keyword
MENU ▼
Read by QxMD icon Read
search

Eye biometry

keyword
https://www.readbyqxmd.com/read/29335099/femtosecond-laser-assisted-cataract-surgeries-reported-to-the-european-registry-of-quality-outcomes-for-cataract-and-refractive-surgery-baseline-characteristics-surgical-procedure-and-outcomes
#1
Mats Lundström, Mor Dickman, Ype Henry, Sonia Manning, Paul Rosen, Marie-José Tassignon, David Young, Ulf Stenevi
PURPOSE: To describe a large cohort of femtosecond laser-assisted cataract surgeries in terms of baseline characteristics and the related outcomes. SETTING: Eighteen cataract surgery clinics in 9 European countries and Australia. DESIGN: Prospective multicenter case series. METHODS: Data on consecutive eyes having femtosecond laser-assisted cataract surgery in the participating clinics were entered in the European Registry of Quality Outcomes for Cataract and Refractive Surgery (EUREQUO)...
December 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29326824/secondary-multifocal-intraocular-lens-implantation-a-novel-management-strategy-for-white-cataracts
#2
Jiawen Ling, Yiyong Qian, Peirong Lu
Objectives: This study was designed to analyse the outcomes of secondary multifocal intraocular lens implantation in eyes with white cataracts. Methods: White cataract patients undergoing secondary multifocal intraocular lens implantation between June 2014 and January 2015 were evaluated prospectively. As opposed to a conventional primary intraocular lens implantation for an optimal patient, the white cataract was first extracted, followed by optical biometry measurements...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29297794/the-eye-of-the-azara-s-agouti-dasyprocta-azarae-morphological-observations-and-selected-ophthalmic-diagnostic-tests
#3
André Tavares-Somma, Nathália Seabra, Bret A Moore, Mario Sato, Rogério R Lange, Fabiano Montiani-Ferreira
The purpose of this study was to carry out a descriptive investigation of the Azara's agouti ( Dasyprocta azarae) eye and to establish reference values of select ophthalmic diagnostic tests and physiologic parameters. A total of 19 healthy agoutis were used. Select ophthalmic diagnostic tests were performed, including Schirmer tear test type I (STTI), analysis of the conjunctival bacterial microflora, corneal esthesiometry, and tonometry. B-mode ultrasonic biometry, fundus photography, optical coherence tomography, and gross and histologic analysis of two eyes were also performed...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29285779/analysing-the-ocular-biometry-of-new-born-infants
#4
Jos J Rozema, Zvi Herscovici, Moshe Snir, Ruth Axer-Siegel
PURPOSE: To model and analyse the ocular biometry of new-born infants. METHODS: This work is based on previously published data of a cohort of 66 new-born infants aged 0-3 days. After exclusion of seven myopic subjects, the available retinoscopy, keratometry and ultrasound biometry data were analysed, along with calculated parameters such as lens power and whole eye power. RESULTS: Male infants have significantly flatter corneas that female infants (Mann-Whitney U test, p < 0...
December 29, 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/29285706/comparison-of-anterior-segment-parameters-and-axial-lengths-of-myopic-emmetropic-and-hyperopic-children
#5
Mehmethan Dogan, Ufuk Elgin, Emine Sen, Kemal Tekin, Pelin Yilmazbas
PURPOSE: To compare the anterior segment parameters of myopic, hyperopic, and emmetropic children by using optical biometry. METHODS: This prospective cross-sectional study included 150 eyes of 150 children between 6 and 16 years old. The eyes were divided into three groups according to their spherical equivalent (SE) refractive error values as myopic [between - 1.0 and - 6.0 diopter (D)], emmetropic (between + 0.50 and - 0.50 D), and hyperopic (between + 1...
December 29, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29260498/ocular-biometric-changes-with-different-accommodative-stimuli-using-swept-source-optical-coherence-tomography
#6
Teresa Ferrer-Blasco, José J Esteve-Taboada, Daniel Monsálvez-Romín, Miguel A Aloy, José E Adsuara, Pablo Cerdá-Durán, Robert Montés-Micó
PURPOSE: To evaluate ocular biometric changes with different accommodative stimuli using a new swept-source optical biometer. METHODS: Only the right eye was analyzed. Each subject was measured six times with the IOLMaster 700 swept-source optical biometer (Carl Zeiss Meditec, Jena, Germany) with the subject looking at the stimulus shown by the instrument and with the subject looking at a target placed outside the instrument at 0D of vergence. Axial length (AL), anterior chamber depth (ACD), central corneal thickness (CCT), lens thickness (LT), white-to-white (WTW), and keratometry readings (K1 and K2) were evaluated in both cases...
December 19, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29228915/qualitative-and-quantitative-evaluation-of-acute-angle-closure-mechanisms
#7
Yanin Suwan, Sunpong Jiamsawad, Apichat Tantraworasin, Lawrence Geyman, Wasu Supakontanasan, Chaiwat Teekhasaenee
BACKGROUND: To evaluate ocular biometric parameters in different subtypes of acute angle closure and compared to fellow eyes of AAC and PACS eyes. METHODS: This is a retrospective chart review study. A total of 167 eyes (96 patients) consisting of 71 AAC eyes, 71 fellow eyes of AAC, and 25 PACS eyes were recruited. All patients underwent ocular examination and biometry. The mechanism of AAC was confirmed by ultrasound biomicroscopy. We then subdivided AAC eyes into four subgroups: crowded-angle (CR), lens subluxation (LS) pupillary block (PB), and plateau iris syndrome (PL)...
December 11, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29208834/sutureless-glueless-intrascleral-fixation-of-posterior-chamber-intraocular-lens-boon-for-aphakic
#8
Nagendra Shekhawat, Karishma Goyal
PURPOSE: To report results of intrascleral fixation of 3-piece IOL without the help of suture and glue. METHODS: Study included intrascleral fixation of haptic in 50 eyes by T-fixation technique. Preoperative and postoperative visual acuity, slit lamp and fundus examination, applanation tonometry, keratometry, biometry, optical coherence tomography, Scheimpflug imaging were done for extensive evaluation. Qualitative and quantitative data were summarized in the form of proportion and mean and standard deviation, respectively...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29207985/long-term-follow-up-after-scleral-lens-fixation-in-patients-with-marfan-syndrome
#9
Jan Luebke, Thomas Reinhard, Hansjuergen Agostini, Daniel Boehringer, Philipp Eberwein
BACKGROUND: The dislocation of the crystalline lens is a common finding in patients with Marfan syndrome (MFS). Scleral intraocular lens (IOL) fixation is an accepted treatment method of this complication. To now, no long-term data on scleral IOL fixation in MFS exist. METHODS: We present a retrospective study of 27 eyes of 17 MFS patients that underwent scleral lens fixation at our clinic between 1999 and 2012. These patients are compared to an age- and surgeon-matched group of 31 eyes of 27 patients who underwent the same procedure for reasons other than MFS...
December 6, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29163989/axial-length-and-ocular-development-of-premature-infants-without-rop
#10
Yi Zha, Guangdong Zhu, Jinfei Zhuang, Haihua Zheng, Jianqiu Cai, Wangqiang Feng
Purpose: To investigate the ocular parameters of premature infants without ROP at gestational age (GA) more than 28 weeks and their relationship with growth parameters. Methods: 76 preterm infants without ROP and 65 term infants were involved to undergo portable slit lamp, RetCam3, ultrasonic A-scan biometry, and cycloplegic streak examination at their 40 weeks' postconceptional ages (PCA). Ocular parameters of infants' right eye and growth parameters were used for analysis...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/29151682/anterior-segment-morphology-in-primary-angle-closure-glaucoma-using-ultrasound-biomicroscopy
#11
Tarannum Mansoori, Nagalla Balakrishna
Aim: To evaluate the configuration of the anterior chamber angle quantitatively and study the morphological changes in the eye with ultrasound biomicroscopy (UBM) in primary angle closure glaucoma (PACG) patients after laser peripheral iridotomy (LPI). Materials and methods: A total of 185 eyes of 185 PACG patients post-LPI and 126 eyes of 126 normal subjects were included in this prospective study. All subjects underwent complete ophthalmic evaluation, A-scan biometry, and UBM...
September 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/29131913/unilateral-congenital-cataract-clinical-profile-and-presentation
#12
Sudarshan Khokhar, Cijin P Jose, Ramanjit Sihota, Neha Midha
PURPOSE: To study the clinical profile and presentation of children with unilateral cataract. METHODS: In this hospital-based, observational, cross-sectional study, patients 15 years of age or younger who presented with unilateral cataract were recruited. Cases of cataract secondary to causes such as trauma or uveitis were excluded. Age at detection and presentation, distance from the treatment center, presenting complaints, cataract morphology, and biometry were noted for each case...
November 11, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/29131702/postoperative-refractive-errors-following-pediatric-cataract-extraction-with-intraocular-lens-implantation
#13
Maanasa Indaram, Deborah K VanderVeen
PURPOSE: Advances in surgical techniques allow implantation of intraocular lenses (IOL) with cataract extraction, even in young children. However, there are several challenges unique to the pediatric population that result in greater degrees of postoperative refractive error compared to adults. METHODS: Literature review of the techniques and outcomes of pediatric cataract surgery with IOL implantation. RESULTS: Pediatric cataract surgery is associated with several sources of postoperative refractive error...
November 13, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/29108394/comparative-study-of-3-exophthalmometers-and-computed-tomographic-biometry
#14
Juliette Delmas, Jean-Marie Loustau, Sylvain Martin, Loïc Bourmault, Jean-Paul Adenis, Pierre-Yves Robert
PURPOSE: Accurate and reproducible exophthalmometry is mandatory to diagnose and follow-up orbital patients, especially in Graves disease. However, many variations are described among the different commercially available exophthalmometers. METHODS: Sixty patients, who underwent a cerebral computed tomography (CT) scan, were included. External prebicanthal segments (EPBCS) for right and left eyes (RE and LE), interorbital distance, and globe axial length were recorded by a first observer (O1), more experienced than a second (O2)...
November 2, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29090047/accuracy-of-various-intraocular-lens-power-calculation-formulas-in-steep-corneas
#15
Amir Faramarzi, Ali Aghajani, Leila Ghiasian
PURPOSE: To compare the accuracy of four different intraocular lens (IOL) power calculation formulas for eyes with mean keratometry values greater than 46 diopters (D). METHODS: Forty five eyes from 45 patients who were candidates for senile cataract surgery with mean keratometry values greater than 46 D were included. Calculation of the IOL power was performed by the Lenstar. The implanted IOL in all cases was Acrysof SA60AT. The average absolute value of the differences between the actual and predicted spherical equivalent (SE) of the postoperative refractive error (mean absolute error: MAE) was calculated using 4 formulas (Haigis, Holladay 1, Hoffer Q, and SRK/T) with optical IOL constants from the User Group for Laser Interference Biometry constants...
October 2017: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/29067532/biometric-evaluation-of-myopic-eyes-without-posterior-staphyloma-disproportionate-ocular-growth
#16
Sudarshan Khokhar, Brijesh Takkar, Esha Agarwal, Nripen Gaur, Raghav Ravani, Pradeep Venkatesh
PURPOSE: To evaluate changes in the anterior segment of myopic eyes and assess anterior biometry as a function of axial length (AL). DESIGN: Retrospective investigational study. PARTICIPANTS: Patients evaluated for phakic intraocular lens surgery at a tertiary eye care centre. METHODS: Patients with corrected visual acuity > 20/40 and AL > 24.5 mm were included in the study. Posterior staphyloma and maculopathy were ruled out in all the patients, and 176 eyes were included for analysis...
October 24, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/29060813/eeg-based-biometry-using-steady-state-visual-evoked-potentials
#17
Owen Falzon, Rosanne Zerafa, Tracey Camilleri, Kenneth P Camilleri
The use of brain signals for person recognition has in recent years attracted considerable interest because of the increased security and privacy these can offer when compared to conventional biometric measures. The main challenge lies in extracting features from the EEG signals that are sufficiently distinct across individuals while also being sufficiently consistent across multiple recording sessions. A range of EEG phenomena including eyes open and eyes closed activity, visual evoked potentials (VEPs) through image presentation, and other mental tasks have been studied for their use in biometry...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28991611/effect-of-fixation-stability-during-biometry-measurements-on-refractive-prediction-accuracy-in-highly-myopic-eyes
#18
Xiangjia Zhu, Wenwen He, Yu Du, Yi Lu
PURPOSE: To assess the effect of preoperative biometry fixation stability on postoperative refractive errors in highly myopic cataractous eyes. SETTING: Eye and ENT Hospital of Fudan University, Shanghai, China. DESIGN: Prospective cohort study. METHODS: Eyes of highly myopic patients and emmetropic controls were included. Routine ophthalmologic examinations and measurement of fixation stability in the 63% and 95% bivariate contour ellipse areas (BCEAs) were conducted preoperatively...
September 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28990827/ural-eye-and-medical-study-description-of-study-design-and-methodology
#19
Mukharram Bikbov, Rinat R Fayzrakhmanov, Gyulli Kazakbaeva, Jost B Jonas
PURPOSE: Since there is a scarcity on population-based health information available for Russia, we conducted this project to assess the prevalence of major ocular and systemic disorders and their associated risk factors. METHODS: A population-based cross-sectional study (Ural Eye and Medical Study (UEMS)) was performed in Bashkortostan 1300 km east of Moscow. The sampling frame consisted of all inhabitants aged over 40 years and living in an urban study area in the capital city Ufa and a rural region at 65 km outside of Ufa...
October 9, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28974839/phacoemulsification-after-penetrating-keratoplasty-due-war-injury-at-young-adult
#20
Emir Cabric, Vahid Jusufovic, Nizama Salihefendic, Amra Nadarevic Vodencarevic
INTRODUCTION: It is known that phacoemulsification of cataracts after penetrating keratoplasty there are always some difficulties and of course a higher rate of different intraoperative complications. Phacoemulsification after PK may cause significant endothelial injury and affect long term graft survival. AIM: The aim of this report is to describe one of these cases and the possible ways to manage them. CASE REPORT: We report a case o of a 31-year-old female patient, with a cataract on her left eye...
June 2017: Medical Archives
keyword
keyword
108568
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"