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Anterior segment optical coherence tomography

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https://www.readbyqxmd.com/read/28806400/changes-in-the-anterior-segment-after-cycloplegia-with-a-biometer-using-swept-source-optical-coherence-tomography
#1
Tomoaki Higashiyama, Maki Iwasa, Masahito Ohji
The aim of this study was to investigate changes in the anterior segment of the eye after cycloplegia. A biometer combined with swept-source optical coherence tomography (SSOCT) was used for measurements. Patients with strabismus or amblyopia who underwent cycloplegia were included. The axial length, central corneal thickness, anterior chamber depth, and lens thickness were measured with the biometer-SSOCT system before and after cycloplegia. Altogether, 10 eyes of 10 patients (mean age 7.20 ± 3.08 years, range 4-14 years) were evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/28806213/maintenance-of-good-visual-acuity-in-best-disease-associated-with-chronic-bilateral-serous-macular-detachment
#2
Sarra Gattoussi, Camiel J F Boon, K Bailey Freund
PURPOSE: We describe the long-term follow-up of a patient with multifocal Best disease with chronic bilateral serous macular detachment and unusual peripheral findings associated with a novel mutation in the BEST1 gene. METHODS: Case report. RESULTS: A 59-year-old white woman was referred for an evaluation of her macular findings in 1992. There was a family history of Best disease in the patient's mother and a male sibling. Her medical history was unremarkable...
August 10, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28801092/anterior-segment-optical-coherence-tomography-for-the-diagnosis-of-corneal-dystrophies-according-to-the-ic3d-classification
#3
REVIEW
Sebastian Siebelmann, Paula Scholz, Simon Sonnenschein, Björn Bachmann, Mario Matthaei, Claus Cursiefen, Ludwig M Heindl
Corneal dystrophies are categorized according to the International Committee for Classification of Corneal Dystrophies (IC3D) classification, and their treatment depends on the affected structures and layer of the cornea. Therefore, estimating the depth and extent of the morphological changes due to the specific dystrophy is crucial when deciding between different treatment options. Besides superficial laser treatments and penetrating keratoplasty, minimal invasive lamellar keratoplasties such as Descemet membrane endothelial keratoplasty), deep anterior lamellar keratoplasty, or Descemet stripping automated keratoplasty have become increasingly popular to exchange the specific opaque layers in dystrophic eyes...
August 8, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28774518/proportion-of-undetected-narrow-angles-or-angle-closure-in-cataract-surgery-referrals
#4
Devesh K Varma, Stephanie N Kletke, Amandeep S Rai, Iqbal Ike K Ahmed
OBJECTIVE: To determine the proportion of patients referred for cataract surgery consultation who had undetected narrow angles (primary angle closure suspect [PACS], primary angle closure [PAC], or primary angle closure glaucoma [PACG]). DESIGN: Retrospective chart review. PARTICIPANTS: Phakic patients referred by eye care providers (optometrists and ophthalmologists) to a tertiary centre for cataract management between July 1, 2010 and June 30, 2012 were identified and reviewed...
August 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28772298/measurement-of-gamma-irradiated-corneal-patch-graft-thickness-after-aqueous-drainage-device-surgery
#5
Regina A de Luna, Ameera Moledina, Jiangxia Wang, Henry D Jampel
Importance: Exposure of the tube of an aqueous drainage device (ADD) through the conjunctiva is a serious complication of ADD surgery. Although placement of gamma-irradiated sterile cornea (GISC) as a patch graft over the tube is commonly performed, exposures still occur. Objectives: To measure GISC patch graft thickness as a function of time after surgery, estimate the rate of graft thinning, and determine risk factors for graft thinning. Design, Setting, and Participants: Cross-sectional study of graft thickness using anterior segment optic coherence tomography (AS-OCT) was conducted at the Wilmer Eye Institute at Johns Hopkins Hospital...
August 3, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28767459/bleb-grading-using-anterior-segment-optical-coherence-tomography
#6
Sanjay Asrani, Joanne C Wen
No abstract text is available yet for this article.
August 1, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28767457/comment-on-comparison-of-anterior-segment-optical-coherence-tomography-bleb-grading-moorfields-bleb-grading-system-and-intraocular-pressure-after-trabeculectomy
#7
Basak Can Ermerak, Mehmet Baykara, Hikmet Ozcetin
No abstract text is available yet for this article.
August 1, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28763561/establishment-and-characterization-of-an-acute-model-of-ocular-hypertension-by-laser-induced-occlusion-of-episcleral-veins
#8
Liwei Zhang, Guangyu Li, Meng Shi, Hsin-Hua Liu, Shaokui Ge, Yvonne Ou, John G Flanagan, Lu Chen
Purpose: This study was designed to develop and characterize a laser-induced model of acute intraocular hypertension that permits the study of the anterior segment of the eye. Methods: CD1 mice aged 5 and 8 weeks were examined for elevation of IOP induced by laser photocoagulation. We compared between occlusion of episcleral veins alone and when combined with 270° limbal vessel occlusion. Anterior chamber angle, corneal thickness, and retinal nerve fiber layer (RNFL) thickness were evaluated by anterior- and posterior-segment optical coherence tomography (OCT)...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28752695/changes-in-tear-volume-after-3-diquafosol-treatment-in-patients-with-dry-eye-syndrome-an-anterior-segment-spectral-domain-optical-coherence-tomography-study
#9
Kwan Bok Lee, Kyung Min Koh, Young A Kwon, Sang Wroul Song, Byoung Yeop Kim, Jae Lim Chung
PURPOSE: To evaluate changes in the tear meniscus area and tear meniscus height over time in patients with dry eye syndrome, using anterior segment spectral-domain optical coherence tomography after the instillation of 3% diquafosol ophthalmic solution. METHODS: Sixty eyes from 30 patients with mild to moderate dry eye syndrome were included. Tear meniscus images acquired by anterior segment spectral-domain optical coherence tomography were analyzed using National Institutes of Health's image-analysis software (ImageJ 1...
August 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28751986/evaluation-of-bleb-morphology-and-reduction-in-iop-and-glaucoma-medication-following-implantation-of-a-novel-gel-stent
#10
Antonio Maria Fea, Roberta Spinetta, Paola Maria Loredana Cannizzo, Giulia Consolandi, Carlo Lavia, Vittoria Aragno, Francesco Germinetti, Teresa Rolle
OBJECTIVE: To evaluate the efficacy and safety of the Xen Gel Stent and provide a macro- and microscopic analyses of bleb morphology. METHODS: A prospective 12-month study on patients with primary open-angle glaucoma. Patients underwent implantation of the XEN Gel Stent (Allergan INC, Dublin, Ireland) either alone or combined with a cataract surgery. Biomicroscopy, in vivo confocal microscopy (IVCM), and anterior segment-optical coherence tomography (AS-OCT) were used to assess bleb morphology...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28743412/pseudoexfoliation-signs-in-the-anterior-segment-assessed-by-optical-coherence-tomography-and-scheimpflug-device
#11
J I Fernández-Vigo, L de-Pablo Gómez de Liaño, I Sánchez-Guillen, A Macarro-Merino, C Fernández-Vigo, J García-Feijóo, J A Fernández-Vigo
OBJECTIVE: To evaluate different anterior segment parameters in eyes with pseudoexfoliation (PSX), fellow eyes, and controls using optical coherence tomography and a Scheimpflug imaging system. METHODS: Three groups were studied: 44 eyes of 44 patients with PSX, 30 clinically unaffected fellow eyes, and 148 eyes of 148 healthy controls. The anterior chamber depth and volume, corneal volume and thickness, pupil diameter and corneal densitometry were measured using a Scheimpflug imaging system (Pentacam, Oculus Inc...
July 22, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28736046/the-optical-imaging-of-tarantula-hair-corneal-injury-one-case-report-and-review-of-the-literature
#12
Yuedong Hu, Yuanyuan Xu
INTRODUCTION: Tarantulas belonging to the Theraphosidae family are more and more popular as family pets. Ocular injuries caused by tarantulas are reported in several articles. We hereby report the first known case of ocular injury caused by a tarantula in China. CASE: A 22-year-old girl was referred to our hospital with one-week history of red and irritated left eye after she grabbed her molting Chilean Rose Tarantula. Her best-corrected visual acuity was 20/20 on both eyes...
July 20, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28733050/the-optical-imaging-of-an-idiopathic-paracentral-acute-middle-maculopathy-chinese-young-man-and-review-of-the-literatures
#13
REVIEW
Yanyan Chen, Yuedong Hu
We report a case of idiopathic paracentral acute middle maculopathy with typical optical imaging and clinical features. A 26-year-old Chinese policeman presented with a 20-day history of paracentral scotoma in the left eye after early wake-up and long-time working in front of computer the day before. He experienced sudden-onset strong flash in his left eye. Paracentral scotoma appeared in his left eye after 6hours of rest. The general history was negative. His best-corrected visual acuity was 20/20 OU. Anterior segment, dilated fundus examination, papillary evaluation and intraocular pressure were normal...
July 18, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28732610/intraocular-pressure-change-after-phacoemulsification-in-angle-closure-eyes-without-medical-therapy
#14
Eray Atalay, Monisha E Nongpiur, Mani Baskaran, Shamira A Perera, Tina T Wong, Desmond Quek, Tin Aung
PURPOSE: To evaluate the intraocular pressure (IOP) change and associated factors 6 months after phacoemulsification in eyes with primary angle-closure suspect (PACS) and eyes with primary angle closure (PAC) that had no medical therapy. SETTING: Singapore National Eye Center, Singapore, Singapore. DESIGN: Retrospective case series. METHODS: Patients with PACS or PAC (with corrected distance visual acuity <20/40) who had uneventful phacoemulsification were recruited...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28729370/anterior-segment-optical-coherence-tomography-angle-and-vault-analysis-after-toric-and-non-toric-implantable-collamer-lens-v4c-implantation-in-patients-with-high-myopia
#15
Guillermo Garcia-De la Rosa, Andrew Olivo-Payne, Juan Carlos Serna-Ojeda, Maria Sandra Salazar-Ramos, Alejandro Lichtinger, Arturo Gomez-Bastar, Arturo Ramirez-Miranda, Alejandro Navas, Enrique O Graue-Hernandez
OBJECTIVE: To assess anterior segment changes, including iridocorneal angle and vault, after toric and non-toric implantable collamer lens (ICL) V4c (STAAR Surgical AG) implantation under different lighting conditions. METHODS: Longitudinal, prospective, case series. Patients with high myopia (>6 dioptres) underwent toric and non-toric ICL V4c implantation. Optical coherence tomography measurements were taken under different lighting conditions preoperatively and at 1 week and 1, 6 and 12 months of follow-up...
July 20, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28728288/-descemet-s-membrane-endothelial-keratoplasty-for-treatment-of-patients-with-corneal-endothelial-decompensation
#16
T Huang, C Ouyang, J Zhan, L Jiang
Objective: To evaluate the clinical outcomes of Descemet's membrane endothelial keratoplasty (DMEK) for treatment of patients with corneal endothelial decompensation in China. Methods: Interventional case series. Ten patients (10 eyes) with the diagnosis of corneal endothelial decompensation received DMEK during July 2016 and September 2016 in Zhongshan Ophthalmic Center. Descemet's membrane of the donor tissue was carefully stripped from the underlying stroma manually and cut with a 7.75- or 8.0-mm-diameter donor punch...
July 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28725485/segmentation-errors-in-macular-ganglion-cell-analysis-as-determined-by-optical-coherence-tomography-in-eyes-with-macular-pathology
#17
Rayan A Alshareef, Abhilash Goud, Mikel Mikhail, Hady Saheb, Hari Kumar Peguda, Sunila Dumpala, Shruthi Rapole, Jay Chhablani
BACKGROUND: To evaluate artifacts in macular ganglion cell inner plexiform layer (GCIPL) thickness measurement in eyes with retinal pathology using spectral-domain optical coherence tomography (SD OCT). METHODS: Retrospective analysis of color-coded maps, infrared images and 128 horizontal B-scans (acquired in the macular ganglion cell inner plexiform layer scans), using the Cirrus HD-OCT (Carl Zeiss Meditec, Dublin, CA). The study population included 105 eyes with various macular conditions compared to 30 eyes of 30 age-matched healthy volunteers...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28724824/late-onset-descemet-s-membrane-detachment-20-years-after-penetrating-keratoplasty
#18
Sharon D'Souza, Narpat Solanki, K R Sushma, Priyank Solanki
This paper reports a case of spontaneous Descemet's Membrane (DM ) detachment 20-years after penetrating keratoplasty (PK). The patient presented with acute onset blurred vision in the right eye associated with mild ocular discomfort. There was no prior history of trauma. The patient had undergone PK in the right eye 20 years back. Detailed ophthalmic examination showed best corrected visual acuity of hand movements close to face in the right eye and 20/80 in the left eye. The right eye showed diffuse graft edema but no congestion, epithelial defect, or loss of continuity of graft-host junction to suggest a traumatic etiology...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28724823/topography-guided-neutralization-technique-for-the-management-of-flap-complication-in-laser-in-situ-keratomileusis
#19
Rohit Shetty, Rushad Shroff, Tushar Grover, T Roshan, Chaitra Jayadev
A 29-year-old male was referred following a flap loss after the creation of a thin, irregular flap with a visual acuity of logMAR 0.1 with -2.0 DS-2.75 DC × 175°. Corneal topography and anterior segment optical coherence tomography revealed an irregular corneal curvature and epithelial profile. Phototherapeutic keratectomy (PTK) followed by Topography - Guided Custom Ablation Treatment (TCAT), as a modification of the topographic neutralization technique protocol, was planned to regularize the corneal surface and treat the residual refractive error...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28724813/correlation-between-the-graft-host-junction-of-penetrating-keratoplasty-by-anterior-segment-optical-coherence-tomography-and-the-magnitude-of-postoperative-astigmatism
#20
Ghada Azab Nassar, Shaimaa Abd El Salam Arfeen
PURPOSE: This study aimed to evaluate the alignment pattern of the graft-host junction after penetrating keratoplasty (PK) by anterior segment-optical coherence tomography (AS-OCT) and to correlate this pattern with the magnitude of postoperative astigmatism. METHODS: This retrospective observational study was carried out on forty patients who underwent PK from February 2013 to August 2014. AS-OCT was performed, and the graft-host junctions were classified into well-apposed junction, malapposed junction, and equally apposed junction...
July 2017: Indian Journal of Ophthalmology
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