Results 111 to 120 of about 60,613 (227)

P‐T‐t‐d Evolution of Low‐Grade Metamorphic Xenotime, Eastern Alps (Austria)

open access: yesTerra Nova, EarlyView.
ABSTRACT In situ LA‐ICP‐MS U‐Pb dating of xenotime was used to establish the age of low‐grade metamorphism in Permian metasediments of the Austroalpine Unit (Eastern Alps, Austria). Complexly zoned xenotime in chloritoid‐bearing metasedimentary samples possesses distinct MREE‐rich domains. In the eastern sample, this domain yielded a date of c. 135 Ma,
M. S. Hollinetz   +4 more
wiley   +1 more source

Fifteen years follow-up of photorefractive keratectomy up to 10 D of myopia: outcomes and analysis of the refractive regression [PDF]

open access: yes, 2015
PURPOSE: To evaluate outcomes of photorefractive keratectomy up to -10.00 D of myopia and -4.50 of astigmatism and to develop a predictive model for the refractive changes in the long term.
ABBOUDA, ALESSANDRO   +3 more
core   +1 more source

A deep learning‐enabled toolkit for the 3D segmentation of ventricular cardiomyocytes

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend 3D cardiomyocyte segmentation enables comprehensive analyses of myocardial microstructure in health and disease; however, it is technically demanding. We present an open‐source toolkit for this task, which reduces challenges associated with sample preparation, image restoration, segmentation and proofreading.
Joachim Greiner   +6 more
wiley   +1 more source

Pattern of Refractive Error among Patients attending a Tertiary Care Hospital in Southern Assam, India: A Cross-sectional Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Introduction: Uncorrected Refractive Errors (URE) are a primary cause of vision impairment worldwide and a leading contributor to blindness. These errors impact daily productivity, limit job opportunities and can significantly diminish quality of life ...
Nilanjan Kaushik Thakur   +5 more
doaj   +1 more source

Time outdoors and the prevention of myopia [PDF]

open access: yes, 2015
Recent epidemiological evidence suggests that children who spend more time outdoors are less likely to be, or to become myopic, irrespective of how much near work they do, or whether their parents are myopic.
Ashby, Regan S.   +3 more
core   +1 more source

Evaluation of the Effect of Topical Vitamin A Eye Ointment on Pain Reduction and Accelerated Healing of Corneal Defect After Photorefractive Keratectomy: A Prospective Randomized Controlled Study

open access: yesHealth Science Reports, Volume 8, Issue 12, December 2025.
ABSTRACT Background and Aims Photorefractive keratectomy (PRK) is commonly used for refractive errors but is associated with postoperative pain and delayed epithelial healing. Vitamin A has been shown to support epithelial regeneration and corneal wound healing.
Maryam Hajizadeh   +2 more
wiley   +1 more source

Reversibility of the duet procedure: Bilateral exchange of a supplementary trifocal sulcus-fixated intraocular lens for correction of a postoperative refractive error

open access: yesAmerican Journal of Ophthalmology Case Reports, 2020
Purpose: We present the case of a 49-year old female who underwent bilateral exchange of a supplementary trifocal sulcus-fixated intraocular lens (IOL) to correct a residual refractive error.
Isabella Diana Baur   +4 more
doaj   +1 more source

Slowing myopia progression with cylindrical annular refractive elements (CARE) spectacle lenses—Year 1 results from a 2‐year prospective, multi‐centre trial

open access: yesActa Ophthalmologica, Volume 103, Issue 8, Page 929-938, December 2025.
Abstract Purpose To evaluate the effectiveness of 12 months of spectacle lens wear incorporating cylindrical annular refractive elements (CARE) in slowing myopia progression compared to single vision (SV) spectacle wear. Methods In an ongoing 2‐year prospective, double‐masked, multi‐centre clinical trial, 240 Chinese children aged 6–13 years, spherical
Xiaoqin Chen   +10 more
wiley   +1 more source

Delivering refractive error services: primary eye care centres and outreach

open access: yesCommunity Eye Health Journal, 2007
Addressing refractive errors, the second major cause of preventable blindness, is now a priority for eye care programmes.Although a simple pair of spectacles will correct refractive error, there exists a high prevalence of uncorrected refractive error ...
Kovin Naidoo, Dhivya Ravilla
doaj  

Effects of customized corneal cross‐linking on higher‐order aberrations in progressive keratoconus and low‐grade myopia

open access: yesActa Ophthalmologica, Volume 103, Issue 8, Page 966-973, December 2025.
Abstract Objective To evaluate the effects of customized corneal collagen cross‐linking (CXL) on higher‐order aberrations (HOAs) in keratoconus (KC): vertical coma (VC), horizontal coma (HC), spherical aberration (SA), trefoil (TF) and astigmatism, compared with the same effects in healthy eyes undergoing CXL for low‐grade myopia.
Jad Hayek   +4 more
wiley   +1 more source

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