Results 51 to 60 of about 135,941 (356)

A discrete-to-continuum model for the human cornea with application to keratoconus [PDF]

open access: yesarXiv, 2023
We introduce a discrete mathematical model for the mechanical behaviour of a planar slice of human corneal tissue, in equilibrium under the action of physiological intraocular pressure (IOP). The model considers a regular (two-dimensional) network of structural elements mimicking a discrete number of parallel collagen lamellae connected by proteoglycan-
arxiv  

A review of the role of ultrasound biomicroscopy in glaucoma associated with rare diseases of the anterior segment [PDF]

open access: yes, 2016
Ultrasound biomicroscopy is a non-invasive imaging technique, which allows high-resolution evaluation of the anatomical features of the anterior segment of the eye regardless of optical media transparency.
Abdolrahimzadeh, B   +5 more
core   +2 more sources

PAF‐induced inflammatory and immuno‐allergic ophthalmic diseases and their mitigation with PAF receptor antagonists: Cell and nuclear effects

open access: yesBioFactors, Volume 48, Issue 6, Page 1226-1249, November/December 2022., 2022
Abstract Ocular allergies are becoming more prevalent as more airborne pollutants, irritants and microbes pervade our environment. Inflammatory and allergic mediators released by dendritic and mast cells within the conjunctiva cause allergic conjunctivitis (AC), a prevalent ocular surface disorder that affects >40% of the world's human population on a ...
Najam A. Sharif
wiley   +1 more source

Keratoconus Classifier for Smartphone-based Corneal Topographer [PDF]

open access: yesarXiv, 2022
Keratoconus is a severe eye disease that leads to deformation of the cornea. It impacts people aged 10-25 years and is the leading cause of blindness in that demography. Corneal topography is the gold standard for keratoconus diagnosis. It is a non-invasive process performed using expensive and bulky medical devices called corneal topographers.
arxiv  

Associations with photoreceptor thickness measures in the UK Biobank. [PDF]

open access: yes, 2019
Spectral-domain OCT (SD-OCT) provides high resolution images enabling identification of individual retinal layers. We included 32,923 participants aged 40-69 years old from UK Biobank.
Aslam, Tariq   +77 more
core   +10 more sources

Non-contact acoustic micro-tapping optical coherence elastography for quantification of corneal anisotropic elasticity: in vivo rabbit study [PDF]

open access: yesarXiv, 2023
Purpose. To demonstrate accurate measurement of corneal elastic moduli in vivo with non-contact and non-invasive optical coherence elastography. Methods. Elastic properties (in-plane Young's modulus E and both in-plane, u, and out-of-plane, G, shear moduli) of rabbit cornea were quantified in vivo using non-contact dynamic Acoustic micro-Tapping ...
arxiv  

A comparison of two conjunctival rotation autograft techniques in primary pterygium surgery. [PDF]

open access: yes, 2017
PURPOSE: To compare the effects of 90° and 180° conjunctival rotational autograft (CRA) techniques used in primary pterygium surgery. METHODS: Forty-five patients were included in this retrospective study. Visual acuity (VA), corneal topography, and auto-
Aksoy, Umit   +7 more
core   +3 more sources

An update and review of narrowband ultraviolet B phototherapy for vitiligo

open access: yesDermatological Reviews, Volume 3, Issue 5, Page 326-335, October 2022., 2022
Abstract Vitiligo is a chronic skin condition that results in depigmentation. It affects up to 2% of the population worldwide. Phototherapy is one of the most commonly used treatment methods for vitiligo. In the last few decades, there has been an increasing popularity of narrowband ultraviolet B phototherapy (NB‐UVB) over other forms of phototherapy ...
Eugene Wang, Michelle Rodrigues
wiley   +1 more source

Ablation Depth-Dependent Survival Analysis of Phototherapeutic Keratectomy for Recurrent Corneal Erosion Syndrome

open access: yesOphthalmology and Therapy
Introduction Phototherapeutic keratectomy (PTK) is a treatment for recurrent corneal erosion syndrome (RCES). The aim of this study was to investigate whether deeper ablations yielded greater success rates.
Kunal A. Gadhvi   +6 more
doaj   +1 more source

Use of topical tacrolimus in ophthalmology: Nonsystematic review

open access: yesThe Pan-American Journal of Ophthalmology, 2020
The two immunosuppressants most used topically in ophthalmology are cyclosporine (CS) and tacrolimus (TL). Their mechanism of action is similar, but the TL is ten to a hundred times more powerful than the CS.
Morgana Arima Vedovato   +6 more
doaj   +1 more source

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