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https://www.readbyqxmd.com/read/28915799/analysis-of-various-factors-affecting-pupil-size-in-patients-with-glaucoma
#1
Ji Woong Park, Bong Hui Kang, Ji Won Kwon, Kyong Jin Cho
BACKGROUND: Pupil size is an important factor in predicting post-operative satisfaction. We assessed the correlation between pupil size, measured by Humphrey static perimetry, and various affecting factors in patients with glaucoma. METHODS: In total, 825 eyes of 415 patients were evaluated retrospectively. Pupil size was measured with Humphrey static perimetry. Comparisons of pupil size according to the presence of glaucoma were evaluated, as were correlations between pupil size and various factors, including age, logMAR best corrected visual acuity (BCVA), retinal nerve fiber layer (RNFL) thickness, spherical equivalent, intraocular pressure, axial length, central corneal thickness, white-to-white, and the kappa angle...
September 16, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28903935/glaucoma-and-intraocular-pressure-in-epic-norfolk-eye-study-cross-sectional-study
#2
Michelle P Y Chan, David C Broadway, Anthony P Khawaja, Jennifer L Y Yip, David F Garway-Heath, Jennifer M Burr, Robert Luben, Shabina Hayat, Nichola Dalzell, Kay-Tee Khaw, Paul J Foster
Objectives To report the distribution of intraocular pressure (IOP) by age and sex and the prevalence of glaucoma.Design Community based cross sectional observational study.Setting EPIC-Norfolk cohort in Norwich and the surrounding rural and urban areas.Participants 8623 participants aged 48-92 recruited from the community who underwent ocular examination to identify glaucoma.Main outcome measures Prevalence and characteristics of glaucoma, distribution of IOP, and the sensitivity and specificity of IOP for case finding for glaucoma...
September 13, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28855629/location-of-the-central-retinal-vessel-trunk-in-the-laminar-and-prelaminar-tissue-of-healthy-and-glaucomatous-eyes
#3
Bo Wang, Katie A Lucy, Joel S Schuman, Hiroshi Ishikawa, Richard A Bilonick, Ian A Sigal, Larry Kagemann, Chen Lu, James G Fujimoto, Gadi Wollstein
Glaucoma is a leading cause of blindness that leads to characteristic changes in the optic nerve head (ONH) region, such as nasalization of vessels. It is unknown whether the spatial location of this vessel shift inside the ONH occurs within the lamina cribrosa (LC) or the prelaminar tissue. The purpose of this study was to compare the location of the central retinal vessel trunk (CRVT) in the LC and prelaminar tissue in living healthy and glaucomatous eyes. We acquired 3-dimensional ONH scans from 119 eyes (40 healthy, 29 glaucoma suspect, and 50 glaucoma) using optical coherence tomography (OCT)...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28832670/peripapillary-retinal-splitting-visualized-on-oct-in-glaucoma-and-glaucoma-suspect-patients
#4
Dilraj S Grewal, Daniel J Merlau, Pushpanjali Giri, Marion R Munk, Amani A Fawzi, Lee M Jampol, Angelo P Tanna
PURPOSE: To identify the risk factors for development of peripapillary retinal splitting (schisis) in patients with glaucoma or suspicion of glaucoma. SETTING: Glaucoma Clinic, Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, IL. METHODS: In this institutional cross-sectional study, 495 patients (990 eyes) who had undergone spectral-domain optical coherence tomography (OCT Spectralis HRA-OCT, Heidelberg Engineering) optic nerve head (ONH) imaging and did not have identifiable optic nerve pits, pseudopits or coloboma were included...
2017: PloS One
https://www.readbyqxmd.com/read/28764889/can-home-monitoring-allow-earlier-detection-of-rapid-visual-field-progression-in-glaucoma
#5
Andrew J Anderson, Phillip A Bedggood, Yu Xiang George Kong, Keith R Martin, Algis J Vingrys
PURPOSE: Recent developments in electronic technology are making it possible to home monitor the sensitivity of the central visual field using portable devices. We used simulations to investigate whether the higher test frequency afforded by home monitoring improves the early detection of rapid visual field loss in glaucoma and how any benefits might be affected by imperfect compliance or increased variability in the home-monitoring test. DESIGN: Computer simulation, with parameter selection confirmed with a cohort study...
July 29, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28759054/the-association-between-retinal-vein-pulsation-pressure-and-optic-disc-haemorrhages-in-glaucoma
#6
Dong An, Philip House, Christopher Barry, Andrew Turpin, Allison M McKendrick, Balwantray C Chauhan, Siobhan Manners, Stuart L Graham, Dao-Yi Yu, William H Morgan
PURPOSE: To explore the potential relationship between optic disc haemorrhage, venous pulsation pressure (VPP), ocular perfusion pressures and visual field change in glaucomatous and glaucoma suspect eyes. MATERIALS AND METHODS: This prospective observational study examined 155 open angle glaucoma or glaucoma suspect eyes from 78 patients over 5 years. Patients were followed with 3 monthly non-mydriatic disc photographs, 6 monthly standard automated perimetry and annual ophthalmodynamometry...
2017: PloS One
https://www.readbyqxmd.com/read/28740736/capability-of-ophthalmology-residents-to-detect-glaucoma-using-high-dynamic-range-concept-versus-color-optic-disc-photography
#7
Mantapond Ittarat, Rath Itthipanichpong, Anita Manassakorn, Visanee Tantisevi, Sunee Chansangpetch, Prin Rojanapongpun
BACKGROUND: Assessment of color disc photograph (C-DP) is affected by image quality, which decreases the ability to detect glaucoma. High-dynamic-range (HDR) imaging provides a greater range of luminosity. Therefore, the objective of this study was to evaluate the capability of ophthalmology residents to detect glaucoma using HDR-concept disc photography (HDR-DP) compared to C-DP. DESIGN: Cross-sectional study. METHODS: Twenty subjects were classified by 3 glaucoma specialists as either glaucoma, glaucoma suspect, or control...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734815/progressive-macula-vessel-density-loss-in-primary-open-angle-glaucoma-a-longitudinal-study
#8
Takuhei Shoji, Linda M Zangwill, Tadamichi Akagi, Luke J Saunders, Adeleh Yarmohammadi, Patricia Isabel C Manalastas, Rafaella C Penteado, Robert N Weinreb
PURPOSE: To characterize the rate of macula vessel density loss in primary open-angle glaucoma (POAG), glaucoma-suspect, and healthy eyes. DESIGN: Longitudinal, observational cohort from the Diagnostic Innovations in Glaucoma Study. METHODS: One hundred eyes (32 POAG, 30 glaucoma-suspect, and 38 healthy) followed for at least 1 year with optical coherence tomography angiography (OCT-A) imaging on at least 2 visits were included. Vessel density was calculated in the macula superficial layer...
July 20, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28655730/costs-of-a-community-based-glaucoma-detection-programme-analysis-of-the-philadelphia-glaucoma-detection-and-treatment-project
#9
Laura T Pizzi, Michael Waisbourd, Lisa Hark, Harjeet Sembhi, Paul Lee, John E Crews, Jinan B Saaddine, Deon Steele, L Jay Katz
BACKGROUND: Glaucoma is the foremost cause of irreversible blindness, and more than 50% of cases remain undiagnosed. Our objective was to report the costs of a glaucoma detection programme operationalised through Philadelphia community centres. METHODS: The analysis was performed using a healthcare system perspective in 2013 US dollars. Costs of examination and educational workshops were captured. Measures were total programme costs, cost/case of glaucoma detected and cost/case of any ocular disease detected (including glaucoma)...
June 27, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28551166/24-2-visual-fields-miss-central-defects-shown-on-10-2-tests-in-glaucoma-suspects-ocular-hypertensives-and-early-glaucoma
#10
C Gustavo De Moraes, Donald C Hood, Abinaya Thenappan, Christopher A Girkin, Felipe A Medeiros, Robert N Weinreb, Linda M Zangwill, Jeffrey M Liebmann
PURPOSE: To investigate the prevalence of visual field defects in glaucomatous eyes, glaucoma suspects, and ocular hypertensives with 24-2 and 10-2 visual fields. DESIGN: Prospective, cross-sectional study. PARTICIPANTS: Patients with or suspected glaucoma tested with 24-2 and 10-2. Patients were classified into 3 groups on the basis of the presence of glaucomatous optic neuropathy (GON) and 24-2 visual field abnormalities: early glaucoma (GON and abnormal visual field, mean deviation >-6 decibels [dB]), glaucoma suspects (GON and normal visual field), and ocular hypertensives (normal disc, normal visual field, and intraocular pressure >22 mmHg)...
May 24, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28542536/comparison-of-matrix-frequency-doubling-technology-perimetry-and-standard-automated-perimetry-in-monitoring-the-development-of-visual-field-defects-for-glaucoma-suspect-eyes
#11
COMPARATIVE STUDY
Rongrong Hu, Chenkun Wang, Lyne Racette
BACKGROUND: Perimetry is indispensable for the clinical management of glaucoma suspects. Our goal is to compare the performance of standard automated perimetry (SAP) and Matrix frequency-doubling technology (FDT) perimetry in monitoring the development of visual field (VF) defects in glaucoma suspect eyes. METHODS: Longitudinal data of paired SAP and FDT from 221 eyes of 155 glaucoma suspects enrolled in the Diagnostic Innovations in Glaucoma Study or the African Descent and Glaucoma Evaluation Study were included...
2017: PloS One
https://www.readbyqxmd.com/read/28520873/association-between-neurocognitive-decline-and-visual-field-variability-in-glaucoma
#12
Alberto Diniz-Filho, Lisa Delano-Wood, Fábio B Daga, Sebastião Cronemberger, Felipe A Medeiros
Importance: Visual field variability may impair detection of glaucoma progression over time. Despite the possible overlap between neurocognitive disorders and glaucoma in older individuals, no study has investigated the association between cognitive changes and visual field variability. Objective: To evaluate the association between global neurocognitive impairment and visual field variability in patients diagnosed as having glaucoma or glaucoma suspects. Design, Setting, and Participants: This prospective observational cohort study was conducted at the Visual Performance Laboratory, University of California, San Diego...
July 1, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28486275/evaluation-of-optic-nerve-head-and-peripapillary-choroidal-vasculature-using-swept-source-optical-coherence-tomography-angiography
#13
Kyeong Ik Na, Won June Lee, Young Kook Kim, Jin Wook Jeoung, Ki Ho Park
PURPOSE: The authors visualized arterioles from the peripapillary choroid to the optic nerve head in vivo, using swept-source optical coherence tomography angiography. METHODS AND RESULTS: In this case series, we present 3 eyes with visible centripetal branches from the peripapillary choroid. The 3 eyes were diagnosed as glaucoma suspect, normal-tension glaucoma, and primary open-angle glaucoma. In the en face projection images of the choroidal layer, obtained by swept-source optical coherence tomography angiography, the vessels from the peripapillary choroid to the optic nerve head were observed in all 3 eyes; one of them was further evaluated by indocyanine green angiography using the Heidelberg retina angiograph...
July 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28461014/comparison-of-corneal-biomechanical-properties-between-indian-and-chinese-adults
#14
COMPARATIVE STUDY
Jacqueline Chua, Monisha E Nongpiur, Wanting Zhao, Yih Chung Tham, Preeti Gupta, Charumathi Sabanayagam, Tin Aung, Tien Yin Wong, Ching-Yu Cheng
PURPOSE: To investigate the difference in corneal hysteresis (CH) and corneal resistance factor (CRF) between Indian and Chinese populations. DESIGN: Population-based cross-sectional study. PARTICIPANTS: Three hundred eighty-two Singaporean Indian persons and 764 Singaporean Chinese 50 years of age or older were included from the Singapore Indian Eye Study and Singapore Chinese Eye Study, respectively. METHODS: Participants underwent standardized systemic and ocular examinations and interviewer-administered questionnaires for risk factor assessment...
September 2017: Ophthalmology
https://www.readbyqxmd.com/read/28324116/thick-prelaminar-tissue-decreases-lamina-cribrosa-visibility
#15
Katie A Lucy, Bo Wang, Joel S Schuman, Richard A Bilonick, Yun Ling, Larry Kagemann, Ian A Sigal, Ireneusz Grulkowski, Jonathan J Liu, James G Fujimoto, Hiroshi Ishikawa, Gadi Wollstein
Purpose: Evaluation of the effect of prelaminar tissue thickness on visualization of the lamina cribrosa (LC) using optical coherence tomography (OCT). Methods: The optic nerve head (ONH) region was scanned using OCT. The quality of visible LC microstructure was assessed subjectively using a grading system and objectively by analyzing the signal intensity of each scan's superpixel components. Manual delineations were made separately and in 3-dimensions quantifying prelaminar tissue thickness, analyzable regions of LC microstructure, and regions with a visible anterior LC (ALC) boundary...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28263259/head-down-posture-in-glaucoma-suspects-induces-changes-in-iop-systemic-pressure-and-perg-that-predict-future-loss-of-optic-nerve-tissue
#16
Vittorio Porciatti, William J Feuer, Pedro Monsalve, Giacinto Triolo, Luis Vazquez, John McSoley, Lori M Ventura
PURPOSE: To obtain pilot data on posture-induced changes of intraocular pressure (IOP), systemic pressure, and pattern electroretinogram (PERG) predictive of future optic nerve tissue loss glaucoma suspects (GSs). METHODS: Mean peripapillary retinal fiber layer thickness (RNFLT) was measured with optical coherence tomography 2 times/year in 28 GS aged 58±8.9 years over 5.0±0.73 years. All patients had a baseline PERG, IOP, and brachial blood pressure measurements in the seated and -10 degrees head-down-body-tilt (HDT) position...
May 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28251085/short-duration-transient-visual-evoked-potentials-and-color-reflectivity-discretization-analysis-in-glaucoma-patients-and-suspects
#17
Michael Waisbourd, Rebekah H Gensure, Ardalan Aminlari, Sonya B Shah, Nitasha Khanna, Neil Sood, Jeanne Molineaux, Alberto Gonzalez, Jonathan S Myers, L Jay Katz
AIM: To evaluate the use of short-duration transient visual evoked potentials (VEP) and color reflectivity discretization analysis (CORDA) in glaucomatous eyes, eyes suspected of having glaucoma, and healthy eyes. METHODS: The study included 136 eyes from 136 subjects: 49 eyes with glaucoma, 45 glaucoma suspect eyes, and 42 healthy eyes. Subjects underwent Humphrey visual field (VF) testing, VEP testing, as well as peripapillary retinal nerve fiber layer optical coherence tomography imaging studies with post-acquisition CORDA applied...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28243057/cost-and-detection-rate-of-glaucoma-screening-with-imaging-devices-in-a-primary-care-center
#18
Alfonso Anton, Monica Fallon, Francesc Cots, María A Sebastian, Antonio Morilla-Grasa, Sergi Mojal, Xavier Castells
PURPOSE: To analyze the cost and detection rate of a screening program for detecting glaucoma with imaging devices. MATERIALS AND METHODS: In this cross-sectional study, a glaucoma screening program was applied in a population-based sample randomly selected from a population of 23,527. Screening targeted the population at risk of glaucoma. Examinations included optic disk tomography (Heidelberg retina tomograph [HRT]), nerve fiber analysis, and tonometry. Subjects who met at least 2 of 3 endpoints (HRT outside normal limits, nerve fiber index ≥30, or tonometry ≥21 mmHg) were referred for glaucoma consultation...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28211881/a-technician-delivered-virtual-clinic-for-triaging-low-risk-glaucoma-referrals
#19
A Kotecha, J Brookes, P J Foster
PurposeThe purpose of this study is to describe the outcomes of a technician-delivered glaucoma referral triaging service with 'virtual review' of resultant data by a consultant ophthalmologist.Patients and methodsThe Glaucoma Screening Clinic reviewed new optometrist or GP-initiated glaucoma suspect referrals into a specialist ophthalmic hospital. Patients underwent testing by three ophthalmic technicians in a dedicated clinical facility. Data were reviewed at a different time and date by a consultant glaucoma ophthalmologist...
June 2017: Eye
https://www.readbyqxmd.com/read/28196730/globe-axial-length-growth-at-age-5-years-in-the-infant-aphakia-treatment-study
#20
COMPARATIVE STUDY
M Edward Wilson, Rupal H Trivedi, David R Weakley, George A Cotsonis, Scott R Lambert
PURPOSE: To report the longitudinal change in axial length (AL) from the time of unilateral cataract surgery at age 1 to 7 months to age 5 years, and to compare AL growth of operated eyes with that of fellow unoperated eyes. DESIGN: Comparative case series. PARTICIPANTS: Infants enrolled in the Infant Aphakia Treatment Study (IATS). METHODS: The AL at baseline and age 5 years and change in AL were analyzed relative to treated versus fellow eye, visual outcome, and treatment modality (contact lens [CL] vs...
May 2017: Ophthalmology
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