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2.
Medicine (Baltimore) ; 103(14): e37663, 2024 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-38579080

RESUMEN

BACKGROUND: To report the nursing experience of a case of corneal contact lens wearer receiving the 2nd keratoplasty due to corneal ulcer and perforation caused by Pythium insidiosum infection. METHODS: A 30-year-old female patient had blurred vision after deep anterior lamellar keratoplasty for a right corneal ulcer. At the 5th week, the right eye appeared the symptoms, such as redness and pain. The anterior segment photography was performed on the eye, and the result showed that the epithelium was missing in the right eye lesion area, and a large number of longitudinal and transversal streaks were visible from the epithelium to the stroma, with fungus filaments to be discharged. Upon macro-genome sequencing of the corneal secretion, a P. insidiosum infection was observed. Then, the patient underwent the keratoplasty, and 3 weeks later, the corneal implant showed a tendency to dissolve, the sutures were partially loosened, and the eye was almost blind. Subsequently, the patient was admitted to our hospital and subject to the 2nd penetrating keratoplasty of the right eye (allograft). After surgery, linezolid and azithromycin injections were given through intravenous drip and local drip of the eye for anti-inflammation, and tacrolimus eye drops for antirejection. RESULTS: Postoperatively, the patient showed signs of recovery with slight corneal edema and visible pupil, leading to discharge with improved vision. The corneal implant was normal 1 week after surgery and the vision of the right eye was hand move/before eye at the 6th month of follow-up. Continuous care and removal of sutures 3 months post-surgery contributed to a successful outcome, with the patient achieving hand motion vision 6 months after the procedure. CONCLUSION: Corneal ulcer caused by P. insidiosum infection not only needs timely and effective keratoplasty intervention, but also requires perfect nursing measures.


Asunto(s)
Trasplante de Córnea , Úlcera de la Córnea , Pitiosis , Adulto , Femenino , Humanos , Lentes de Contacto , Córnea/cirugía , Trasplante de Córnea/métodos , Úlcera de la Córnea/etiología , Úlcera de la Córnea/cirugía , Queratoplastia Penetrante , Pitiosis/cirugía , Pitiosis/complicaciones , Pitiosis/diagnóstico
3.
BMC Ophthalmol ; 24(1): 131, 2024 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-38528481

RESUMEN

PURPOSE: We describe the management of a case of severe corneal melting after corneal cross-linking (CXL) treated with a staged approach using a conjunctival flap followed by deep anterior lamellar keratoplasty (DALK). METHODS: A 12-year-old male developed severe corneal melting with pending perforation after an accelerated epithelium-off CXL protocol. We initially treated the patient with a conjunctival flap to prevent perforation. Three months later, we performed DALK to restore vision. RESULTS: Conjunctival flap surgery allowed us to avoid corneal perforation and penetrating keratoplasty (PK) à chaud. Once the inflammation had resolved, we recessed the conjunctiva and performed DALK for optical purposes. Twelve months later, the graft was clear and the corrected visual acuity was 20/25 (Snellen). No complications occurred after surgery. CONCLUSIONS: Although CXL is considered a safe procedure, in rare cases it can lead to serious complications, such as corneal haze, infectious and non-infectious keratitis, stromal melting and perforation. Corneal melting and perforation are usually managed by emergency PK. Herein we suggest a staged approach involving an emergency conjunctival flap followed by DALK at a later time that allowed us to avoid PK à chaud.


Asunto(s)
Trasplante de Córnea , Úlcera de la Córnea , Queratocono , Masculino , Humanos , Niño , Queratocono/tratamiento farmacológico , Queratocono/cirugía , Trasplante de Córnea/métodos , Queratoplastia Penetrante/métodos , Úlcera de la Córnea/cirugía , Colágeno , Estudios Retrospectivos , Resultado del Tratamiento
4.
Arq Bras Oftalmol ; 87(2): e20220341, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38451687

RESUMEN

PURPOSE: To evaluate the clinical results of cryopreserved amniotic membrane transplantation as a treatment option for refractory neurotrophic corneal ulcers. METHODS: This prospective study included 11 eyes of 11 patients who underwent amniotic membrane transplantation for the treatment of refractory neurotrophic corneal ulcers at Hospital de Clínicas da Universidade Federal do Paraná, in the city of Curitiba, from May 2015 to July 2021. Patients underwent different surgical techniques in which the amniotic membrane was applied with the epithelium facing upward to promote corneal re-epithelialization. RESULTS: The median age of the patients was 60 years (range, 34-82 years), and 64% were men. The predominant etiology of corneal ulcers was herpes zoster (45% of cases). Approximately one-third of the patients (27%) were chronically using hypotensive eye drops, and more than half (54%) had previously undergone penetrating corneal transplantation. At the time of amniotic membrane transplantation, 18% of the eyes had corneal melting, 9% had corneal perforation, and the others had corneal ulceration without other associated complications (73%). The time between clinical diagnosis and surgical treatment ranged from 9 days to 2 years. The corrected visual acuity was worse than 20/400 in 90% of the patients preoperatively, with improvement in 36% after 3 months of the procedure, worsening in 18% and remaining stable in 36%. Of the patients, 81% complained of preoperative pain, and 66% of them reported total symptom relief after the surgical procedure. In one month, 54.6% of the patients presented a closure of epithelial defect, and half of the total group evolved with corneal thinning. The failure rate was 45.5% of the cases. CONCLUSION: Cryopreserved amniotic membrane transplantation can be considered a good alternative for treating refractory neurotrophic corneal ulcers, as it resulted in significant improvement in pain (66%) and complete epithelial closure (60%) in many patients at 1 month postoperatively. Notably, the high failure rate highlights the need for further studies to identify patientand ulcer-related factors that may influence the outcomes of this procedure.


Asunto(s)
Úlcera de la Córnea , Queratitis , Masculino , Humanos , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Femenino , Úlcera de la Córnea/cirugía , Úlcera , Amnios , Estudios Prospectivos , Córnea , Dolor
5.
Cornea ; 43(5): 641-643, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38377401

RESUMEN

PURPOSE: The aim of this study was to describe the outcomes of autologous Tenon patch graft in the management of Auro keratoprosthesis-related pericylindrical corneal melt. METHODS: We report 3 cases of sterile pericylindrical corneal melt in patients with Auro keratoprosthesis implantation after a mean duration of 5 years (1.5-8 years). Case 1 was a patient with severe graft-versus-host disease. Cases 2 and 3 were cases of chemical injury.All these cases of sterile pericylindrical corneal melt (4-6 mm) underwent autologous Tenon patch graft. The technique included freshening of the edges around the melt, followed by measuring the size of the defect. A Tenon graft harvested from the patient's own eye was used to seal the defect and act as a scaffold. The Tenon patch graft was spread over the melt and held in place by the application of fibrin glue and/or interrupted 10-0 nylon sutures. A bandage contact lens was then placed on the eye. RESULTS: Tenon patch graft was well taken in all patients. The mean duration of epithelial healing was 1 month. Globe integrity was well maintained with no postoperative complications at a mean follow-up duration of 12 months (6-18 months). CONCLUSIONS: Corneal melt is one of the most dreaded complications of KPro because its occurrence could threaten visual prognosis and globe integrity. Autologous Tenon patch is a simple yet innovative and effective option to steer such eyes away from potentially dreadful complications.


Asunto(s)
Órganos Artificiales , Enfermedades de la Córnea , Úlcera de la Córnea , Humanos , Córnea/cirugía , Enfermedades de la Córnea/cirugía , Prótesis e Implantes , Úlcera de la Córnea/cirugía , Complicaciones Posoperatorias/cirugía , Estudios Retrospectivos , Implantación de Prótesis
6.
Indian J Ophthalmol ; 72(Suppl 2): S308-S311, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38271428

RESUMEN

The aim of this paper is to present the surgical technique of selective Bowman's layer transplantation as well as the results of the surgery in patients with trophic corneal ulcers. The methodology of the study included three eyes from three patients with neurotrophic corneal ulcers grafting with corneal Bowman's layer. Pre- and postoperative analyses of the anterior segment of the eye were based on optical coherence tomography and slit-lamp assessment. Postoperatively a gradual corneal stroma restoration and fast corneal epithelialization were noticed. Based on our observations, the stiff and firm structure of Bowman's layer is supposed to strengthen the corneal surface and maintain its shape. It acts also as an antipathogen and antitoxin corneal barrier. Application of this acellular corneal layer transplantation to cover trophic corneal ulcers is an interesting, modern and crucial method of neurotrophic keratitis treatment.


Asunto(s)
Distrofias Hereditarias de la Córnea , Úlcera de la Córnea , Humanos , Úlcera de la Córnea/diagnóstico , Úlcera de la Córnea/cirugía , Úlcera , Córnea/cirugía , Sustancia Propia/cirugía
7.
Klin Monbl Augenheilkd ; 241(1): 102-109, 2024 Jan.
Artículo en Alemán | MEDLINE | ID: mdl-37164338

RESUMEN

PURPOSE: The aim of this study is to compare the healing of corneal epithelial defects or ulcers on the corneal graft in comparison with the patient's own cornea after treatment with 100%, undiluted autologous serum eye drops. METHODS: In a retrospective study over 7 years, we analysed 263 treatments with autologous serum eye drops of persistent corneal epithelial defects (erosions [88%] vs. ulcers [12%]). We compared the epithelial healing tendency of patients with defects on their own cornea (51.9%) vs. patients who had previously undergone penetrating keratoplasty (48.1%). Complete epithelial healing during the 28 days of treatment was considered as therapeutic success. In addition, the recurrence rate of the epithelial defects after finishing the therapy was analysed. RESULTS: 88.2% of the epithelial defects healed during 28 days of therapy. The recurrence rate during follow-up was 5.1%. There was no significant difference with respect to success rate between corneal defects on the patient's own cornea (87.8%) and on the graft (88.6%; p = 0.137). There was a significantly lower success rate for corneal ulcers (74.2%) than for erosions (90.3%; p < 0.001). The recurrence rate of erosions was 4.4%, vs. 4.3% in ulcers during follow-up. CONCLUSION: The results of our study suggest that autologous serum eye drops are a non-invasive and safe alternative treatment for persistent corneal epithelial defects - with no significant difference in patients with a defect on their own cornea vs. defects on the corneal graft. The success rate, but not the recurrence rate, is significantly worse in ulcers than in erosions.


Asunto(s)
Enfermedades de la Córnea , Úlcera de la Córnea , Epitelio Corneal , Oftalmopatías , Humanos , Úlcera , Estudios Retrospectivos , Córnea , Úlcera de la Córnea/diagnóstico , Úlcera de la Córnea/cirugía , Soluciones Oftálmicas , Enfermedades de la Córnea/diagnóstico , Enfermedades de la Córnea/cirugía , Epitelio Corneal/cirugía
8.
Indian J Ophthalmol ; 72(1): 87-93, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-38131576

RESUMEN

PURPOSE: To report the indications for keratoplasty and analyze trends in two decades in India. METHODS: This was a retrospective review of eye bank registries of six tertiary eye care centers located in central and northern India from 2005 to 2021. The patterns of corneal pathology and changes in trends were analyzed. RESULTS: Between 2005 and 2021, 13223 corneal grafts were performed in the six collaborating tertiary eye care centers. The most common indication for keratoplasty in both decades was corneal ulcer (41.1%), followed by corneal scar (25.5%), failed graft (12.0%), post-cataract surgery corneal edema (11.7%), corneal dystrophies (3.1%), corneal ectasia (1.8%), corneal trauma (0.3%), congenital corneal opacity (0.3%), and others (4.1%). An increasing trend was seen in corneal ulcers, failed grafts, and keratoconus. A reducing trend was seen in corneal scar and aphakic bullous keratopathy. There was no change in pseudophakic bullous keratopathy and Fuchs endothelial corneal dystrophy. CONCLUSION: Corneal ulcers, corneal scars, failed grafts, and post-cataract surgery corneal edema remained the foremost indications for keratoplasty in two decades in India. An increasing trend was seen in corneal ulcers and failed grafts which are of concern as these indications carry a poorer outcome. Capacity building in lamellar keratoplasty techniques is the need of the hour as pseudophakic bullous keratopathy was an important indication, and an increasing trend was noticed in keratoconus.


Asunto(s)
Catarata , Enfermedades de la Córnea , Edema Corneal , Lesiones de la Cornea , Trasplante de Córnea , Úlcera de la Córnea , Queratocono , Humanos , Queratocono/cirugía , Edema Corneal/cirugía , Úlcera , Queratoplastia Penetrante , Enfermedades de la Córnea/epidemiología , Enfermedades de la Córnea/cirugía , Úlcera de la Córnea/cirugía , Lesiones de la Cornea/cirugía , Estudios Retrospectivos , India/epidemiología
9.
Indian J Ophthalmol ; 72(1): 130-133, 2024 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-38131585

RESUMEN

We describe customized therapeutic deep anterior lamellar keratoplasty (DALK) for treating a perforated Mooren's ulcer. Slit-lamp biomicroscopy revealed corneal perforation (3.5 mm × 3.0 mm) with iris prolapse. The corneal melt extended from 9.0 o'clock to 4.0 o'clock. The peripheral edge of the ulcer was sloping, whereas the medial edge showed undermining. Immunological tests did not reveal any evidence of systemic autoimmune disease. In view of extensive peripheral corneal melt with large corneal perforation, the patient needed tectonic keratoplasty. The penetrating graft is not only technically demanding but also results in a poor visual outcome. We advised customized tectonic DALK. We used two different-sized trephines to obtain appropriate-sized donor tissue and avoided manual dissection. The post-surgery period was uneventful. He was prescribed topical steroids and oral methotrexate. He achieved 6/9 aided visual acuity at 4 months and maintained it until the last follow-up at 36 months.


Asunto(s)
Perforación Corneal , Trasplante de Córnea , Úlcera de la Córnea , Masculino , Humanos , Perforación Corneal/diagnóstico , Perforación Corneal/etiología , Perforación Corneal/cirugía , Úlcera , Úlcera de la Córnea/diagnóstico , Úlcera de la Córnea/cirugía , Úlcera de la Córnea/tratamiento farmacológico , Trasplante de Córnea/métodos , Agudeza Visual , Queratoplastia Penetrante/métodos
10.
BMC Ophthalmol ; 23(1): 408, 2023 Oct 10.
Artículo en Inglés | MEDLINE | ID: mdl-37817122

RESUMEN

PURPOSE: To report indications and clinical outcomes of corneal grafts ≤ 5.5 mm in diameter ("mini-KP") in a German tertiary referral center. METHODS: Patients who had undergone mini-KP to treat corneal ulcers with or without perforation between 2011 and 2018 at the Department of Ophthalmology, University of Düsseldorf, Germany, were identified from the local keratoplasty registry. All patient records were reviewed for age, gender, laterality, systemic and ophthalmological diseases, etiology of the corneal ulcerative disease, pre- and postoperative visual acuity over a follow-up time of up to 12 months, graft size, postoperative complications and the need for and timing of further corneal interventions. RESULTS: 37 eyes of 37 patients (male: n = 20; female: n = 17) with a mean age (± standard deviation) at presentation of 70 ± 18.8 years (range: 22-92 years) were identified. Most common etiologies were neurotrophic keratopathy (n = 15), dysfunctional tear syndrome (n = 9) and atopic keratoconjunctivitis (9). Mean graft diameter was 4.51 ± 0.63 mm (range: 3-5.5 mm). 23/37 eyes (62%) required no further intervention in the acute phase. 14/37 patients (38%) required secondary corneal intervention, due to complications. One-year graft survival was 78.4%. One eye had to be eviscerated due to recurrent corneal ulceration and endophthalmitis. 36 of 37 eyes were preserved. We found a highly significant correlation between type 2 diabetes and the development of postoperative complications (r = .46; p = .005). Corrected distance visual acuity (CDVA) improved from 1.42 ± 0.75 logMAR to 0.9 ± 0.65 logMAR postoperatively (t (23) = 5.76; p < .001). CONCLUSION: Mini-KP can be used successfully in eyes with advanced corneal ulcers due to various infectious and noninfectious etiologies to restore tectonic stability in the long-term and with moderate visual gains.


Asunto(s)
Enfermedades de la Córnea , Distrofias Hereditarias de la Córnea , Trasplante de Córnea , Úlcera de la Córnea , Diabetes Mellitus Tipo 2 , Humanos , Masculino , Femenino , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Lactante , Queratoplastia Penetrante , Úlcera/cirugía , Enfermedades de la Córnea/cirugía , Úlcera de la Córnea/cirugía , Distrofias Hereditarias de la Córnea/cirugía , Complicaciones Posoperatorias/cirugía , Supervivencia de Injerto , Estudios Retrospectivos , Resultado del Tratamiento
11.
Photodiagnosis Photodyn Ther ; 44: 103806, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37722614

RESUMEN

BACKGROUND: This study evaluates the use of anterior segment optical coherence tomography (AS-OCT) to identify focal changes and inform surgical plans in eyes with Mooren's ulcer. METHODS: A total of 18 eyes of 17 patients with Mooren's ulcer were examined prospectively using the AS-OCT system. RESULTS: Optical hyperreflectivity noted on AS-OCT images was in accordance with corneal ulceration, neovascularization, fibrovascular membranes, the junction of the native stromal bed, and the overlying lamellar corneal grafts. Focal corneal ectasia was observed in 13 eyes with a decrease in corneal thickness to ≤0.39 mm. There was a cut-off value of 0.39 mm in corneal thickness between the eyes with and without focal corneal ectasia in the thinned corneal area (Fisher = 0.383, χ2 = 14.873, P = 0.000). Based on the AS-OCT findings, six eyes were subjected to an individualized lamellar corneal graft. The thickness of the residual cornea after surgery was 47 ± 34 µm less than the presumed healthy corneal thickness before surgery (t = 3.376, P = 0.02). A small corneal perforation covered by a pseudopterygium in Mooren's ulcer was found through AS-OCT but undetectable by slit-lamp biomicroscopy. CONCLUSIONS: AS-OCT is a valuable non-contact technique for monitoring corneal thinning in Mooren's ulcer, and assisting surgical design. A decrease in peripheral corneal thickness to ≤0.39 mm may cause focal corneal ectasia.


Asunto(s)
Úlcera de la Córnea , Fotoquimioterapia , Humanos , Úlcera de la Córnea/diagnóstico por imagen , Úlcera de la Córnea/tratamiento farmacológico , Úlcera de la Córnea/cirugía , Tomografía de Coherencia Óptica , Dilatación Patológica , Úlcera , Fotoquimioterapia/métodos , Fármacos Fotosensibilizantes/uso terapéutico
12.
BMC Ophthalmol ; 23(1): 387, 2023 Sep 21.
Artículo en Inglés | MEDLINE | ID: mdl-37735358

RESUMEN

BACKGROUND: Peripheral ulcerative keratitis (PUK) is a group of inflammatory corneal ulcers with stromal thinning and peripheral localization. Amniotic membranes (AM) are used for their anti-inflammatory and healing properties. A freeze-drying process now allows maintaining the AM viable for a long time at room temperature without altering its physical, biological, and morphologic characteristics. The effectiveness of spongy freeze-dried amniotic membrane (FD-AM) graft with multimodal imaging in the management of severe corneal thinning PUK has not been reported. CASE PRESENTATION: A 67-year-old Caribbean man histologically diagnosed with ulcerative colitis, was referred to our tertiary eye care center for a deep nasal juxtalimbal ulcer of the left eye. He was treated with topical steroids and antibiotics, methylprednisolone pulses, and oral prednisone. Due to continuous stromal thinning with 100 µm of residual corneal thickness, the decision was made to perform surgery. Conjunctival resection, inlay and overlay spongy FD-AM (Visio Amtrix® S, Tissue Bank of France, FR) were performed to preserve globe integrity. Despite tapering off oral steroids, PUK developed in the fellow eye on the 2 months follow-up. Treatment with human monoclonal antibody against tumor necrosis factor-alpha was initiated to control the active underlying inflammation. Six months following surgery, the ulcer was healed and corneal thickness in front of the former ulceration was measured at 525 µm on anterior segment-optical coherence tomography. Confocal microscopy confirmed the integration of the amniotic membrane between the corneal epithelium and the anterior stroma. CONCLUSION: Transplantation of FD-AM with a spongy layer was associated with restoration of normal corneal thickness in the PUK area. It seems to be a safe, effective, and easily accessible solution for the surgical management of PUK with impending perforation.


Asunto(s)
Úlcera de la Córnea , Masculino , Humanos , Anciano , Úlcera de la Córnea/diagnóstico , Úlcera de la Córnea/cirugía , Úlcera , Amnios , Córnea , Antibacterianos
13.
Indian J Ophthalmol ; 71(7): 2892-2896, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37417141

RESUMEN

Corneal melt is a sight-threatening complication of Boston type 1 keratoprosthesis (KPro). Severe corneal melt may result in hypotony, choroidal hemorrhage, and even spontaneous extrusion of the KPro, which may lead to a poor visual prognosis. Lamellar keratoplasty is one surgical option for the management of mild corneal melt, especially when a new KPro is not available. Herein, we present a new surgical technique application, intra-operative optical coherence tomography (iOCT) for the management of cornea graft melt after Boston type 1 KPro implantation. The visual acuity and the intra-ocular maintained stable at 6 months post-operatively, and the KPro remained in place without corneal melting, epithelial ingrowth, or infection. iOCT may prove to be a real-time, non-invasive, and accurate treatment for corneal lamellar dissection and suturing beneath the anterior plate of the KPro, which can effectively help the surgeon to make surgical decisions and reduce post-operative complications.


Asunto(s)
Enfermedades de la Córnea , Trasplante de Córnea , Úlcera de la Córnea , Humanos , Córnea/cirugía , Prótesis e Implantes/efectos adversos , Enfermedades de la Córnea/diagnóstico , Enfermedades de la Córnea/cirugía , Enfermedades de la Córnea/etiología , Tomografía de Coherencia Óptica , Trasplante de Córnea/efectos adversos , Úlcera de la Córnea/cirugía , Implantación de Prótesis , Complicaciones Posoperatorias/cirugía , Estudios Retrospectivos
14.
Vet Surg ; 52(7): 1032-1040, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37309748

RESUMEN

OBJECTIVES: To describe the technique, postoperative complications, and outcome after autologous fascia lata grafting with conjunctival flap overlay in horses with ulcerative keratitis and keratomalacia. STUDY DESIGN: Retrospective case series. ANIMALS: Eleven horses with ulcerative keratitis and keratomalacia. METHODS: Horses included had undergone fascia lata grafting with conjunctival flap overlay due to impending or recent corneal perforation. Preceding therapy, lesion characteristics, postoperative complications, and short- and long-term outcomes were recorded. RESULTS: Postoperative complications included complete (1/11) or partial (2/11) dehiscence of the conjunctival flap and fascia lata graft, postoperative pneumonia (1/11), intermittent hypercreatinemia (2/11) and mild uveitis after trimming of the conjunctival flap (9/10). The donor sites healed without complications (11/11). A satisfactory short-term outcome (at cessation of medical therapy) was achieved in all horses (11/11). Long-term follow-up (median 29 months, range 7-127 months) was available for 10/11 horses. A comfortable eye with functional vision was achieved in 9/10 horses with long-term follow-up, including 3/4 horses with prior corneal perforation and 1/11 horses in which the fascia lata graft completely dehisced 15 days after surgery. Enucleation was required in a single horse (1/10) after phthisis bulbi developed 7 months postoperatively. CONCLUSION: Fascia lata grafting with conjunctival flap overlay appears to be a viable solution for globe preservation in horses with ulcerative keratitis and keratomalacia. Long-term ocular comfort with functional visual outcomes can be achieved in most cases with limited concerns for donor site morbidity while bypassing acquisition, storage or lesion-size limitations related to other biomaterials.


Asunto(s)
Perforación Corneal , Úlcera de la Córnea , Enfermedades de los Caballos , Caballos , Animales , Úlcera de la Córnea/cirugía , Úlcera de la Córnea/veterinaria , Úlcera de la Córnea/complicaciones , Estudios Retrospectivos , Perforación Corneal/complicaciones , Perforación Corneal/veterinaria , Fascia Lata/trasplante , Resultado del Tratamiento , Complicaciones Posoperatorias/veterinaria , Enfermedades de los Caballos/cirugía
15.
Korean J Ophthalmol ; 37(4): 340-347, 2023 08.
Artículo en Inglés | MEDLINE | ID: mdl-37336511

RESUMEN

Granular corneal dystrophy type 2 (GCD2) is an autosomal dominant corneal stromal dystrophy that is caused by p.Arg124His mutation of transforming growth factor ß induced (TGFBI) gene. It is characterized by well demarcated granular shaped opacities in central anterior stroma and as the disease progresses, extrusion of the deposits results in ocular pain due to corneal epithelial erosion. Also, diffuse corneal haze which appears late, causes decrease in visual acuity. The prevalence of GCD2 is high in East Asia including Korea. Homozygous patients show a severe phenotype from an early age, and the heterozygote phenotype varies among patients, depending on several types of compound heterozygous TGFBI mutations. In the initial stage, conservative treatments such as artificial tears, antibiotic eye drops, and bandage contact lenses are used to treat corneal erosion. Different surgical methods are used depending on the depth and extent of the stromal deposits. Phototherapeutic keratectomy removes anterior opacities and is advantageous in terms of its applicability and repeatability. For deeper lesions, deep anterior lamellar keratoplasty can be used as the endothelial layer is not always affected. Recurrence following these treatments are reported within a wide range of rates in different studies due to varying definition of recurrence and follow-up period. In patients who have undergone corneal laser vision-correction surgeries such as photorefractive keratectomy, LASEK, or LASIK including SMILE surgery, corneal opacity exacerbates rapidly with severe deterioration of visual acuity. Further investigations on new treatments of GCD2 are necessary.


Asunto(s)
Distrofias Hereditarias de la Córnea , Opacidad de la Córnea , Úlcera de la Córnea , Queratomileusis por Láser In Situ , Queratectomía Fotorrefractiva , Humanos , Distrofias Hereditarias de la Córnea/diagnóstico , Distrofias Hereditarias de la Córnea/genética , Distrofias Hereditarias de la Córnea/terapia , Córnea/patología , Queratectomía Fotorrefractiva/métodos , Queratomileusis por Láser In Situ/efectos adversos , Opacidad de la Córnea/diagnóstico , Opacidad de la Córnea/etiología , Opacidad de la Córnea/terapia , Úlcera de la Córnea/cirugía , Factor de Crecimiento Transformador beta/genética
16.
Am J Case Rep ; 24: e939626, 2023 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-37339105

RESUMEN

BACKGROUND The use of amniotic membranes for corneal perforations using different surgical techniques has been widely described in the literature. This case report is a novel variation in the technique that can be useful for incorporating in clinical practice when the need arises. CASE REPORT A 36-year-old male patient presented to our clinic with a corneal ulcer in his left eye caused by herpetic keratitis, treated with a topical non-steroidal anti-inflammatory (indomethacin 0.1% solution). Examination revealed a paracentral 2-mm wide corneal perforation on the site of the corneal ulcer. The patient was admitted to the hospital. He was treated with intravenous piperacillin-ofloxacine, and an emergency surgical intervention using a lyophilized amniotic membrane was performed using a "plug and patch" technique. Postoperatively, the patient received 48 h of intravenous antibiotics and was discharged on topical antibiotic/corticosteroid eyedrops along with a 10-day course of oral antibiotics (ofloxacin) and antiviral therapy (valaciclovir). Three months after surgery, the anterior chamber was formed, the corneal defect was closed, and visual acuity improved. One year after initial presentation, anterior segment optical coherence tomography showed a large scarred but healed cornea. CONCLUSIONS We report the successful use of combination of a single round-shaped rolled amniotic membrane with a multilayered amniotic membrane transplantation for the treatment of a 2-mm-wide perforated corneal ulcer. This technique allowed for preservation of the globe integrity without the need for a keratoplasty, stopped further tissue loss, and was associated with a rapid visual recovery.


Asunto(s)
Perforación Corneal , Úlcera de la Córnea , Oftalmopatías , Masculino , Humanos , Adulto , Perforación Corneal/cirugía , Perforación Corneal/complicaciones , Perforación Corneal/tratamiento farmacológico , Úlcera de la Córnea/cirugía , Úlcera de la Córnea/tratamiento farmacológico , Amnios/trasplante , Oftalmopatías/complicaciones , Antibacterianos/uso terapéutico , Glucocorticoides/uso terapéutico
17.
Int Immunopharmacol ; 120: 110273, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37192554

RESUMEN

Post refractive corneal ulcers is a disastrous complication, can affect healthy individuals, is cumbersome to treat, and sometimes has a poor prognosis with corneal scarring. Accurate diagnosis and prompt treatment of corneal infection is very important; however, until now, there has been no specific protocol for the management of this common eye disease and severe cases may require a corneal transplant. The patient is a 42-year-old male who suffered a corneal ulcer after photo refractive keratectomy (PRK) surgery in which the cornea was completely destroyed. None of the routine treatments were effective and, due to the progression of corneal melting, the patient became a candidate for tectonic corneal transplant. As a last option, topical orthokine treatment was prescribed for this patient which had a dramatic improvement in the clinical course with the control of inflammation. In this study, a new method of orthokine therapy was performed for a severe corneal ulcer and recovery was clearly evident in the patient follow-up. This is the first case report of treatment of a corneal wound infection with this method of orthokine therapy. It is suggested for consideration as a new treatment for such infectious disease.


Asunto(s)
Lesiones de la Cornea , Úlcera de la Córnea , Queratectomía Fotorrefractiva , Procedimientos Quirúrgicos Refractivos , Masculino , Humanos , Adulto , Úlcera de la Córnea/tratamiento farmacológico , Úlcera de la Córnea/cirugía , Queratectomía Fotorrefractiva/métodos , Córnea/cirugía , Refracción Ocular
19.
Vet Ophthalmol ; 26(2): 155-160, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36738127

RESUMEN

OBJECTIVE: The aim of this study was to describe placement of a nictitating membrane flap as a treatment for corneal ulceration and bullous keratopathy in two horses. ANIMALS STUDIED: A 13-year-old American Saddlebred mare presented for severe corneal edema, superficial stromal ulceration, and a central bulla of the left eye. A 4-year-old Trakhener stallion also presented with a large axial bulla of the left eye with concurrent severe corneal edema and a deep stromal ulcer. PROCEDURE: A complete ophthalmic examination was performed. Samples were obtained for corneal cytology, and both horses were started on aggressive medical therapy. Both underwent general anesthesia for placement of a nictitating membrane flap and a subpalpebral lavage system (SPLS). RESULTS: Corneal cytology for each horse revealed a mixed bacterial population. Moderate Pseudomonas aeruginosa was cultured from the mare, while Aspergillus species and a few Enterococcus gallinarum were cultured from the stallion. The bullae in both horses resolved at 3 and 4 weeks and vision returned in the affected eye 4.5 and 3 months postoperatively at the last follow-up, respectively. CONCLUSION: Aggressive medical management with concurrent placement of a nictitating membrane flap is effective to treat bullous keratopathy in two horses. The described treatments could be used to treat horses that develop severe or progressive bullous corneal lesions.


Asunto(s)
Edema Corneal , Úlcera de la Córnea , Caballos , Animales , Masculino , Femenino , Edema Corneal/veterinaria , Membrana Nictitante/patología , Vesícula/patología , Vesícula/veterinaria , Córnea/patología , Úlcera de la Córnea/cirugía , Úlcera de la Córnea/veterinaria , Úlcera de la Córnea/patología
20.
Int Ophthalmol ; 43(7): 2341-2348, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36692698

RESUMEN

PURPOSE: To evaluate the safety and efficacy of stromal lenticule obtained from small-incision lenticule extraction (SMILE) surgery versus amniotic membrane graft (AMG) augmented with platelet-rich plasma (PRP) for the treatment of perforated corneal ulcers and compare the results between the two groups. PATIENTS AND METHODS: This is a comparative retrospective study that included 40 eyes with medium-sized corneal perforations, which were classified into two equal groups of 20 eyes each; group (A) was treated with SMILE lenticule graft and group (B) was treated with AMG augmented with PRP. Pre- and postoperative evaluations were carried out using both slit-lamp (SL) examination and anterior segment optical coherence tomography (AS-OCT), including closure of perforation, complete healing, and best corrected visual acuity (BCVA). RESULTS: Complete closure of the perforation was achieved in both groups. However, healing was faster in the SMILE lenticule group than in the AMG with PRP group (P < 0.05). Complete healing was achieved in both groups: 100% in SMILE lenticule group and 95% in AMG with PRP group (P > 0.05). Both groups had few insignificant complications (30% in each), which were managed. CONCLUSION: Both methods achieved adequate healing of corneal perforations within few weeks without significant complications. However, the stromal lenticule obtained from small-incision lenticule extraction (SMILE) surgery tended to be safer with faster healing than AMG with PRP.


Asunto(s)
Perforación Corneal , Cirugía Laser de Córnea , Úlcera de la Córnea , Plasma Rico en Plaquetas , Humanos , Úlcera de la Córnea/diagnóstico , Úlcera de la Córnea/cirugía , Perforación Corneal/diagnóstico , Perforación Corneal/cirugía , Sustancia Propia/trasplante , Estudios Retrospectivos , Amnios/trasplante , Agudeza Visual , Cirugía Laser de Córnea/métodos , Láseres de Excímeros/uso terapéutico
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