You searched for "refraction"
Microdroplet and splatter contamination during phacoemulsification in COVID-19 era
3 June 2021
| Ivan Yip
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EYE - Cataract, EYE - Refractive
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COVID-19, SARS-CoV-2, aerosol-generating procedure, microdroplet generating procedure, phacoemulsification cataract surgery
Half a millilitre of fluorescein was incorporated into 400ml of balanced salt solution to identify microdroplet and splatter from phacoemulsification to simulate possible COVID-19 contamination. Five porcine eyes were mounted to an ophthalmic mannequin head and two surgeons (height 189cm,...
COMPlog – Electronic visual lane software
4 February 2021
| David Haider
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EYE - General
COMPlog is software designed to replace physical Snellen and LogMAR charts. We have been using COMPlog since 2017 in the unit where I work. Some readers may find our experience, and reasons for choosing this product, interesting. This article is...
Optical Coherence Tomography: A Clinical and Technical Update
This book is a comprehensive review of the clinical and scientific aspects of optical coherence tomography (OCT). The 255 pages are divided into 11 chapters, each written by a different group of authors. Part I provides viewpoints on the clinical...Allergic eyelid dermatitis
This is a retrospective 12 year review of 61 patients diagnosed with periocular allergic dermatitis. The average age was 66 years, with 74% being female. The commonest indications for referral were epiphora, ectropion and blepharitis; and the main symptoms were...The results of the last survey Apr23
3 April 2023
| Amar Alwitry
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EYE - General
*Please be aware that this data does not form part of a peer reviewed research study. The information therein should not be relied upon for clinical purposes but instead used as a guide for clinical practice and reflection. My thanks...
Comparison of paediatric migraine and healthy controls using optical coherence tomography angiography
1 August 2024
| Lauren R Hepworth
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EYE - Neuro-ophthalmology
The authors present a cross-sectional study which recruited patients with paediatric migraine without aura along with age and sex-matched healthy controls. Both groups were recruited following attendance to an ophthalmology outpatient clinic. Children diagnosed with any of the following were...
How to examine the visual system Part 1: visual acuity, visual fields and eye movements
1 June 2014
| Emma Linton, Apostolos Fotakakis
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EYE - Vitreo-Retinal
Asking candidates to perform an examination of the visual system, either as part of a full cranial nerve exam or as an individual entity, is a common station in practical examinations during medical school. It is important to practise for...
Corneal crosslinking in pellucid marginal degeneration
Fourteen studies were included in this first review examining the use of corneal-crosslinking (CXL) to treat pellucid marginal degeneration (PMD). PMD is a bilateral, non-inflammatory corneal thinning disorder characterised by inferior peripheral corneal thinning 1-3mm from the limbus in the...Comparison of vertical rectus muscle transpositions
The purpose of this study was to evaluate both the amount of correction obtained and the postoperative drift that occurred with two frequently used vertical rectus muscle transposition (VRT) procedures to determine the ideal immediate postoperative alignment. Twenty-seven patients underwent...Effect of selenium and vitamin E supplements on the development and progression of cataracts
The Selenium and Vitamin E Cancer Prevention Trial (SELECT) investigated the influence of dietary supplements on the development of prostate cancer in a group of 35,533 middle aged and older, apparently healthy men. The SELECT Eye Endpoint (SEE) study is...Orbis eye health programme integrated into school curriculum in Nepal
Leading eyecare charity Orbis and Nepal’s National Society of Comprehensive Eye Care (NNJS) have worked together since 2019 to implement a programme called REACH (Refractive Error Among Children) in Eastern Nepal.Retinal structural features of CMV retinitis
1 October 2016
| Anjali Gupta
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EYE - Vitreo-Retinal
Confocal adaptive optics (AO) technology has enabled cellular level retinal imaging, including imaging of photoreceptors and blood flow. Adaptive optics scanning laser ophthalmoscopy (AOSLO) is a technology that provides high resolution and high contrast retinal images by correcting ocular aberrations....