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corneal haze

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https://www.readbyqxmd.com/read/28038895/corneal-haze-phenotype-in-aldh3a1-null-mice-in-vivo-confocal-microscopy-and-tissue-imaging-mass-spectrometry
#1
Ying Chen, James V Jester, David M Anderson, Satori A Marchitti, Kevin L Schey, David C Thompson, Vasilis Vasiliou
ALDH3A1 is a corneal crystallin that protects ocular tissues from ultraviolet radiation through catalytic and non-catalytic functions. In addition, ALDH3A1 plays a functional role in corneal epithelial homeostasis by simultaneously modulating proliferation and differentiation. We have previously shown that Aldh3a1 knockout mice in a C57B6/129sV mixed genetic background develop lens cataracts. In the current study, we evaluated the corneal phenotype of Aldh3a1 knockout mice bred into a C57B/6J congenic background (KO)...
December 27, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28003777/correlation-between-practice-location-as-a-surrogate-for-uv-exposure-and-practice-patterns-to-prevent-corneal-haze-after-photorefractive-keratectomy-prk
#2
Eman M Al-Sharif, Donald U Stone
BACKGROUND: PRK is a refractive surgery that reshapes the corneal surface by excimer laser photoablation to correct refractive errors. The effect of increased ultraviolet (UV) exposure on promoting post-PRK corneal haze has been reported in the literature; however, information is lacking regarding the effect of ambient UV exposure on physician practice patterns. The aim of this study was to evaluate the effect of ophthalmologists' practice location on their reported practice patterns to prevent post-PRK corneal haze...
October 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/27956283/single-step-transepithelial-photorefractive-keratectomy-in-myopia-and-astigmatism-18-month-follow-up
#3
Soheil Adib-Moghaddam, Saeed Soleyman-Jahi, Bahram Salmanian, Amir-Houshang Omidvari, Fatemeh Adili-Aghdam, Farsad Noorizadeh, Medi Eslani
PURPOSE: To evaluate the long-term quantitative and qualitative optical outcomes of 1-step transepithelial photorefractive keratectomy (PRK) to correct myopia and astigmatism. SETTING: Bina Eye Hospital, Tehran, Iran. DESIGN: Prospective interventional case series. METHODS: Eyes with myopia with or without astigmatism were evaluated. One-step transepithelial PRK was performed with an aberration-free aspheric optimized profile and the Amaris 500 laser...
November 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27941045/single-step-transepithelial-versus-alcohol-assisted-photorefractive-keratectomy-in-the-treatment-of-high-myopia-a-comparative-evaluation-over-12%C3%A2-months
#4
Rafic Antonios, Maamoun Abdul Fattah, Samuel Arba Mosquera, Bachir H Abiad, Karim Sleiman, Shady T Awwad
BACKGROUND/AIMS: To evaluate refractive outcomes of single-step transepithelial photorefractive keratectomy (TransPRK) versus alcohol-assisted PRK (EtOH-PRK) for the correction of high myopia. METHODS: This was a retrospective non-randomised comparative study conducted at the American University of Beirut Medical Center, Beirut, Lebanon. Eyes with myopia (spherical equivalent (SE) larger than -6.00 D) that had undergone EtOH-PRK treatment combined with mitomycin C and TransPRK (SE: -7...
December 9, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27930708/three-dimensional-construction-of-a-rabbit-anterior-corneal-replacement-for-lamellar-keratoplasty
#5
Kunpeng Pang, Liqun Du, Kai Zhang, Chenyang Dai, Chengqun Ju, Jing Zhu, Xinyi Wu
The aim of this study was to construct a rabbit anterior corneal replacement for transplantation using acellular porcine corneal matrix (APCM) and rabbit epithelial or stromal cells. APCM was prepared from fresh porcine cornea treated with 0.5% (wt./vol.) sodium dodecyl sulfate (SDS) solution. The expanded stromal cells were first injected into APCM parallel to its surface and were cultured in a shaking culture system for 7 days to obtain the stromal construct. Next, corneal epithelial cells were cultured on the stromal construct surface for another 7 days to obtain rabbit anterior corneal lamella...
2016: PloS One
https://www.readbyqxmd.com/read/27893524/visual-outcomes-after-smile-lasek-and-lasek-combined-with-corneal-collagen-cross-linking-for-high-myopic-correction
#6
Sangyoon Hyun, Seongjun Lee, Jae-Hyung Kim
PURPOSE: To compare the visual and refractive outcomes of small-incision lenticule extraction (SMILE), laser-assisted subepithelial keratomileusis (LASEK), and LASEK combined with corneal collagen cross-linking (LASEK-CXL) surgery for high-degree myopia. METHODS: Medical records of patients with spherical equivalent (SE) greater than -6.00 diopters (D) treated with SMILE, LASEK, and LASEK-CXL were reviewed. Uncorrected distance visual acuity (UCVA), SE, and corneal haze were followed up in the 3 groups for 6 months...
November 23, 2016: Cornea
https://www.readbyqxmd.com/read/27890620/drug-induced-corneal-epithelial-changes
#7
REVIEW
Michael B Raizman, Pedram Hamrah, Edward J Holland, Terry Kim, Francis S Mah, Christopher J Rapuano, Roger G Ulrich
Drugs across many pharmacologic classes induce corneal epithelial changes. Many of these drugs have cationic amphiphilic structures, with a hydrophobic ring and hydrophilic cationic amine side chain that allow them to cross cell membranes. These drugs lead to intracellular phospholipid accumulation, often manifested in the cornea by vortex keratopathy, with no effect on visual acuity and few ocular symptoms. Other drugs, notably antineoplastic agents, produce a fine diffuse corneal haze, sometimes accompanied by decreased vision that can be dose limiting...
November 24, 2016: Survey of Ophthalmology
https://www.readbyqxmd.com/read/27829784/irbp-deficiency-permits-precocious-ocular-development-and-myopia
#8
Shanu Markand, Natecia L Baskin, Ranjay Chakraborty, Erica Landis, Sara A Wetzstein, Kevin J Donaldson, Priyanka Priyadarshani, Shannon E Alderson, Curran S Sidhu, Jeffrey H Boatright, P Michael Iuvone, Machelle T Pardue, John M Nickerson
PURPOSE: Interphotoreceptor retinoid-binding protein (IRBP) is abundant in the subretinal space and binds retinoids and lipophilic molecules. The expression of IRBP begins precociously early in mouse eye development. IRBP-deficient (KO) mice show less cell death in the inner retinal layers of the retina before eyelid opening compared to wild-type C57BL/6J (WT) controls and eventually develop profound myopia. Thus, IRBP may play a role in eye development before visually-driven phenomena...
2016: Molecular Vision
https://www.readbyqxmd.com/read/27824385/corneal-scheimpflug-densitometry-following-photorefractive-keratectomy-in-myopic-eyes
#9
Marie Boulze-Pankert, Romuald Dariel, Louis Hoffart
PURPOSE: To evaluate the modification of corneal optical densitometry following photorefractive keratectomy (PRK) using Scheimpflug topography. METHODS: Corneal densitometry (0 to 100 grayscale units [GSU]), pachymetry, and keratometry were evaluated using a rotating Scheimpflug camera (Pentacam HR; Oculus Optikgeräte, GmbH, Wetzlar, Germany) at baseline and 1 and 3 months following PRK in myopic patients. Subjective refraction, uncorrected distance visual acuity, corrected distance visual acuity, and corneal haze (0 to 4 on common subjective scale) were evaluated preoperatively at baseline, 1 month, and 3 months...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27732879/temporal-and-spatial-analysis-of-stromal-cell-and-extracellular-matrix-patterning-following-lamellar-keratectomy
#10
Pouriska B Kivanany, Kyle C Grose, W Matthew Petroll
Extracellular matrix (ECM) supplies both physical and chemical signals to keratocytes which can impact their differentiation to fibroblasts and/or myofibroblasts. It also provides a substrate through which they migrate during wound repair. We have previously shown that following transcorneal freeze injury (FI), migrating corneal fibroblasts align parallel to the stromal lamellae during wound repopulation. In this study, we compare cell and ECM patterning both within and on top of the stroma at different time points following lamellar keratectomy (LK) in the rabbit...
December 2016: Experimental Eye Research
https://www.readbyqxmd.com/read/27583797/comparison-of-the-demarcation-line-on-asoct-after-simultaneous-lasik-and-different-protocols-of-accelerated-collagen-crosslinking-a-bilateral-eye-randomized-study
#11
Alex L K Ng, Peter S K Kwok, Ricky T K Wu, Vishal Jhanji, Victor C P Woo, Tommy C Y Chan
PURPOSE: To compare the demarcation line depth after 2 different protocols of simultaneous laser in situ keratomileusis and collagen crosslinking (LASIK Xtra). METHODS: Twenty-three patients receiving bilateral LASIK Xtra were included in this comparative interventional study. The corneal stroma was soaked with 0.22% riboflavin for 90 seconds before flap repositioning. One eye was then randomized to receive either 18 mW/cm of ultraviolet A irradiation for 120 seconds or for 180 seconds, whereas the fellow eye received the other irradiation duration...
January 2017: Cornea
https://www.readbyqxmd.com/read/27516741/ophthalmic-combination-of-surr9-c84a-and-trichostatin-a-targeting-molecular-pathogenesis-of-alkali-burn
#12
Kislay Roy, Bhasker Sriramoju, Rupinder K Kanwar, Jagat R Kanwar
BACKGROUND: Alkali burn is a frequently occurring ocular injury that resembles ocular inflammation caused by eye allergies, infection, and refractive surgeries. METHODS: We investigated the synergistic regenerative potential of dominant negative survivin mutant (SurR9-C84A) and histone deacetylase (HDAC) inhibitor trichostatin-A (TSA) against alkali burn and corneal haze using human keratocytes and rabbit alkali burn model (Female New Zealand white rabbits). RESULTS: Combination of SurR9-C84A and TSA suppressed levels of transforming growth factor (TGF)-β, alpha smooth-muscle actin (α-SMA), fibronectin and HDAC1, leading to apoptosis in myofibroblast cells and, showed the potential to clear the corneal haze...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27492105/natural-history-of-corneal-haze-after-corneal-collagen-crosslinking-in-keratoconus-using-scheimpflug-analysis
#13
Bia Z Kim, Charlotte A Jordan, Charles N J McGhee, Dipika V Patel
PURPOSE: To analyze corneal haze after corneal collagen crosslinking (CXL) for progressive keratoconus using Scheimpflug densitometry. SETTING: Auckland District Health Board, Auckland, New Zealand. DESIGN: Prospective randomized controlled study. METHODS: Both eyes of all patients were examined preoperatively and 1, 3, 6, and 12 months postoperatively. One eye of each patient was treated with corneal CXL, with the contralateral eye serving as the control...
July 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27455826/keratoconus-in-patients-with-macular-stromal-dystrophy
#14
Panida Kosrirukvongs, Panotsom Ngowyutagon, Wipawee Booranapong
OBJECTIVE: To show the association between keratoconus and macular dystrophy. MATERIAL AND METHOD: All patients with macular dystrophy and associated clinical findings leading to a diagnosis of keratoconus by corneal topography were retrospectively reviewed during a 10-year period. Uncorrected and best-corrected visual acuity, automated refraction, manifest refraction, corneal thickness, and corneal curvature by corneal topography were evaluated RESULTS: Three patients with macular dystrophy exhibiting decreased vision, multifocal white dense deposits, and haze surrounding the deposits in the corneal stroma were evaluated...
January 2016: Journal of the Medical Association of Thailand, Chotmaihet Thangphaet
https://www.readbyqxmd.com/read/27413491/efficacy-of-wavefront-guided-photorefractive-keratectomy-with-iris-registration-for-management-of-moderate-to-high-astigmatism-by-advanced-personalized-treatment-nomogram
#15
Mehrdad Mohammadpour, Hassan Hashemi, Mahmoud Jabbarvand, Kamran Rahmatnejad, Fatemeh Alsadat Sabet
PURPOSE: To evaluate the efficacy of photorefractive keratectomy (PRK) using the advanced personalized treatment (APT) nomogram for correction of moderate to high astigmatism. METHODS: This prospective interventional case series included 60 consecutive eyes of 30 patients undergoing wavefront-guided PRK (Zyoptix 217 Z100 excimer laser, Bausch & Lomb, Munich, Germany) using the APT nomogram and iris registration for myopic astigmatism. Mitomycin-C was applied intraoperatively in all eyes...
April 2016: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/27392604/polymeric-nanocapsules-a-potential-new-therapy-for-corneal-wound-healing
#16
Sonia Reimondez-Troitiño, Ignacio Alcalde, Noemi Csaba, Almudena Íñigo-Portugués, María de la Fuente, Federico Bech, Ana C Riestra, Jesús Merayo-Lloves, María J Alonso
Corneal injuries are one of the most frequently observed ocular diseases, leading to permanent damage and impaired vision if they are not treated properly. In this sense, adequate wound healing after injury is critical for keeping the integrity and structure of the cornea. The goal of this work was to assess the potential of polymeric nanocapsules, either unloaded or loaded with cyclosporine A or vitamin A, alone or in combination with mitomycin C, for the treatment of corneal injuries induced by photorefractive keratectomy surgery...
July 8, 2016: Drug Delivery and Translational Research
https://www.readbyqxmd.com/read/27367136/corneal-haze-as-prognostic-indicator-of-intraocular-pressure-in-primary-congenital-glaucoma
#17
Xintong Li, Lekha Mukkamala, Catherine A Origlieri, Bart K Holland, Robert D Fechtner, Albert S Khouri
PURPOSE: To perform a longitudinal analysis on the association of corneal haze with intraocular pressure (IOP) in eyes with primary congenital glaucoma (PCG) over 3 years. PATIENTS AND METHODS: Charts of all patients diagnosed with glaucoma of childhood from 2002 to 2012 at our institution were retrospectively reviewed. Inclusion criteria were age 18 years and below, plus elevated IOP or characteristic clinical signs. Exclusion criteria were eyes with secondary glaucoma or corneal haze not from PCG and patients with prior ocular surgery or incomplete follow-up...
October 2016: Journal of Glaucoma
https://www.readbyqxmd.com/read/27347060/keratopathy-due-to-ophthalmic-drug-abuse-with-corneal-melting-and-perforation-presenting-as-mooren-like-ulcer-a-case-report
#18
Hui Wu, Yuan Hu, Xiao-Ru Shi, Feihong Xu, Chun-Ying Jiang, Rong Huang, Hui Jia
The present report describes the clinical course and treatment of a Mooren-like ulcer associated with abuse of topical anesthetics and dexamethasone. A 38-year-old male physician treated himself with lidocaine, tetracaine and dexamethasone (DEX) eye drops for severe pain and decline of vision in both eyes. After six months of treatment, his right cornea exhibited annular melting with full-thickness stromal infiltration at the limbus and central corneal haze. His left cornea was completely melted and exhibited iris prolapse...
July 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27315291/-crosslinking-in-keratoconus
#19
S J Lang, T Reinhard
Keratoconus leads to progressive thinning and protrusion of the cornea. Young patients exhibit the highest risk for progression. Corneal crosslinking was introduced in 1998 and is intended to prevent progression of keratoconus. Only a few prospective controlled trials have been published. Six randomised controlled trials have been published. All these trials confirmed the efficacy of crosslinking through keratometric data. In two trials, progression was reported in some patients of the treatment group. This indicates that not all patients benefit from corneal crosslinking...
June 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27315290/the-oskar-fehr-lecture
#20
J S Weiss
PURPOSE: The first Oskar Fehr lecture is given in honour of Professor Fehr, a well respected ophthalmologist, who was head physician of the Department of Eye Diseases at the Rudolf Virchow Hospital from 1918. He practiced there until 1938, when he was forbidden to enter the clinic because he was Jewish and subject to the anti-Semitic laws that were instituted after the rise of the Nazi party. Dr. Fehr escaped to Great Britain, where he practiced ophthalmology into his eighties. He was the first to distinguish between granular corneal dystrophy, lattice corneal dystrophy and macular corneal dystrophy...
June 2016: Klinische Monatsblätter Für Augenheilkunde
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