagra, M., Patel, M.
core   +2 more sources

Customized finite element modelling of the human cornea [PDF]

open access: yes, 2015
Aim To construct patient-specific solid models of human cornea from ocular topographer data, to increase the accuracy of the biomechanical and optical estimate of the changes in refractive power and stress caused by photorefractive keratectomy (PRK ...
Pandolfi, A., Simonini, I.
core   +14 more sources

Long-term Quantitative and Qualitative Assessment of the Corneal Endothelium after Anterior Radial Keratotomy

open access: yesOftalʹmologiâ, 2016
Purpose. To determine the long-term status of the corneal endothelium after anterior radial keratotomy. Patients and methods. The main group consisted of 69 patients (104 eyes) who underwent radial or radial-tangential keratotomy to correct myopia and ...
M. M. Bikbov   +3 more
doaj   +1 more source

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