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Anterior segment optical coherence tomography

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https://www.readbyqxmd.com/read/29225985/late-onset-descemet-membrane-detachment-after-radial-keratotomy-resolved-with-medical-therapy
#1
P Rosetta, E F Legrottaglie, R Vinciguerra, P Vinciguerra
Purpose: To report a case of a Descemet membrane's (DM) detachment after radial keratotomy (RK). Methods: A patient (male) underwent RK (16 cuts) 20 years before referring to the Eye Center of Humanitas (Milan) for a progressive visual loss. The slit-lamp examination showed severe corneal stromal edema and a large DM detachment in the lower half of the cornea. Anterior segment optical coherence tomography (AS-OCT) and endothelial cells count confirmed DM detachment and endothelial cells damage...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29223232/morphologic-features-and-surgically-induced-astigmatism-of-femtosecond-laser-versus-manual-clear-corneal-incisions
#2
Sha Zhu, Naibin Qu, Wei Wang, Yanan Zhu, Xingchao Shentu, Peiqing Chen, Wen Xu, Ke Yao
PURPOSE: To compare the morphologic features and surgically induced astigmatism (SIA) between laser and manual clear corneal incisions (CCIs) after femtosecond laser-assisted cataract surgery. SETTING: Eye Center, 2nd Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, China. DESIGN: Prospective case series. METHODS: Patients had femtosecond laser-assisted cataract surgery with a CCI created with the laser or manually after random allocation...
November 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29217025/correlation-of-novel-pax6-gene-abnormalities-in-aniridia-and-clinical-presentation
#3
Naif S Sannan, Cheryl Y Gregory-Evans, Christopher J Lyons, Anna M Lehman, Sylvie Langlois, Simon J Warner, Helen Zakrzewski, Kevin Gregory-Evans
OBJECTIVE: To describe the clinical presentation and genotype of subjects with aniridia with a particular focus on foveal hypoplasia. DESIGN: Prospective cohort study. PARTICIPANTS: Thirty-three Canadian participants with aniridia and of various ethnic backgrounds residing in British Columbia. METHODS: Full ophthalmic examinations and posterior segment spectral domain-optical coherence tomography (SD-OCT) imaging were performed...
December 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29216872/late-onset-diffuse-lamellar-keratitis-4%C3%A2-years-after-femtosecond-laser-assisted-small-incision-lenticule-extraction-a-case-report
#4
Meiyan Li, Dong Yang, Yingjun Chen, Meng Li, Tian Han, Xingtao Zhou, Katherine Ni
BACKGROUND: To report a first case of late-onset diffuse lamellar keratitis (DLK) occurring 4 years after femtosecond laser-assisted small incision lenticule extraction (SMILE). CASE PRESENTATION: A 41-year-old man who underwent SMILE 4 years prior developed DLK in the right eye 1 day after he was struck in the eye by a finger while playing with his son. Slim-lamp microscopy and anterior segment optical coherence tomography (AS-OCT) were used to evaluate the cornea of the right eye...
December 8, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29210959/acute-frosted-retinal-periphlebitis-in-a-patient-with-mediterranean-fever
#5
Köse Özlem, Willermain François, Caspers Laure, Postelmans Laurence, El Ouardighi Hind, Guillaume Marie-Paule, Makhoul Dorine
PURPOSE: To present a case of frosted branch periphlebitis in a young Armenian patient with familial Mediterranean fever. METHODS: Case report. RESULTS: A 37-year-old man presented with a unilateral decreased visual acuity and floaters for 4 days on the left eye (LE). Visual acuity was 20/20 in the right eye (RE) and 20/28 in the LE. Anterior segment and fundus examinations of the RE were normal. Slit-lamp examination of LE revealed a mild nongranulomatous anterior uveitis and vitritis...
November 23, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29208818/corneal-edema-after-phacoemulsification
#6
REVIEW
Namrata Sharma, Deepali Singhal, Sreelakshmi P Nair, Pranita Sahay, S S Sreeshankar, Prafulla Kumar Maharana
Phacoemulsification is the most commonly performed cataract surgery in this era. With all the recent advances in investigations and management of cataract through phacoemulsification, most of the patients are able to achieve excellent visual outcome. Corneal edema after phacoemulsification in the immediate postoperative period often leads to patient dissatisfaction and worsening of outcome. Delayed onset corneal edema often warrants endothelial keratoplasty. This review highlights the etiopathogenesis, risk factors, and management of corneal edema in the acute phase including descemet's membrane detachment (DMD) and toxic anterior segment syndrome...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29205873/evaluation-of-dry-eye-using-anterior-segment-optical-coherence-tomography-in-patients-with-end-stage-renal-disease-undergoing-hemodialysis
#7
Öznur Kal, Mahmut Oğuz Ulusoy, Ali Kal, Gülşah Tanriaşki, Şefik Cezairlioğlu
The aim of the present study was to evaluate dry eye parameters with conventional tests and tear meniscus with Anterior Segment Optical Coherence Tomography (AS-OCT) in patients with end-stage renal disease (ESRD). Thirty-eight ESRD patients undergoing hemodialysis, and 40 healthy individuals were enrolled. An ocular surface disease index questionnaire (OSDI) was administered. Before conventional dry eye tests, tear meniscus were evaluated using AS-OCT. After a complete ocular examination, Schirmer and break-up time (BUT) tests were performed and probable corneal staining was investigated...
December 4, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/29194201/evaluation-of-long-term-anatomic-changes-following-canaloplasty-with-anterior-segment-spectral-domain-optical-coherence-tomography-and-ultrasound-biomicroscopy
#8
David Kuerten, Niklas Plange, Jakob Becker, Peter Walter, Matthias Fuest
BACKGROUND: To analyze long-term structural changes in conjunctiva, sclera and Schlemm canal (SC) with anterior segment optical coherence tomography (AS-OCT) and ultrasound biomicroscopy (UBM) following uncomplicated canaloplasty. MATERIALS AND METHODS: Fifteen patients with planned canaloplasty and no intraoperative complications were included in this prospective study. AS-OCT images were acquired at 1, 3, 6 months and at a long-term time point (20±4.9 mo) postsurgery...
November 30, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29194197/diurnal-variation-of-optical-coherence-tomography-measurements-of-static-and-dynamic-anterior-segment-parameters
#9
Benjamin Y Xu, Rafaella Cleto Penteado, Robert Neal Weinreb
PURPOSE: To examine the diurnal variation of static and dynamic anterior segment parameters in young, healthy eyes by comparing anterior segment optical coherence tomography (AS-OCT) measurements obtained in the morning and evening and also in the light and dark. METHODS: Twenty-two subjects ranging from ages 19 to 47 years with no past ocular history were selected (12 male, 10 female; mean age 34.2 y). Imaging was performed with the Tomey CASIA2 AS-OCT device in two fixed lighting environments, light and dark, between the hours of 0830 to 1000 and 1730 to 1900...
November 30, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/29193858/exophiala-phaeomuriformis-keratitis-in-a-subarctic-climate-region-a-case-report
#10
André Vicente, Fátima Pedrosa Domellöf, Berit Byström
PURPOSE: To report a case of Exophiala phaeomuriformis mycotic keratitis in a patient from a subarctic climate region. Dematiaceous fungi (black yeasts) have been gaining importance as corneal keratitis and ulcer causative agents in certain regions, but no cases have been described in Scandinavia. METHODS: Case report of a patient with a persistent corneal erosion that eventually presented a brown-pigmented infiltrate. The patient had a history of several months of topical therapy comprising medication for glaucoma, corticosteroids and antibiotics...
November 29, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/29193702/role-of-anterior-segment-optical-coherence-tomography-in-angle-closure-disease-a-review
#11
REVIEW
Natalia Porporato, Mani Baskaran, Tin Aung
This article aims to review the published literature pertaining to the use of anterior segment optical coherence tomography (AS-OCT) in the evaluation of angle closure disease. Searches on the available published literature were last conducted on June 15, 2017. Rated as Level I evidence, we found that AS-OCT has shown good sensitivity and moderate diagnostic accuracy to detect narrow angles when compared with gonioscopy. AS-OCT quantitative and qualitative parameters demonstrated strong association with the presence of gonioscopically closed-angles...
November 30, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29191661/anterior-segment-dimensions-following-laser-iridotomy-in-acute-primary-angle-closure-and-fellow-eyes
#12
Sasan Moghimi, Faezeh Bijani, Rebecca Chen, Mehdi Yasseri, Mingguang He, Shan C Lin, Robert N Weinreb
PURPOSE: To compare the change in anterior segment morphology after laser peripheral iridotomy (LPI)in acute primary angle closure(APAC) and their fellow eyes Design: Prospective, fellow-eye matched case series METHOD: In this study 42 individuals with unilateral episode of APAC were enrolled and the anterior segment optical coherence tomography (ASOCT) images were obtained in both eyes at baseline and at six weeks after LPI. A linear mixed effects model was used to compare changes in anterior chamber and angle variables with consideration of laterality as the random effect and pupil diameter as the fixed effect...
November 27, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29190797/topographic-characteristics-after-descemet-s-membrane-endothelial-keratoplasty-and-descemet-s-stripping-automated-endothelial-keratoplasty
#13
Takahiko Hayashi, Takefumi Yamaguchi, Kentaro Yuda, Naoko Kato, Yoshiyuki Satake, Jun Shimazaki
PURPOSE: To investigate the topographic characteristics of the posterior corneal surface after Descemet's endothelial membrane keratoplasty (DMEK) and Descemet's stripping automated endothelial keratoplasty (DSAEK) and their effects on postoperative visual acuity. METHODS: Nineteen eyes of 19 patients after DMEK, 23 eyes of 23 patients after DSAEK, and 18 eyes of 18 control subjects were retrospectively analyzed. Best spectacle-corrected visual acuity (BSCVA), aberration factors (higher-order aberrations [HOAs], spherical aberrations [SAs], and coma aberrations [Comas] at 6...
2017: PloS One
https://www.readbyqxmd.com/read/29185835/biometric-differences-between-unilateral-chronic-primary-angle-closure-glaucoma-and-fellow-non-glaucomatous-eyes
#14
Wei Wang, Xinyi Li, Shida Chen, Wenbin Huang, Xiulan Zhang
PURPOSE: To compare biometric differences between eyes with unilateral chronic primary angle-closure glaucoma (PACG) and fellow non-glaucomatous eyes in the same patient. METHODS: Clinical data and imaging records of 17 patients with unilateral PACG were retrospectively reviewed. The fellow eyes with primary angle-closure (PAC) or primary angle-closure suspected (PACS) were grouped in Group 1. The PACG eyes were set as Group 2. The biometric parameters of both eyes were measured by IOL-Master, anterior segment optical coherence tomography (AS-OCT), and swept source OCT...
November 29, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/29183046/in-vivo-analysis-of-angle-dysgenesis-in-primary-congenital-juvenile-and-adult-onset-open-angle-glaucoma
#15
Viney Gupta, Abadh K Chaurasia, Shikha Gupta, Bhavya Gorimanipalli, Ajay Sharma, Amisha Gupta
Purpose: The purpose of this study was to comparatively evaluate angle dysgenesis in vivo, among congenital, juvenile, and adult-onset open angle glaucoma patients. Methods: A cross-sectional evaluation of 96 glaucoma patients, 22 children with primary congenital glaucoma (PCG) old enough to cooperate for optical coherence tomography (OCT), 34 juvenile-onset open angle glaucoma (JOAG) patients, 40 adult-onset primary open angle glaucoma (POAG), and 30 healthy subjects, was carried out using high-resolution anterior segment spectral domain (SD)-OCT...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29181315/bimanual-microincision-cataract-surgery-with-implantation-of-the-new-incise%C3%A2-mj14-intraocular-lens-through-a-1-4-mm-incision
#16
Gian Maria Cavallini, Tommaso Verdina, Michele De Maria, Elisa Fornasari, Giulio Torlai, Veronica Volante, Simone Donati, Carlo Cagini
AIM: To analyze the visual outcomes and the posterior capsule opacification (PCO) with the new Incise® MJ14 intraocular lens (IOL) implanted through a 1.4 mm clear corneal incision (CCI) in patients who underwent bimanual microincision cataract surgery (B-MICS). METHODS: Eighty eyes which underwent cataract surgery using B-MICS technique performed by the same experienced surgeon were included in the study: 40 eyes were implanted with an Incise® MJ14 IOL through a 1...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29176786/in-vivo-imaging-of-palisades-of-vogt-in-dry-eye-versus-normal-subjects-using-en-face-spectral-domain-optical-coherence-tomography
#17
Wajdene Ghouali, Rachid Tahiri Joutei Hassani, Zoubir Djerada, Hong Liang, Mohamed El Sanharawi, Antoine Labbé, Christophe Baudouin
PURPOSE: To evaluate a possible clinical application of spectral-domain optical coherence tomography (SD-OCT) using en-face module for the imaging of the corneoscleral limbus in normal subjects and dry eye patients. PATIENTS AND METHODS: Seventy-six subjects were included in this study. Seventy eyes of 35 consecutive patients with dry eye disease and 82 eyes of 41 healthy control subjects were investigated. All subjects were examined with the Avanti RTVue® anterior segment OCT...
2017: PloS One
https://www.readbyqxmd.com/read/29171504/intraoperative-optical-coherence-tomography-to-evaluate-the-effect-of-the-eyelid-speculum-on-corneal-pachymetry-during-accelerated-corneal-cross-linking-9%C3%A2-mw-cm-2
#18
R Ghaffari, M Mortazavi, P Anvari, A Salamat Rad, F Alipour, F Hafezi, S Asgari, H Hashemi
PurposeTo investigate intraoperative anterior segment optical coherence tomography (AS-OCT) to compare pachymetry changes between two methods (group 1: speculum-on, group 2: speculum-off during riboflavin instillation stage) during corneal cross-linking /CXL) (9 mW/cm(2) for 10 min) in keratoconic patients.MethodsIn this interventional case series, 11 eyes (11 patients) in group 1 and 14 eyes (14 patients) in group 2 were enrolled. Pachymetry measurements by spectral domain OCT was performed at baseline, after epithelial removal, after 30 min of imbibition with riboflavin, and after UV irradiation...
November 24, 2017: Eye
https://www.readbyqxmd.com/read/29161717/subconjunctival-prgf-fibrin-membrane-as-an-adjuvant-to-nonpenetrating-deep-sclerectomy-a-2-year-pilot-study
#19
Iñaki Rodríguez-Agirretxe, Vanesa Freire, Francisco Muruzabal, Gorka Orive, Eduardo Anitua, Elio Díez-Feijóo, Arantxa Acera
PURPOSE: To evaluate the potential role of the autologous PRGF (plasma rich in growth factors) fibrin membrane in tissue regeneration after glaucoma filtering surgery. MATERIALS AND METHODS: Ten patients with medically uncontrolled primary open-angle glaucoma underwent nonpenetrating deep sclerectomy and were treated with PRGF fibrin membrane as adjuvant. Intraocular pressure reduction was the primary outcome. This variable was measured preoperatively and also at each follow-up visit...
November 22, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/29160595/advanced-anterior-segment-imaging-in-keratoconus-a-review
#20
REVIEW
Akilesh Gokul, Hans R Vellara, Dipika V Patel
Advances in anterior segment imaging have enhanced our ability to detect keratoconus in its early stages and characterise the pathologic changes that occur. Computerised corneal tomography has elucidated the alterations in shape of the anterior and posterior corneal surfaces and alterations in thickness as the disease progresses. Automated screening indices such as the keratoconus screening index were developed to assist in detecting keratoconus in suspicious cases. In vivo assessment of keratoconic corneas has revealed that compromised corneal biomechanics can now be measured clinically...
November 21, 2017: Clinical & Experimental Ophthalmology
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