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1.
Rom J Ophthalmol ; 68(1): 53-56, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38617729

RESUMO

Objective: To describe acute calcareous corneal degeneration as a complication of chronic graft-versus-host disease. Materials and methods: Clinical case and review of the literature. Results: We presented a case of bilateral acute calcareous corneal degeneration in a patient with chronic graft-versus-host disease. Conclusions: Chronic graft-versus-host disease (cGVHD) occurs in 50-70% of bone marrow transplantation patients, the most frequent ocular complication being keratoconjunctivitis sicca (KCS). Calcareous corneal degeneration is a type of calcium deposition that can be secondary to chronic ocular inflammation or dry eye, but there are few cases reported of acute calcareous corneal degeneration and recurrent perforation in cGVHD. Abbreviations: GVHD = Chronic graft-versus-host disease, aGVHD = Acute graft-versus-host disease, cGVHD = Chronic graft-versus-host disease, KCS = Keratoconjunctivitis sicca, PKP = Penetrating keratoplasty, AMT = Amniotic membrane transplantation, PRGF = Plasma rich in growth factors, OD = Right eye, OS = Left eye.


Assuntos
Síndrome de Bronquiolite Obliterante , Distrofias Hereditárias da Córnea , Ceratoconjuntivite Seca , Humanos , Córnea , Ceratoplastia Penetrante , Inflamação
2.
Cureus ; 16(3): e55842, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38590483

RESUMO

This case report presents the clinical course of a 53-year-old male farmer with nephrotic syndrome, specifically focal segmental glomerulosclerosis, who developed a fulminant eye infection. While receiving maintenance hemodialysis and immunosuppressive therapy, the patient presented with sudden onset redness, discharge, and decreased vision in his right eye. Initial management with topical antibiotics and steroids failed to halt the progression of the infection, leading to corneal perforation and iris prolapse within a few days. Despite the discontinuation of immunosuppressive medications and initiation of broad-spectrum antimicrobial therapy, the patient's compromised renal function and anaemia precluded surgical intervention. This case underscores the challenges in managing severe ocular infections in immunocompromised patients. It highlights the importance of early recognition, aggressive antimicrobial therapy, and close ophthalmologic monitoring in preventing sight-threatening complications. Despite intensive management, the prognosis for visual recovery in such cases may be poor, emphasizing the need for preventive strategies and careful surveillance in high-risk patient populations.

3.
Cureus ; 16(3): e55471, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38444929

RESUMO

Herpetic uveitis is an easy diagnosis to miss, which can lead to devastating consequences. The aim of this report is to create awareness of how this disease can present, appropriate clues to the diagnosis, and how it should be managed. We report a case of a 70-year-old female who presented with redness and painless blurry vision in her right eye and was treated with topical corticosteroid drops for presumed idiopathic anterior uveitis. Despite initial symptomatic improvement, she reattended with a significant deterioration in vision and was found to have a large corneal infiltrate and associated perforation. The perforation was sealed with corneal gluing, and she was treated for presumed herpetic anterior uveitis with oral acyclovir. Corneal polymerase chain reaction (PCR) specimen was positive for herpes simplex virus DNA. The perforation started to leak again despite repeat corneal gluing, so an emergency therapeutic penetrating keratoplasty was performed. She has remained on prophylactic oral acyclovir for the last 24 months, with no recurrence and the graft remains clear.

4.
BMC Ophthalmol ; 24(1): 117, 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38481187

RESUMO

BACKGROUND: To report a case of interface fluid syndrome (IFS) following traumatic corneal perforation repair after small incision lenticule extraction (SMILE). CASE PRESENTATION: A 23-year-old woman, with a past history of SMILE, was struck in the left eye with a barbecue prod and subsequently underwent corneal perforation repair at local hospital. Primary wound repaired with a single 10 - 0 nylon suture at the area of leakage. After the surgery, her best corrected visual acuity (BCVA) was 20/30. Four days later, she presented at our hospital with blurred vision, and interface fluid syndrome (IFS) was diagnosed. Intraoperative optical coherence tomography (iOCT) was used to guide the resuturing of the corneal perforation in the left eye, followed by anterior chamber gas injection. At the first postoperative month, the BCVA was 20/25. The corneal cap adhered closely to the stroma, the surface became smooth. CONCLUSIONS: This case illustrates that any corneal perforation following lamellar surgery, including SMILE, may lead to IFS. It is crucial to consider the depth of corneal perforation, and intraoperative optical coherence tomography (iOCT) plays a unique role in the repair procedure.


Assuntos
Perfuração da Córnea , Cirurgia da Córnea a Laser , Miopia , Humanos , Feminino , Adulto Jovem , Adulto , Perfuração da Córnea/diagnóstico , Perfuração da Córnea/etiologia , Perfuração da Córnea/cirurgia , Miopia/cirurgia , Miopia/diagnóstico , Substância Própria/cirurgia , Procedimentos Cirúrgicos Oftalmológicos , Córnea , Tomografia de Coerência Óptica/métodos , Cirurgia da Córnea a Laser/efeitos adversos , Cirurgia da Córnea a Laser/métodos , Topografia da Córnea , Lasers de Excimer
5.
Ophthalmol Ther ; 13(4): 979-994, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38345711

RESUMO

INTRODUCTION: To investigate the long-term outcomes of emergency penetrating keratoplasty using cryopreserved human donor corneas in the management of actual or imminent corneal perforation. METHODS: A retrospective analysis was performed of the treatment efficacy of emergency penetrating keratoplasty using a cryopreserved human donor cornea, in 14 eyes of 14 patients with corneal ulcers of different etiology. For comparison, the medical histories of 14 patients who had undergone penetrating keratoplasty with the same indication, but received a regularly processed human corneal graft, were retrospectively analyzed. In both groups, the primary endpoint for graft failure was repeat surgery, defined as the necessity for amniotic membrane transplantation, conjunctival flap, or repeat penetrating keratoplasty, during a follow-up time of maximally 12 months. RESULTS: The difference in the need for repeated surgeries between the cryopreserved human donor cornea group and cultivated tissue graft group was not statistically significant (p = 0.835). Specifically, repeat complex surgery of any kind within 6 months was necessary in 50% of the cryopreserved cornea group and in 57.1% of the control group, with no further surgical interventions during the remainder of the follow-up period. However, repeat penetrating keratoplasty occurred more frequently in the cryopreserved cornea group (n = 5) than in the control group (n = 1) during the first 12 months after treatment (p = 0.048). CONCLUSION: Cryopreserved corneas appear to be a viable option for promptly addressing emergencies and stabilizing the corneal situation, providing a faster solution compared to waiting for fresh tissue availability. However, repeat penetrating keratoplasty is more frequent when cryopreserved human donor corneas are used. Cryopreserved human donor corneas may be useful if surgical treatment is urgent and alternative options, such as tissue use, a conjunctival flap, or multilayer amniotic membrane transplantation, are not available.

6.
Int J Ophthalmol ; 17(1): 173-187, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38239948

RESUMO

AIM: To review recent innovations, challenges, and applications of small incision lenticule extraction (SMILE) extracted lenticule for treating ocular disorders. METHODS: A literature review was performed in the PubMed database, which was last updated on 30 December 2021. There was no limit regarding language. The authors evaluated the reference lists of the collected papers to find any relevant research. RESULTS: Due to the simplicity and accuracy of modern femtosecond lasers and the extensive development of SMILE surgery, many healthy human corneal stromal lenticules were extracted during surgery, motivating some professionals to investigate the SMILE lenticule reusability in different ocular disorders. In addition, new approaches had been developed to preserve, modify, and bioengineer the corneal stroma, leading to the optimal use of discarded byproducts such as lenticules from SMILE surgery. The lenticules can be effectively re-implanted into the autologous or allogenic corneas of human subjects to treat refractive errors, corneal ectasia, and corneal perforation and serve as a patch graft for glaucoma drainage devices with better cosmetic outcomes. CONCLUSION: SMILE-extracted lenticules could be a viable alternative to human donor corneal tissue.

7.
Graefes Arch Clin Exp Ophthalmol ; 262(2): 519-526, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37594511

RESUMO

BACKGROUND: Corneal perforation is an ophthalmic emergency. The conventional management of corneal perforation can be associated with severe complications especially in patients with ocular surface disease. Endothelial keratoplasty has been suggested as an alternative surgical technique for the management of corneal perforations. We present a case series of nine patients with corneal perforation and ocular surface disease managed with secondary patch endothelial keratoplasty. METHODS: This is a retrospective case series of nine patch endothelial keratoplasties performed between 2016 and 2022 at a quaternary eye hospital in Australia. The surgical technique is similar to conventional endothelial keratoplasty except descemetorhexis was not performed. RESULTS: A total of 9 cases were treated during the review period. Eight of the nine cases had an improvement in visual acuity. One case failed to achieve corneal tectonic objective. CONCLUSION: Patch endothelial keratoplasty is a safe secondary procedure for the management of corneal perforations in patients with ocular surface disease.


Assuntos
Doenças da Córnea , Perfuração da Córnea , Transplante de Córnea , Humanos , Perfuração da Córnea/diagnóstico , Perfuração da Córnea/etiologia , Perfuração da Córnea/cirurgia , Estudos Retrospectivos , Transplante de Córnea/métodos , Córnea/cirurgia , Acuidade Visual , Ceratoplastia Penetrante/métodos , Doenças da Córnea/diagnóstico , Doenças da Córnea/etiologia , Doenças da Córnea/cirurgia
8.
Arq. bras. oftalmol ; 87(2): e2022, 2024. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1533790

RESUMO

ABSTRACT Purpose: Wet bio-amniotic membrane plugging combined with transplantation is a novel option that combined amniotic membrane plugging with amniotic membrane transplantation for the treatment of small corneal perforations. This study aimed to evaluate the efficacy of wet bio-amniotic membrane plugging in the treatment of small corneal perforations and compared it with that of the penetrating keratoplasty procedure. Methods: Forty patients (41 eyes) with small corneal perforations <3 mm in diameter treated at our hospital between July 2018 and January 2021 were retrospectively included. Among them, 21 eyes were treated with wet bio-amniotic membrane plugging (wet bio-amniotic membrane plugging group), and 20 eyes were treated with penetrating keratoplasty procedure (penetrating keratoplasty procedure group). The best-corrected visual acuity, anterior chamber formation, corneal thickness, primary disease control, postoperative complications, and graft survival rate were assessed. Results: No significant difference in baseline characteristics was found between the wet bio-amniotic membrane plugging and penetrating keratoplasty procedure groups (p>0.05). The postoperative control rates of primary diseases in the wet bio-amniotic membrane plugging and penetrating keratoplasty procedure groups were 95.2% and 90.0%, respectively (p=0.481). Visual acuity was improved 6 months after the operation in the wet bio-amniotic membrane plugging group and was improved at postoperative 1 month in the penetrating keratoplasty procedure group. The formation time of the anterior chamber in the wet bio-amniotic membrane plugging group was significantly shorter than that in the penetrating keratoplasty procedure group (p=0.023). The corneal thickness of the two groups significantly increased 12 months after the operation; however, the degree of thickening in the penetrating keratoplasty procedure group was higher than that in the wet bio-amniotic membrane plugging group (p<0.001). During the follow-up, postoperative complications were not different between the two groups (p>0.999). Conclusion: The results suggest that wet bio-amniotic membrane plugging is effective and safe in the treatment of small corneal perforations. Thus, it can be used as an emergency treatment alternative to penetrating keratoplasty procedure for small corneal perforations.

9.
Ophthalmol Ther ; 13(2): 645-649, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38127195

RESUMO

INTRODUCTION: Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly employed perioperatively to reduce intraoperative prostaglandin release, diminishing pain, preventing miosis, modulating postoperative inflammation, and reducing the incidence of cystoid macular edema (CME). CASE REPORT: A 70-year-old female patient without previous history of ocular or systemic disease was urgently referred to our hospital because of a sudden corneal perforation concerning her left eye (OS). The patient had instilled bromfenac eye drops and antiseptic eye drops twice and four times daily, respectively, for 2 days only, in preparation of scheduled cataract surgery. Slit-lamp examination revealed diffuse inferior corneal melting with a 1 × 2 mm area of full-thickness perforation and a very shallow anterior chamber. Both topical agents were immediately discontinued. Cyanoacrylate glue was applied to seal the perforation and a bandage contact lens was applied together with a topical antibiotic given hourly. Two hours later, the anterior chamber started to reform. The following day, the anterior chamber was fully reformed with a negative Seidel test. At her next follow-up appointment, 1 month later, the glue was detached and the cornea was seen to have successfully healed with only some corneal thinning remaining inferiorly. CONCLUSIONS: Perioperative use of topical NSAIDs in combination with antiseptic eye drops may rarely elicit corneal perforation in certain susceptible elderly individuals. Their use should therefore be carefully monitored.

10.
Heliyon ; 9(12): e22693, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38107269

RESUMO

Purpose: To investigate the efficiency of amniotic membrane transplantation (AMT) combined with conjunctival flap covering surgery (CFCS) for patients with corneal perforations in fungal keratitis (FK). Methods: In this non-comparative, retrospective case series, 16 participants of corneal perforation in FK were successfully treated by a combination of multilayer AMT and bipedicle conjunctival flap with partial tenon's capsule. Corneal healing, recurrence of FK, visual acuity, and relevant complications were reported as outcome measures. Results: Sixteen patients (13 male, 3 female) had a mean age of 58.8 ± 10.3 (range 29-72) years. The mean diameter of corneal perforation was 1.9 ± 0.7 (range 0.5-2.8) mm. Corneal perforations healed and all the patients preserved their eyeballs. During the 11.0 ± 4.4 (range 6-18) months of follow-up, there was no recurrence of FK in any of these cases. Visual acuity improved in 15 eyes (93.8 %) and remained unchanged in 1 patient (6.3 %) who had no light perception when first admitted. All 6 patients who accepted secondary keratoplasty showed improved best corrected visual acuity of more than 4 lines. The most frequently found fungi were Aspergillus species (6 of 16, 37.5 %) and Fusarium species (4 of 16, 25.0 %), followed by 1 Scedosporium apiospermum (1 of 16, 6.3 %). Conclusions: Combination AMT with CFCS is a safe and effective surgery for patients with corneal perforations in FK, particularly where eye banks and fresh corneas are not available. This surgery could preserve the integrity of the eyeball and avoid the recurrence of FK. Besides, it provides a greater opportunity for further optical keratoplasty.

11.
Eur J Ophthalmol ; : 11206721231212087, 2023 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-37915114

RESUMO

PURPOSE: To report a rare case of a 19-year-old girl who presented with spontaneous bilateral corneal perforation in a setting of ocular rosacea. METHODS: Ocular rosacea was diagnosed and treated with doxycycline. Cyanoacrylate glue was applied to treat corneal perforations. RESULTS: At six months follow up there is good healing, visual acuity has improved, anterior chamber is deep with no Seidel. CONCLUSIONS: Rosacea is a multifactorial disease with an unclear pathophysiology. The ocular manifestations of rosacea (ocular rosacea) may occur without skin involvement, are not specific and can range from mild blepharitis to sight-threatening conditions. This case shows how ocular rosacea can lead to serious vision-threatening complications with mild symptoms. Cyanoacrylate glue and systemic antibiotic treatment are effective treatments.

12.
BMC Ophthalmol ; 23(1): 436, 2023 Oct 27.
Artigo em Inglês | MEDLINE | ID: mdl-37891524

RESUMO

BACKGROUND: Deep anterior lamellar keratoplasty (DALK) has gained popularity in cases of corneal thinning and leaking descemetocele. In this study, we introduced an intralamellar tectonic patch graft in addition to conventional DALK procedures to treat frank cornea perforation. METHODS: This retrospective case series included 13 patients (13 eyes) with frank corneal perforations who underwent DALK combined with intralamellar tectonic patch graft between December 2015 and December 2021. In addition to the standard DALK procedure, the perforation site was repaired with an extra intralamellar tectonic patch graft. The collected data included patient demographics, aetiology, size and location of the corneal perforation, visual acuity, surgical details, and postoperative complications. RESULTS: Seven patients underwent autologous intralamellar patch grafts, whereas six received allogeneic ones. Anatomical success was achieved in all patients. The mean postoperative follow-up was 33.31 ± 25.96 months (6-73 months). The postoperative visual acuity (0.90 ± 0.65 logMAR) was significantly improved (P = 0.003) compared to the preoperative score (1.74 ± 0.83 logMAR). Best corrected visual acuity (BCVA) improved in 12 eyes (92.3%). The mean endothelial cell density was 2028 ± 463 cells/mm2, 6-12 months postoperatively. There was no recurrence of perforation, and the anterior lamellar graft remained transparent in 12 patients (92.3%). Postoperative complications included epithelial defects (23.1%), ocular hypertension (15.4%), and cataract (7.7%). CONCLUSIONS: DALK combined with intralamellar tectonic patch graft may serve as a secure and effective alternative in treating frank corneal perforation, with reduced complications compared to conventional penetrating keratoplasty.


Assuntos
Perfuração da Córnea , Transplante de Córnea , Humanos , Transplante de Córnea/métodos , Perfuração da Córnea/cirurgia , Estudos Retrospectivos , Ceratoplastia Penetrante/métodos , Complicações Pós-Operatórias/etiologia , Seguimentos , Resultado do Tratamento
13.
BMC Ophthalmol ; 23(1): 408, 2023 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-37817122

RESUMO

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.


Assuntos
Doenças da Córnea , Distrofias Hereditárias da Córnea , Transplante de Córnea , Úlcera da Córnea , Diabetes Mellitus Tipo 2 , Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Lactente , Ceratoplastia Penetrante , Úlcera/cirurgia , Doenças da Córnea/cirurgia , Úlcera da Córnea/cirurgia , Distrofias Hereditárias da Córnea/cirurgia , Complicações Pós-Operatórias/cirurgia , Sobrevivência de Enxerto , Estudos Retrospectivos , Resultado do Tratamento
14.
Ophthalmol Ther ; 12(6): 3403-3413, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37589930

RESUMO

INTRODUCTION: The purpose of this study was to report the success and long-term outcomes of cyanoacrylate tissue adhesive (CTA) application in the management of corneal perforation disorders. METHODS: This retrospective case series describes the profile and outcomes of eyes that underwent CTA for corneal perforation over an 11-year period from January 2009 until January 2020 at a tertiary eye centre in the United Kingdom. RESULTS: In total, 25 eyes underwent CTA application during the study period. Non-traumatic sterile corneal melt was responsible in more than half of the cases (56.0%; n = 14) followed by infection (32.0%; n = 8) and trauma (12.0%; n = 3). Median size of perforation was 2.0 mm (interquartile range, IQR 1.0-3.0). The most common anatomical location of corneal perforation was central (56.0%; n = 14). Ocular surface disease was seen in almost all eyes except two (92.0%; n = 23) with dry eye disease being the most common (48.0%; n = 12). Amongst 23 eyes that completed follow-up (median 27 months; IQR 9.5-46.5), single CTA application was successful in achieving intact globe in 13 (56.5%) eyes and repeat gluing sealed total of 20 (86.9%) eyes. Survival analysis showed cumulative success of 71.0% and 51.2% at 90 and 250 days, respectively. The CTA was retained in the eyes for median of 94.0 days (IQR 30.0-140.5). A total of five patients developed adverse events, including endophthalmitis (n = 2), following CTA application. CONCLUSIONS: CTA was highly effective in sealing corneal perforations in acute setting and showed moderate long-term success. However, multiple applications are often required.

15.
BMC Ophthalmol ; 23(1): 363, 2023 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-37641016

RESUMO

BACKGROUND: Pterygium is a common ocular surface disease. Pterygium combined with corneal perforation is rare. CASE PRESENTATION: A 28-year-old female patient visited our outpatient clinic due to sudden onset of blurred vision and increased tearing in her left eye. The visual acuity was 1.0 OD and intraocular pressure (IOP) of 19.5 mmHg for the right eye with no significant abnormalities found in the anterior and posterior segments. The visual acuity of her left eye was 0.06, and IOP was 6.2 mmHg. A triangular vascular membranous tissue was seen in her left eye below the nose growing into the cornea and the pupil area was not touched. Slit-lamp examination revealed a tiny round corneal perforation in 8 o'clock position of the lesion area. Hospital diagnosis was given as pterygium combined with corneal perforation. The patient was treated with levofloxacin eye drops and autologous serum-based eye drops. CONCLUSIONS: We report a rare case of pterygium combined with corneal perforation. Perforation is a very rare complication of pterygium. This patient received proper treatment and good result was seen. This article aimed to improve clinicians' understanding of pterygium.


Assuntos
Perfuração da Córnea , Pterígio , Humanos , Feminino , Adulto , Pterígio/complicações , Pterígio/diagnóstico , Perfuração da Córnea/diagnóstico , Perfuração da Córnea/etiologia , Córnea , Soluções Oftálmicas
16.
Am J Ophthalmol Case Rep ; 32: 101885, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37521803

RESUMO

Purpose: Corneal perforation due to severe melting is a very dangerous, sight-threatening condition requiring immediate management due to the high risk of endophthalmitis and critical hypotony. In the case of perforated corneal grafts, retransplantation is usually postponed to avoid the detrimental effects of inflammation on the new graft. We describe the first case of the use of a TutoPatch graft for emergency replacement of a lamellar graft perforation over acute infectious total melting. Observations: A 42-year-old male patient presented to the Emergency Department with pain in the left eye, which was red photophobic. He had been treated with bilateral deep anterior lamellar keratoplasty (DALK) for advanced keratoconus 5 years previously and had been experiencing recurrent corneal ulcers in the left eye within the last 8 months. Clinical examination documented corneal perforation over acute infectious melting involving the total graft surface in the left eye. The infected graft was removed along with the perforated infected residual Descemet membrane, and a double-layer TutoPatch covering was sutured to the host's margin with 10.0 nylon. The covering was left in place for three weeks, allowing the patient to undergo retransplant three weeks later without complications. Conclusions and importance: TutoPatch covering can be safely used as an easy-to-preserve emergency material for a temporary bridge to retransplantation in large acute infectious corneal melting.

17.
Case Rep Ophthalmol ; 14(1): 288-294, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37485240

RESUMO

We report a case of a patient with autism spectrum disorder (ASD) and perforated keratomalacia secondary to vitamin A deficiency. A 6-year-old boy complained of difficulty in opening the eyelids. The ocular conjunctiva was hyperemic and keratinized with purulent ocular (eye) discharge. Both corneas showed epithelial defects with hypopyon. The serum vitamin A level was ≤5 IU/dL (normal 97-316), leading to a diagnosis of xerophthalmia and keratomalacia due to vitamin A deficiency. Intramuscular injection of vitamin A (50,000 IU/day), as well as oral administration of multivitamin (containing 2,500 IU of vitamin A) and zinc supplement at 50 mg/day, allowed him to open both eyes and show interest in tablet devices 14 days after the diagnosis. During the course of the treatment, corneal perforation was observed, but it was closed without contact lens wear or amniotic patch and managed with vitamin A replacement therapy and antimicrobial eye drops. The epithelium extended to the area of the right cornea that had been melted, and although scarring corneal opacity remained, there were no obvious signs of infection. Early diagnosis is difficult because children with ASD do not express complaints, and vitamin A deficiency should be considered in patients with a severely unbalanced diet and complaints of difficulty opening the eyelids.

18.
Ocul Surf ; 28: 254-261, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37146902

RESUMO

PURPOSE: Pseudomonas aeruginosa keratitis is a severe ocular infection that can lead to perforation of the cornea. In this study we evaluated the role of bacterial quorum sensing in generating corneal perforation and bacterial proliferation and tested whether co-injection of the predatory bacteria Bdellovibrio bacteriovorus could alter the clinical outcome. P. aeruginosa with lasR mutations were observed among keratitis isolates from a study collecting samples from India, so an isogenic lasR mutant strain of P. aeruginosa was included. METHODS: Rabbit corneas were intracorneally infected with P. aeruginosa strain PA14 or an isogenic ΔlasR mutant and co-injected with PBS or B. bacteriovorus. After 24 h, eyes were evaluated for clinical signs of infection. Samples were analyzed by scanning electron microscopy, optical coherence tomography, sectioned for histology, and corneas were homogenized for CFU enumeration and for inflammatory cytokines. RESULTS: We observed that 54% of corneas infected by wild-type PA14 presented with a corneal perforation (n = 24), whereas only 4% of PA14 infected corneas that were co-infected with B. bacteriovorus perforate (n = 25). Wild-type P. aeruginosa proliferation was reduced 7-fold in the predatory bacteria treated eyes. The ΔlasR mutant was less able to proliferate compared to the wild-type, but was largely unaffected by B. bacteriovorus. CONCLUSION: These studies indicate a role for bacterial quorum sensing in the ability of P. aeruginosa to proliferate and cause perforation of the rabbit cornea. Additionally, this study suggests that predatory bacteria can reduce the virulence of P. aeruginosa in an ocular prophylaxis model.


Assuntos
Perfuração da Córnea , Infecções Oculares Bacterianas , Ceratite , Infecções por Pseudomonas , Animais , Coelhos , Pseudomonas aeruginosa , Infecções por Pseudomonas/microbiologia , Ceratite/tratamento farmacológico , Córnea/patologia , Bactérias , Proliferação de Células , Infecções Oculares Bacterianas/microbiologia
19.
Indian J Ophthalmol ; 71(4): 1373-1381, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-37026269

RESUMO

Corneal perforations in eyes with dry eye disease (DED) are difficult to manage due to the interplay of several factors such as the unstable tear film, surface inflammation, and the underlying systemic disease affecting the wound healing process, and the eventual outcome. A careful preoperative examination is required to identify the underlying pathology, and status of ocular surface and adnexa, rule out microbial keratitis, and order appropriate systemic workup in addition to assessing the perforation itself. Several surgical options are available, which include tissue adhesives, multilayered amniotic membrane grafting (AMT), tenon patch graft (TPG), corneal patch graft (CPG), and penetrating keratoplasty (PK). The choice of procedure depends upon the size, location, and configuration of the perforation. In eyes with smaller perforations, tissue adhesives are effective treatment modalities, whereas AMT, TPG, and CPG are viable options in moderate-sized perforations. AMT and TPG are also preferable in cases where the placement of a bandage contact lens may be a challenge. Large perforations require a PK, with additional procedures such as tarsorrhaphy to protect the eyes from the associated epithelial healing issues. Conjunctival flaps are considered in eyes with poor visual potential. The management of the acute condition is carried out in conjunction with measures to improve the tear volume bearing in mind the chances of delayed epithelialization and re-perforation in these cases. Administration of topical and systemic immunosuppression, when indicated, helps improve the outcome. This review aims to facilitate clinicians in instituting a synchronized multifaceted therapy for the successful management of corneal perforations in the setting of DED.


Assuntos
Doenças da Córnea , Perfuração da Córnea , Síndromes do Olho Seco , Ceratite , Adesivos Teciduais , Humanos , Perfuração da Córnea/diagnóstico , Perfuração da Córnea/etiologia , Perfuração da Córnea/cirurgia , Ceratite/cirurgia , Ceratoplastia Penetrante , Síndromes do Olho Seco/diagnóstico , Síndromes do Olho Seco/cirurgia , Doenças da Córnea/cirurgia
20.
Rom J Ophthalmol ; 67(1): 77-80, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37089810

RESUMO

Purpose: To present the case of a patient with a history of trauma and corneal foreign body in the right eye, followed by decreased visual acuity in the right eye, corneal perforation with good recovery after surgical treatment. Material and method: We report a case of a patient who presented to our clinic with a sudden decrease of visual acuity in the right eye, two months after an incident resulting in a corneal foreign body in the right eye. In the case presented, the patient applied a local medical self-treatment, an antibiotic and a topical corticosteroid. After a few weeks, the patient presented to the ophthalmologist, a foreign body was extracted from the cornea of the right eye and a topical treatment with a non-steroidal anti-inflammatory drug, a cycloplegic and an antibiotic were indicated. However, corneal perforation occurred and the patient was urgently sent to our service, where a corneal anaesthesia was also found. Results: Corneal perforation healed with a minor paracentral opacification. Discussions: Corneal perforation in our patient was due to corneal melting because of topical steroid anti-inflammatory autotherapy, late corneal foreign body extraction and topical treatment with non-steroidal anti-inflammatory drugs. Corneal anesthesia is also an important factor that enhances corneal melting and perforation. The surgical intervention performed healed the corneal perforation. Conclusions: Corneal anaesthesia and topical anti-inflammatory administration led to corneal perforation. Corneal sensitivity should be tested in patients with corneal foreign body. Corneal patching proved to be an adequate solution in this patient.


Assuntos
Perfuração da Córnea , Úlcera da Córnea , Corpos Estranhos no Olho , Humanos , Perfuração da Córnea/diagnóstico , Perfuração da Córnea/etiologia , Córnea/cirurgia , Anti-Inflamatórios não Esteroides/uso terapêutico , Úlcera da Córnea/tratamento farmacológico , Corpos Estranhos no Olho/complicações , Corpos Estranhos no Olho/diagnóstico , Corpos Estranhos no Olho/cirurgia , Anti-Inflamatórios , Antibacterianos/uso terapêutico
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