Results 81 to 90 of about 13,094 (205)
PhotonicsDetermining the axial length (AL) of the eye is of significant interest in the management of myopia. However, the devices that allow this value to be obtained are either expensive, for example, optical biometers, or inconvenient for use in pediatric ...
Veronica Noya-Padin +5 more
doaj +1 more source
Outcome analysis of intracorneal ring segments for the treatment of keratoconus based on visual, refractive, and aberrometric impairment [PDF]
, 2013 PURPOSE: To analyze the outcomes of intracorneal ring segment (ICRS) implantation for the treatment of keratoconus based on preoperative visual impairment. DESIGN: Multicenter, retrospective, nonrandomized study.
Alio, JL +9 more
core +1 more source
Considerations on the Haigis formula: Are better outcomes possible with tuning?
Acta Ophthalmologica, Volume 103, Issue 5, Page e298-e309, August 2025.Abstract Purpose To design a vergence‐based lens power formula based on the classical Haigis formula for better outcomes while retaining the original formula architecture. Methods Four new formula variants (A–D) incorporating a sum of segments correction for axial length, harmonic mean of corneal radii instead of arithmetic mean (all variants), and ...
Achim Langenbucher +5 more
wiley +1 more source
Longitudinal change of refraction over at least 5years in 15,000 patients [PDF]
, 2018 Background: To report the natural, longitudinal history of shifts in refractive errors in different age groups in a large western European cohort over at least 5years in the same patients.
Brugger, Annette +3 more
core
Cataract Surgery in the Small Adult Eye: A Review
Clinical &Experimental Ophthalmology, Volume 53, Issue 5, Page 558-569, July 2025.ABSTRACT Modern cataract surgery continues to advance, yet intraocular lens (IOL) based surgery in the small adult eye remains challenging. Thorough preoperative assessment and surgical preparation optimise postoperative outcomes in these cases. Advances in IOL power calculation, including artificial intelligence‐driven formulas, improve accuracy ...
Jonathan E. Moore +2 more
wiley +1 more source
Open Veterinary JournalBackground: Cataracts are a common ocular condition that affects captive sun bears, yet there is a lack of detailed case reports and ocular studies of this species.
Yong Zheng Wai +9 more
doaj +1 more source
A Comprehensive Evaluation of the Precision (Repeatability and Reproducibility) of the Oculus Pentacam HR [PDF]
, 2011 This article is made available with the permission of the publisher, Association for Research in Vision and OphthalmologyPurpose.: To evaluate the precision (repeatability and reproducibility) of the Pentacam HR (high-resolution) tomographer (Oculus ...
Khadka, Jyoti +2 more
core +1 more source
Outcome of Intrastromal Corneal Ring Segments Implantation in Keratoconus: 5 Years Follow up
Zanco Journal of Medical SciencesBackground and objective: Keratoconus (KC) is a progressive non inflammatory bilateral (usually asymmetric) ectatic corneal disease characterized by paraxial stromal thinning, with vision loss from irregular astigmatism and myopia.
Ahmed Kareem Joma
doaj +1 more source
Clinical Ophthalmology, 2021 Duangratn Niruthisard,1 Wasee Tulvatana,1 Vannarut Satitpitakul2 1Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand; 2Center of Excellence for ...
Niruthisard D +2 more
doaj
Improving precision for detecting change in the shape of the cornea in patients with keratoconus [PDF]
, 2018 To investigate a method for precision analysis to discriminate true corneal change from measurement imprecision in keratoconus (KC). Thirty patients with KC and 30 healthy controls were included. Coefficients of repeatability and limits of agreement (LOA)
A Rio-Cristobal +25 more
core +3 more sources