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https://www.readbyqxmd.com/read/29468296/-corneal-densitometry-value-for-keratoconus-diagnostics
#1
REVIEW
M Alnawaiseh, N Eter
BACKGROUND: Corneal densitometry, based on the Scheimpflug principle, is a useful noninvasive tool for quantitative evaluation of the optical quality of the cornea. It enables us to evaluate corneal transparency in the different corneal layers and different annuli. In this article, we discuss the basis of application of corneal densitometry measurements and summarize findings in patients with keratoconus. METHODS: This article is based on a selective literature review and analysis of own data...
February 21, 2018: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/29453698/corneal-collagen-cross-linking-for-the-management-of-mycotic-keratitis
#2
Elif Erdem, Ibrahim Inan Harbiyeli, Hazal Boral, Macit Ilkit, Meltem Yagmur, Reha Ersoz
PURPOSE: To evaluate the efficiency of corneal collagen cross-linking (CXL) in addition to topical voriconazole in cases with mycotic keratitis. DESIGN: Retrospective case series in a tertiary university hospital. PARTICIPANTS: CXL was performed on 13 patients with mycotic keratitis who presented poor or no response to topical voriconazole treatment. METHODS: The clinical features, symptoms, treatment results and complications were recorded retrospectively...
February 16, 2018: Mycopathologia
https://www.readbyqxmd.com/read/29439091/evaluation-of-galectin-1-and-galectin-3-as-prospective-biomarkers-in-keratoconus
#3
Frans Eberth Costa Andrade, Joyce Luciana Covre, Lisandra Ramos, Rossen Mihaylov Hazarbassanov, Myrna Serapião Dos Santos, Mauro Campos, José Álvaro Pereira Gomes, Cristiane Damas Gil
AIMS: To evaluate the expression of β-galactoside-binding proteins galectin (Gal)-1 and Gal-3 in patients with keratoconus (KC) and postcorneal collagen cross-linking (CXL) treatment in vitro. METHODS: Tear fluid, cornea samples and conjunctival impression cytology specimens from control and KC patients were used to evaluate Gal-1 and Gal-3 expressions. Primary keratocytes were isolated by collagenase digestion from surgically removed corneas of five normal or KC human corneal buttons and cultured in Dulbecco's modified eagle medium/Ham's F12 medium supplemented with 2% fetal bovine serum...
February 8, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29429144/results-of-ethanol-assisted-epithelium-on-corneal-cross-linking-with-and-without-intrastromal-corneal-ring-implantation
#4
Orhan Ayar, Orkun Muftuoglu, Mehmet Orcun Akdemir, Mehmet Cuneyt Ozmen
PURPOSE: To evaluate the topographic, refractive, and pachymetric changes after ethanol-assisted transepithelial corneal cross-linking (CXL) to stabilize progression of keratoconus (KC). PATIENTS AND METHODS: This study retrospectively evaluated the long-term topographic, refractive, and pachymetric changes in patients diagnosed with KC who underwent corneal cross-linking and/or intrastromal corneal ring segment (ICRS) implantation. The subjects were divided into three groups, corresponding to eyes treated with CXL alone (group 1), CXL and ICRS at the same time (group 2), and CXL after ICRS implantation (group 3)...
February 10, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29420622/study-of-retina-and-choroid-biological-parameters-of-rhesus-monkeys-eyes-on-scleral-collagen-cross-linking-by-riboflavin-and-ultraviolet-a
#5
Mingshen Sun, Fengju Zhang, Bowen Ouyang, Mengmeng Wang, Yu Li, Xuan Jiao, Li Zhang, Ningli Wang
To evaluate ocular fundus biological changes after scleral collagen cross-linking (CXL) with riboflavin/ ultraviolet A (UVA) on rhesus monkeys in vivo by analyzing retina and choroid biological parameters. Six 3-year-old male rhesus monkeys (12 eyes) were observed in this study, with scleral CXL procedures applied on superior temporal equatorial sclera on random eyes of all rhesus. Optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) examination were performed before and 1 week, 1 month, 3 months and 6 months after CXL...
2018: PloS One
https://www.readbyqxmd.com/read/29381972/outcomes-of-iontophoretic-corneal-collagen-crosslinking-in-keratoconic-eyes-with-very-thin-corneas
#6
Alina Cantemir, Anisia-Iuliana Alexa, Bogdan Gabriel Galan, Nicoleta Anton, Roxana Elena Ciuntu, Ciprian Danielescu, Dorin Chiselita, Danut Costin
The purpose of this retrospective study was to report the results of iontophoretic corneal collagen crosslinking (I-CXL) with riboflavin and ultraviolet A irradiation in patients affected by keratoconus, each with thinnest pachymetry values of <400 μ (with epithelium) and not treatable using standard epithelium-off technique.Fifteen eyes of 15 patients affected by progressive keratoconus and with thinnest pachymetry values <400 μ underwent I-CXL. The uncorrected (UDVA) and corrected (CDVA) distance visual acuity, maximum and minimum keratometry (K max and K min) readings, corneal thickness at the thinnest point (CTTP), endothelial cell density (ECD), and intraocular pressure (IOP) were assessed before I-CXL, at 1, 3, 6, and 12 months postoperatively...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29375990/5-year-follow-up-of-combined-non-topography-guided-photorefractive-keratectomy-and-corneal-collagen-cross-linking-for-keratoconus
#7
Abdulrahman Mohammed Al-Amri
AIM: To evaluate the visual outcomes of simultaneous non-topography guided photorefractive keratectomy (PRK) and corneal collagen cross-linking (CXL) in eyes with keratoconus 5y after the procedure. METHODS: Prospective, interventional, non-randomized, and non-controlled case series design was used. Sixty eyes of 30 patients (16 males and 14 females; age: 21-41y) with mild, non-progressive (stages 1-2) keratoconus were enrolled. Refraction, uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA), flat and steep keratometry readings, and adverse events were evaluated preoperatively and postoperatively...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29339637/corneal-collagen-crosslinking-combined-with-phototherapeutic-keratectomy-and-photorefractive-keratectomy-for-corneal-ectasia-after-laser-in-situ-keratomileusis
#8
Wei Zhu, Yunfei Han, Changxia Cui, Wenwen Xu, Xuan Wang, Xiaoxiao Dou, Linlin Xu, Yanyun Xu, Guoying Mu
PURPOSE: The aim of this study was to analyze the effects of corneal crosslinking (CXL) combined with phototherapeutic keratectomy (PTK) and photorefractive keratectomy (PRK) in halting the progression and improving the visual function of corneal ectasia after laser in situ keratomileusis (LASIK). METHODS: PTK-PRK-CXL was performed on 14 eyes of 14 patients who developed corneal ectasia after LASIK. The visual acuity, spherical refraction and cylinder, corneal topography indices, thinnest corneal thickness (TCT), and endothelial cell count were evaluated at baseline and at 1, 3, 6, and 12 months postoperatively...
January 17, 2018: Ophthalmic Research
https://www.readbyqxmd.com/read/29333909/subclinical-inflammatory-response-accelerated-versus-standard-corneal-cross-linking
#9
Alireza Hedayatfar, Hassan Hashemi, Gholamhossein Aghaei, Nahid Ashraf, Soheila Asgari
PURPOSE: To compare the subclinical inflammatory response (as measured by anterior chamber flare) induced after standard (3 mW/cm2, 30 min) and accelerated (18 mW/cm2, 5 min) corneal cross-linking (CXL). METHODS: In this comparative, non-randomized study, patients with progressive keratoconus who underwent standard or accelerated CXL were studied. Laser flare photometery (FM-600; Kowa, Tokyo, Japan) was used to measure anterior chamber flare preoperatively and at 1 week, 1 month, 3 months, and 6 months after the procedure...
January 15, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29319598/corneal-collagen-cross-linking-with-riboflavin-and-ultraviolet-a-light-for-pediatric-keratoconus-ten-year-results
#10
Cosimo Mazzotta, Claudio Traversi, Stefano Baiocchi, Simone Bagaglia, Orsola Caporossi, Antonio Villano, Aldo Caporossi
PURPOSE: To assess the 10-year follow-up efficacy and safety of riboflavin ultraviolet A-induced cross-linking (CXL) in a population of pediatric patients aged 18 years and younger with progressive keratoconus (KC). METHODS: The prospective longitudinal cohort study included 62 eyes of 47 keratoconic patients undergoing epithelium-off CXL who completed 10-year follow-up. The surgical procedure was performed in all patients according to the Siena (Dresden modified) protocol...
January 9, 2018: Cornea
https://www.readbyqxmd.com/read/29315445/erratum-for-corneal-cross-linking-cxl-standardizing-terminology-and-protocol-nomenclature
#11
(no author information available yet)
No abstract text is available yet for this article.
January 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29315442/changes-in-corneal-biomechanical-properties-with-different-corneal-cross-linking-irradiances
#12
FangJun Bao, YaRu Zheng, Chang Liu, XiaoBo Zheng, YiPing Zhao, Yuan Wang, LinNa Li, QinMei Wang, ShiHao Chen, Ahmed Elsheikh
PURPOSE: To evaluate whether different corneal cross-linking (CXL) irradiances, all with the same delivered total energy, achieve similar increases in corneal material stiffness. METHODS: One hundred twenty-six healthy white Japanese rabbits were randomly divided into seven groups (n = 18 each). After removing the epithelium of the left corneas, six groups were exposed to riboflavin (0.22% concentration by volume) and ultraviolet-A (370 nm) at different CXL irradiations, all with the same total dose (5...
January 1, 2018: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29308960/collagen-cross-linking-in-the-management-of-microbial-keratitis
#13
Chiara Bonzano, Antonio Di Zazzo, Stefano Barabino, Giulia Coco, Carlo Enrico Traverso
Increasing resistance to antimicrobial agents has contributed to an elevated risk of complications of infectious keratitis. Corneal collagen cross-linking (CXL) has been widely adopted for the management of keratoconus and post-refractive surgery corneal ectasia. It has recently been introduced as an option for treating keratitis due to multidrug resistant organisms. The purpose of this review is to discuss the rationale, safety, and evidence for CXL in infectious keratitis and its possible effect on ocular surface inflammation...
January 8, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29300266/visibility-and-depth-of-the-stromal-demarcation-line-after-corneal-collagen-cross-linking-using-anterior-segment-optical-coherence-tomography-comparison-between-isoosmolar-and-hypoosmolar-riboflavin
#14
Louis Lhuillier, Cedric Ghetemme, Mathilde Boiché, Rekia Yahia, Naila Houmad, Mohamed Zaidi, Christophe Goetz, Jean Marc Perone
PURPOSE: To evaluate and compare visibility and depth of the stromal demarcation line (DL) created after corneal collagen cross-linking (CXL) using anterior segment optical coherence tomography (AS-OCT) between 2 groups: CXL with isoosmolar and hypoosmolar riboflavin. METHODS: In this retrospective study performed at Metz-Thionville Regional Hospital, consecutive patients with progressive keratoconus underwent CXL using an accelerated protocol (10 min, 9 mW/cm ultraviolet-A)...
January 3, 2018: Cornea
https://www.readbyqxmd.com/read/29300262/accelerated-corneal-cross-linking-with-photoactivated-chromophore-for-moderate-therapy-resistant-infectious-keratitis
#15
Boris Knyazer, Yonit Krakauer, Yael Baumfeld, Tova Lifshitz, Sabine Kling, Farhad Hafezi
PURPOSE: To evaluate the effect of accelerated corneal cross-linking with photoactivated chromophore (PACK-CXL) as additional treatment for therapy-resistant infectious keratitis. METHODS: In this interventional cohort study, 20 patients (11 men and 9 women), aged 65.5 (interquartile range = 21.5-78.5) years, who were hospitalized for moderate-sized therapy-resistant bacterial corneal ulcers (11/20 microbiologically confirmed) were treated with hypoosmolar 0.1% riboflavin solution and Ultraviolet A (UVA) irradiation for 3 minutes at 30 mW/cm (5...
January 3, 2018: Cornea
https://www.readbyqxmd.com/read/29296550/comparison-of-transepithelial-corneal-crosslinking-with-epithelium-off-crosslinking-epithelium-off-cxl-in-adult-pakistani-population-with-progressive-keratoconus
#16
Bushra Akbar, Rana Intisar-Ul-Haq, Mazhar Ishaq, Ayesha Fawad, Sabahat Arzoo, Kashif Siddique
PURPOSE: The purpose of this study is to compare the safety and efficacy of transepithelial corneal crosslinking (CXL) with epithelium-off crosslinking (epithelium-off CXL) in the treatment of progressive keratoconus in adult Pakistani population. MATERIALS AND METHODS: Sixty-four eyes of 64 consecutive patients of progressive keratoconus were included in this quasi-experimental study. Thirty-two eyes received transepithelial CXL with Peschke TE (0.25% riboflavin (Vitamin B2), 1...
October 2017: Taiwan Journal of Ophthalmology
https://www.readbyqxmd.com/read/29284455/visual-rehabilitation-in-moderate-keratoconus-combined-corneal-wavefront-guided-transepithelial-photorefractive-keratectomy-and-high-fluence-accelerated-corneal-collagen-cross-linking-after-intracorneal-ring-segment-implantation
#17
Hun Lee, David Sung Yong Kang, Byoung Jin Ha, Jin Young Choi, Eung Kweon Kim, Kyoung Yul Seo, Tae-Im Kim
BACKGROUND: To investigate the effects of combined corneal wavefront-guided transepithelial photorefractive keratectomy (tPRK) and accelerated corneal collagen cross-linking (CXL) after intracorneal ring segment (ICRS) implantation in patients with moderate keratoconus. METHODS: Medical records of 23 eyes of 23 patients undergoing combined tPRK and CXL after ICRS implantation were retrospectively analyzed. Uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), manifest refraction spherical equivalent (MRSE), corneal indices based on Scheimpflug tomography, higher-order aberrations (HOAs), and corneal biomechanical properties were evaluated before and after ICRS implantation, and at 1, 3, and 6 months after combined tPRK and CXL...
December 29, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29283924/comparison-of-changes-in-central-corneal-thickness-during-corneal-collagen-cross-linking-using-isotonic-riboflavin-solutions-with-and-without-dextran-in-the-treatment-of-progressive-keratoconus
#18
Naima Zaheer, Wajid Ali Khan, Shama Khan, M Abdul Moqeet Khan
PURPOSE: To compare intraoperative changes in central corneal thickness (CCT) during corneal cross-linking, using 2 different isotonic riboflavin solutions either with dextran or with hydroxy propyl methylcellulose, in the treatment of progressive keratoconus. METHODS: In this retrospective study, we analyzed records of corneal thickness measurements, taken during various steps of cross-linking. Cross-linking was performed using either isotonic riboflavin with dextran (group A) or isotonic riboflavin with hydroxy propyl methylcellulose (without dextran) (group B)...
December 27, 2017: Cornea
https://www.readbyqxmd.com/read/29282020/efficacy-and-safety-of-transepithelial-corneal-collagen-crosslinking-surgery-versus-standard-corneal-collagen-crosslinking-surgery-for-keratoconus-a-meta-analysis-of-randomized-controlled-trials
#19
Wenwei Li, Bin Wang
BACKGROUND: The aim of this study was to evaluate the efficacy and safety of transepithelial corneal collagen crosslinking (transepithelial CXL) versus standard corneal collagen crosslinking (epithelium-off CXL) on keratoconus. METHODS: Eligible studies were identified by systematically searching PubMed, the Cochrane Library and Embase. Topographic parameters, corrected distant visual acuity (CDVA), uncorrected distant visual acuity (UDVA), and corneal thickness (CT) were assessed by the pooled weighted mean differences (WMDs) of the change from baseline to the end of follow up...
December 28, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29279651/mesopic-quality-of-vision-after-accelerated-18-mw-cm2-corneal-cross-linking-mid-term-results
#20
Hassan Hashemi, Mohammad Miraftab, Soheila Asgari
PURPOSE: The purpose of the study was to determine 2-year changes in mesopic higher-order aberrations (HOAs) and contrast sensitivity (CS) after accelerated corneal cross-linking (CXL) in keratoconus patients. MATERIALS AND METHODS: In this before-after interventional case series, patients with progressive keratoconus were subjected to accelerated CXL (18 mW/cm2, 5 min). Patients were examined with the OPD-Scan III and CVS-1000 grating charts under mesopic conditions at baseline and at 12 and 24 months after CXL...
July 2017: Middle East African Journal of Ophthalmology
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