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neurotrophic keratitis

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https://www.readbyqxmd.com/read/29451275/cenegermin-for-the-treatment-of-neurotrophic-keratitis
#1
M Sacchetti, A Bruscolini, A Lambiase
The trigeminal nerve provides corneal sensitivity and trophic supply to corneal tissues. The impairment of corneal innervation leads to development of neurotrophic keratitis (NK). NK is a rare, degenerative corneal disease characterized by corneal hypo/anesthesia and development of nonhealing corneal epithelial defects and ulcers. NK is a challenging condition with high medical need due to the lack of approved treatments that can restore corneal integrity. Current treatment of NK aims at stimulating corneal healing and preventing disease progression...
November 2017: Drugs of Today
https://www.readbyqxmd.com/read/29426444/eyeprintpro-therapeutic-scleral-contact-lens-indications-and-outcomes
#2
Michael T B Nguyen, Vishakha Thakrar, Clara C Chan
OBJECTIVE: To describe indications and outcomes of patients fitted with the EyePrintPRO therapeutic scleral lens. METHODS: A database search of patients fitted with the EyePrintPRO from 2014 to 2016. Fourteen eyes of 10 patients were reviewed retrospectively. Patient demographics, medical and ocular history, indications for fitting, duration of wear, symptoms, and best-corrected visual acuity (BCVA) were analyzed. RESULTS: Mean age at lens fitting was 49 years (range, 21-67 years)...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29426435/sural-nerve-graft-for-neurotrophic-keratitis-early-results
#3
Ezekiel Weis, Avi Rubinov, Ahmed Rustom Al-Ghoul, Farrah Meng-Kay Yau
OBJECTIVE: To report our center's experience in treating neurotrophic keratitis (NK) through corneal neurotization using nerve transfers and sural nerve grafts in the adult population. DESIGN: Prospective observational case series, single center study. METHODS: Six consecutive patients (5 males and 1 female) with severe NK were evaluated. All patients had complete corneal anaesthesia in the neurotrophic eye. Three patients had unstable epithelial disease with recurrent breakdowns despite maximal medical and standard surgical management; three presented with dense scarring of their cornea...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29408907/five-year-outcomes-of-boston-type-i-keratoprosthesis-as-primary-versus-secondary-penetrating-corneal-procedure-in-a-matched-case-control-study
#4
Kai B Kang, Faris I Karas, Ruju Rai, Joelle A Hallak, Joann J Kang, Jose de la Cruz, Maria S Cortina
Despite improved retention and reduced complication rates paving the way for the current expansion of applications and surge in prevalence for the Boston type I Keratoprosthesis (KPro), the most frequent indication for its implantation today remains prior graft failure. The purpose of this study is to evaluate the long-term outcomes of primary KPro and compare to secondary implantation in a matched cohort study. This study included patients who underwent KPro implantation in a single center by two surgeons between July 2008 and October 2014...
2018: PloS One
https://www.readbyqxmd.com/read/29305292/corneal-nerve-regeneration-after-herpes-simplex-keratitis-an-in-vivo-confocal-microscopy-study
#5
Hamid-Reza Moein, Ahmad Kheirkhah, Rodrigo T Muller, Andrea C Cruzat, Deborah Pavan-Langston, Pedram Hamrah
PURPOSE: To evaluate the long-term alterations in corneal nerves in patients with herpes simplex virus (HSV) keratitis using in vivo confocal microscopy (IVCM). DESIGN: Prospective longitudinal, cross sectional. METHODS: This study included 16 patients with history of HSV keratitis and 15 age-matched normal controls. Slit-scanning IVCM was performed in all subjects at baseline and then after a mean follow-up of 37.3 ± 1.7 months in the patient group...
January 2, 2018: Ocular Surface
https://www.readbyqxmd.com/read/29165410/-surgical-treatment-of-purulent-corneal-ulcers-in-eyes-with-neurotrophic-keratitis-and-paralytic-lagophthalmos
#6
Evg A Kasparova, O I Sobkova, E A Kasparova, A A Fedorov, A A Kasparov
AIM: to develop a surgical approach to the treatment of purulent corneal ulcer in eyes with neurotrophic keratitis with lagophthalmos after auditory neuroma removal or stroke. MATERIAL AND METHODS: A total of 12 patients (13 eyes) have been managed. All received combined surgery that included simultaneous keratoplasty, autoconjunctivoplasty, and permanent partial tarsorrhaphy. RESULTS: Ocular integrity was preserved in all cases, and also vision - in half of them...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/29107724/prosthetic-replacement-of-the-ocular-surface-ecosystem-prose-treatment-of-ocular-surface-disease-following-skull-base-tumor-resection
#7
Carolyn E Kloek, Karen W Jeng-Miller, Deborah S Jacobs, Ian F Dunn
Prosthetic Replacement of the Ocular Surface Ecosystem (PROSE) treatment is an effective, non-surgical therapeutic option for patients with ocular surface disease related to cranial nerve deficits secondary to skull base tumor resection. This case series describes the impact of PROSE treatment in patients with symptomatic exposure keratopathy or neurotrophic keratitis after skull base tumor surgery. All patients improved symptomatically and functionally with PROSE treatment, and have had sustained improvement for as long as 3 years...
October 28, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28966630/neurotrophic-factors-and-corneal-nerve-regeneration
#8
REVIEW
Marta Sacchetti, Alessandro Lambiase
The cornea has unique features that make it a useful model for regenerative medicine studies. It is an avascular, transparent, densely innervated tissue and any pathological changes can be easily detected by slit lamp examination. Corneal sensitivity is provided by the ophthalmic branch of the trigeminal nerve that elicits protective reflexes such as blinking and tearing and exerts trophic support by releasing neuromediators and growth factors. Corneal nerves are easily evaluated for both function and morphology using standard instruments such as corneal esthesiometer and in vivo confocal microscope...
August 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28911993/ocular-manifestations-of-familial-transthyretin-amyloidosis
#9
Margaret M Reynolds, Kevin K Veverka, Morie A Gertz, Angela Dispenzieri, Steven R Zeldenrust, Nelson Leung, Jose S Pulido
PURPOSE: Among patients with familial amyloidosis, mutation in the transthyretin (TTR) protein is the most common type. Patients with TTR amyloidosis have been noted to have ocular, especially vitreous, involvement. In this report, an analysis of the types and frequency of ocular manifestations in TTR amyloidosis is presented. DESIGN: Observational case series. METHODS: Two hundred and sixty-three patients who presented to Mayo Clinic with TTR amyloidosis between January 1, 1970, and November 1, 2014, consented to be included in the Mayo Clinic amyloidosis database maintained by the Department of Hematology...
November 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28903153/colony-stimulating-factor-1-receptor-expressing-cells-infiltrating-the-cornea-control-corneal-nerve-degeneration-in-response-to-hsv-1-infection
#10
Ana J Chucair-Elliott, Hem R Gurung, Meghan M Carr, Daniel J J Carr
Purpose: Herpes simplex virus type-1 (HSV-1) is a leading cause of neurotrophic keratitis, characterized by decreased or absent corneal sensation due to damage to the sensory corneal innervation. We previously reported the elicited immune response to infection contributes to the mechanism of corneal nerve regression/damage during acute HSV-1 infection. Our aim is to further establish the involvement of infiltrated macrophages in the mechanism of nerve loss upon infection. Methods: Macrophage Fas-Induced Apoptosis (MAFIA) transgenic C57BL/6 mice were systemically treated with AP20187 dimerizer or vehicle (VEH), and their corneas, lymph nodes, and blood were assessed for CD45+CD11b+GFP+ cell depletion by flow cytometry (FC)...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28620707/treatment-of-patients-with-neurotrophic-keratitis-stages-2-and-3-with-plasma-rich-in-growth-factors-prgf-endoret-eye-drops
#11
Ronald Mauricio Sanchez-Avila, Jesus Merayo-Lloves, Ana Cristina Riestra, Luis Fernandez-Vega Cueto, Eduardo Anitua, Leire Begoña, Francisco Muruzabal, Gorka Orive
PURPOSE: To provide preliminary data about efficacy and safety of plasma rich in growth factors (PRGF) eye-drops in neurotrophic keratitis (NK) and to analyze the possible influence of certain variables on treatment outcomes. METHODS: This retrospective study included patients with stages 2-3 of NK treated with PRGF eye-drops. Primary endpoint was the resolution time of corneal ulcer defect. Outcome measures including percentage of ulcer closure at 4 weeks, Ocular Surface Disease Index (OSDI), Best-Corrected Visual Acuity (BCVA) and Visual Analogue Scale (VAS) were also evaluated before and after treatment with PRGF...
June 15, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28538612/scleral-contact-lenses-in-an-academic-oculoplastics-clinic-epidemiology-and-emerging-considerations
#12
Harinder S Chahal, Marcela Estrada, Christine W Sindt, Jacob A Boehme, Mark A Greiner, Jeffrey A Nerad, Keith D Carter, Richard C Allen, Erin M Shriver
PURPOSE: To describe the role and efficacy of scleral contact lenses (SCLs) in the treatment of progressive keratopathy in patients who have undergone periocular surgical procedures, to investigate the financial impact of these surgical interventions, and to demonstrate the role of oculoplastic surgery in improving scleral contact lens fit. METHODS: A retrospective medical record review was performed to identify patients who both received SCLs and were examined by the oculoplastics service at the University of Iowa between January 1990 and December 2015...
May 22, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28115476/long-term-consequences-of-topical-dexamethasone-treatment-during-acute-corneal-hsv-1-infection-on-the-immune-system
#13
Ana J Chucair-Elliott, Meghan M Carr, Daniel J J Carr
Herpes simplex virus type 1 (HSV-1) is a leading cause of neurotrophic keratitis (NTK). NTK is characterized by decreased corneal sensation from damage to the corneal sensory fibers. We have reported on the regression of corneal nerves and their function during acute HSV-1 infection. That nerve loss is followed by an aberrant process of nerve regeneration during the latent phase of infection that lacks functional recovery. We recently showed the elicited immune response in the infected cornea, and not viral replication itself, is part of the mechanism responsible for the nerve degeneration process after infection...
May 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/27771327/in%C3%A2-vivo-confocal-microscopy-of-corneal-nerves-in-health-and-disease
#14
REVIEW
Andrea Cruzat, Yureeda Qazi, Pedram Hamrah
In vivo confocal microscopy (IVCM) is becoming an indispensable tool for studying corneal physiology and disease. Enabling the dissection of corneal architecture at a cellular level, this technique offers fast and noninvasive in vivo imaging of the cornea with images comparable to those of ex vivo histochemical techniques. Corneal nerves bear substantial relevance to clinicians and scientists alike, given their pivotal roles in regulation of corneal sensation, maintenance of epithelial integrity, as well as proliferation and promotion of wound healing...
January 2017: Ocular Surface
https://www.readbyqxmd.com/read/27683068/understanding-the-pathogenesis-of-neurotrophic-keratitis-the-role-of-corneal-nerves
#15
REVIEW
Leonardo Mastropasqua, Giacomina Massaro-Giordano, Mario Nubile, Marta Sacchetti
Neurotrophic keratitis (NK) is a rare degenerative disease of the cornea caused by trigeminal nerve damage, which leads to loss of corneal sensitivity, corneal epithelium breakdown, and poor healing. Though extremely uncommon, NK is increasingly recognized for its characteristics as a distinct and well-defined clinical entity rather than a rare complication of various diseases that can disrupt trigeminal innervation. Indeed, the defining feature of NK is loss of corneal sensitivity, and its clinical findings do not correlate with the wide range of systemic or ocular conditions that underlie trigeminal nerve damage...
April 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27617877/bilateral-alterations-in-corneal-nerves-dendritic-cells-and-tear-cytokine-levels-in-ocular-surface-disease
#16
REVIEW
Takefumi Yamaguchi, Pedram Hamrah, Jun Shimazaki
This review summarizes the recent literature regarding corneal imaging in human subjects using in vivo confocal microscopy. It also covers the recent literature on corneal immune cells, nerves, and tear cytokine levels in ocular surface diseases as well as corneal immune privilege. The significance of interactions between corneal immune cells and nerves in health, neurotrophic keratopathy, and infectious keratitis is discussed. Furthermore, bilateral alterations of immune cells and nerves in clinically unilateral corneal diseases and the link to changes of tear cytokines or neuropeptide levels in contralateral eyes are described...
November 2016: Cornea
https://www.readbyqxmd.com/read/27497323/il-6-contributes-to-corneal-nerve-degeneration-after-herpes-simplex-virus-type-i-infection
#17
Ana J Chucair-Elliott, Jeremy Jinkins, Meghan M Carr, Daniel J J Carr
Herpes simplex virus type 1 (HSV-1) is a leading cause of neurotrophic keratitis characterized by decreased corneal sensation because of damage to the corneal sensory fibers. We and others have reported regression of corneal nerves during acute HSV-1 infection. To determine whether denervation is caused directly by the virus or indirectly by the elicited immune response, mice were infected with HSV-1 and topically treated with dexamethasone (DEX) or control eye drops. Corneal sensitivity was measured using a Cochet-Bonnet esthesiometer and nerve network structure via immunohistochemistry...
October 2016: American Journal of Pathology
https://www.readbyqxmd.com/read/27362878/urgent-therapeutic-grafting-of-platelet-rich-fibrin-membrane-in-descemetocele
#18
Mehmet Erol Can, Gamze Dereli Can, Nurullah Cagil, Hasan Basri Cakmak, Nuran Sungu
PURPOSE: To report the clinical and histopathological results of a novel autologous scaffold grafting, platelet-rich fibrin (PRF) membrane, in cases with descemetocele. METHODS: Three patients with severe corneal stromal melting and central descemetocele caused by neurotrophic keratopathy and infective keratitis underwent PRF membrane grafting on the central cornea for the prevention of imminent corneal perforation. After a quiescent 3-month period, penetrating keratoplasty and cataract extraction were performed for visual rehabilitation in 1 patient and host corneal tissue was examined histopathologically...
September 2016: Cornea
https://www.readbyqxmd.com/read/27078007/recessive-mutation-in-a-nuclear-encoded-mitochondrial-trna-synthetase-associated-with-infantile-cataract-congenital-neurotrophic-keratitis-and-orbital-myopathy
#19
Samir Jabbour, Mona Harissi-Dagher
PURPOSE: To report the ocular findings of a rare case of mutation in the nuclear-encoded mitochondrial aminoacyl-tRNA synthetase IARS2. METHODS: A 33-year-old woman known for infantile cataracts, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, and skeletal dysplasia was referred to us for multiple failed corneal grafts and severe eye dryness. RESULTS: The patient was found to have neurotrophic keratitis and corneal opacification...
June 2016: Cornea
https://www.readbyqxmd.com/read/27070108/a-central-role-for-sympathetic-nerves-in-herpes-stromal-keratitis-in-mice
#20
Hongmin Yun, Kira L Lathrop, Robert L Hendricks
PURPOSE: Herpes simplex virus type 1 (HSV-1) is a neurotrophic virus that can cause herpes stromal keratitis (HSK), a severe corneal inflammation that can lead to corneal scarring and blindness. This study identified neurologic changes that occur in HSV-1-infected corneas and related them to HSV-1-induced immunopathology. METHODS: Corneas of BALB/c and C57BL/6 mice were infected with HSV-1 strains that induce HSK. Changes in sensory nerves were identified by immunofluorescence staining of sensory and sympathetic nerves for substance P (SP) and tyrosine hydroxylase (TH), respectively, and confocal microscopic examination...
April 2016: Investigative Ophthalmology & Visual Science
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