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1.
Zhonghua Yan Ke Za Zhi ; 60(10): 854-859, 2024 Oct 11.
Article in Chinese | MEDLINE | ID: mdl-39375144

ABSTRACT

Microsporidia, a unicellular eukaryotic microorganism, poses a risk of infecting the eyes, precipitating microsporidia keratitis (MK). This condition typically manifests in two forms: microsporidian keratoconjunctivitis (MKC) or stromal keratitis (MSK). While MKC often resolves spontaneously, it can progress to MSK, a vision-threatening condition that, in severe instances, may lead to corneal perforation. Epidemiological studies reveal that MK is prevalent in Southeast Asia, particularly during the rainy season. Diagnosis encompasses a range of methods, including corneal scraping for microbiological analysis, PCR testing, and advanced imaging techniques such as AS-OCT and IVCM. Therapeutic approaches vary, with MKC typically managed through local and systemic drug therapy, while MSK may necessitate more aggressive interventions, including corneal transplantation. In China, MK case reports are scarce, and physicians still grapple with a lack of comprehensive understanding regarding its clinical presentation, diagnostic strategies, and treatment options. This deficit can lead to missed or misdiagnoses, as well as overtreatment. Consequently, this review endeavors to comprehensively outline the epidemiology, etiology, clinical features, diagnostic modalities, and therapeutic interventions for MK, thereby offering valuable insights and guidance for clinical practice.


Subject(s)
Eye Infections, Fungal , Keratitis , Microsporidia , Microsporidiosis , Humans , Microsporidiosis/diagnosis , Microsporidiosis/therapy , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Keratitis/diagnosis , Keratitis/therapy , Keratitis/microbiology , Corneal Transplantation
2.
Indian J Ophthalmol ; 72(10): 1488-1494, 2024 Oct 01.
Article in English | MEDLINE | ID: mdl-39331440

ABSTRACT

INTRODUCTION: Many countries from South-East Asia reported an epidemic of sino-orbital mucormycosis (SOM), otherwise a rare disease, during the coronavirus disease 2019 pandemic. SOM, a potentially fatal disease, is typically treated with orbital exenteration and systemic antifungals after metabolic stabilization. There is no clear evidence of survival benefit of exenteration in the literature, and thus, there have been attempts at globe conserving treatments like orbital infusion after limited debridement and intraorbital injections with Amphotericin B (IOAB). METHODS: We conducted a prospective comparative interventional study at a tertiary eye care hospital to evaluate treatment outcomes with the use of adjunctive IOAB in cases of SOM with mild to moderate orbital disease. RESULTS: Thirty-six patients of SOM with mild to moderate orbital disease were recruited in the study. In the intervention group, 23/26 (885%) eyes had stable orbital disease at the end of treatment (4-6 weeks). No deterioration in visual acuity was noted as a result of treatment. In 8/26 (30.77%) patients, inflammation was noted as a side effect of IOAB requiring temporary discontinuation of injections. The mean follow-up for cases was 14.2 months (range 12-15 months). 1/23 (4.35%) patients had relapse of orbital disease at 3 months. Twenty-one patients are alive on last follow-up. Of the patients who refused treatment (controls), 2/9 (22.22%) patients relapsed. One of these patients with relapse underwent exenteration, while the other was managed with IOAB. At a follow-up of 14 months (range 12-15 months), eight patients are alive. On evaluating the ocular parameters in salvaged eyes, improvement in extraocular movements was noted in 75-80% cases. The degree of proptosis and resistance to retropulsion did not change significantly. CONCLUSION: In the current study, an improvement in the globe salvage rates was noted in cases of SOM with mild to moderate orbital disease treated with adjunctive IOAB as compared to controls at a mean follow-up of 14 months, although it did not achieve statistical significance. The study supports the inclusion of IOAB in routine management of mild to moderate orbital disease.


Subject(s)
Amphotericin B , Antifungal Agents , Eye Infections, Fungal , Mucormycosis , Orbital Diseases , Humans , Mucormycosis/diagnosis , Mucormycosis/drug therapy , Mucormycosis/therapy , Mucormycosis/epidemiology , Male , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/drug therapy , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Prospective Studies , Female , Orbital Diseases/microbiology , Orbital Diseases/therapy , Orbital Diseases/diagnosis , Adult , Middle Aged , Antifungal Agents/therapeutic use , Amphotericin B/therapeutic use , COVID-19/epidemiology , COVID-19/complications , SARS-CoV-2 , Follow-Up Studies , Young Adult , Visual Acuity , Debridement/methods , Aged , Adolescent , Treatment Outcome , Orbit
3.
BMJ Open Ophthalmol ; 9(1)2024 Sep 16.
Article in English | MEDLINE | ID: mdl-39284677

ABSTRACT

OBJECTIVE: Microsporidial stromal keratitis (MSK) is an uncommon disease. Only several case series have been reported. We aimed to describe the clinical manifestations, histopathology and treatment outcomes of MSK. METHODS AND ANALYSIS: Retrospective data of MSK diagnosed between January 2009 and December 2020 at the King Chulalongkorn Memorial Hospital, Bangkok, Thailand were retrieved. The diagnosis was made based on corneal scraping, corneal biopsy and corneal button histopathology findings. Detailed clinical characteristics, histopathological findings and treatment outcomes were reviewed and analysed. RESULTS: 21 patients with MSK with a mean age of 63.8 years (SD 12.2) had an indolent disease onset with a median of 9 months (IQR 2.2-12.0). Five patients (23.8%) experienced ocular traumas. Herpes stromal keratitis was the most common preliminary diagnosis (33.3%), followed by non-specific ulcers and fungal keratitis. The most common corneal finding was multifocal grey-white lesions with anterior to mid-stromal infiltration and fluffy borders (66.7%). Pathogens were identified by modified trichrome staining of corneal scrapings in 11 of 14 cases (78.6%). Histopathological examination showed positive Ziehl-Neelsen staining in 17 of 19 cases (89.5%). All patients received surgical treatment, with 18 receiving therapeutic penetrating keratoplasty (TPK), 2 undergoing deep anterior lamellar keratoplasty and 1 undergoing femtosecond laser-assisted anterior lamellar keratoplasty. The overall cure rate was 76.2% after the first surgery and 95.2% after the second surgery. CONCLUSION: MSK can be easily underdiagnosed. Clues to diagnosis included a history of chronic refractory stromal infiltration and typical corneal findings of deep stromal infiltration, without epithelial defects. TPK is the preferred treatment for MSK.


Subject(s)
Corneal Stroma , Eye Infections, Fungal , Keratitis , Microscopy, Confocal , Microsporidiosis , Humans , Retrospective Studies , Male , Middle Aged , Female , Eye Infections, Fungal/pathology , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/therapy , Eye Infections, Fungal/diagnosis , Microsporidiosis/pathology , Microsporidiosis/surgery , Corneal Stroma/pathology , Corneal Stroma/microbiology , Corneal Stroma/surgery , Aged , Keratitis/microbiology , Keratitis/pathology , Keratitis/diagnosis , Keratitis/therapy , Antifungal Agents/therapeutic use , Treatment Outcome , Adult , Corneal Transplantation , Thailand/epidemiology , Biopsy
4.
Cornea ; 43(9): 1065-1071, 2024 Sep 01.
Article in English | MEDLINE | ID: mdl-39102310

ABSTRACT

ABSTRACT: Keratomycosis is a serious corneal infection associated with high ocular morbidity that can lead to severe vision loss. It is estimated to affect more than 1 million patients annually, most commonly occurring in tropical climates, and represents a growing threat to patients worldwide. Despite aggressive medical management, fungal infections have a higher rate of perforation requiring surgical intervention compared with other infectious etiologies. Early diagnosis and appropriate treatment are keys to preserving vision and saving patients' eyes.Timely diagnosis of fungal keratitis helps minimize corneal damage and scarring and increases the likelihood of a favorable outcome. Studies have shown that correct identification of fungal infections is often delayed up to 2 to 3 weeks after initial presentation. This leads to incorrect or ineffective treatment for many patients. Diagnostic techniques explored in this study include corneal scrapings with staining and culture, visualization with in vivo confocal microscopy, molecular diagnostic techniques including polymerase chain reaction, and recently developed omics-based technologies.Treatment of fungal keratitis begins with topical antifungals. Medical management has been proven to be effective, but with limitations including poor drug penetration and low bioavailability. Cases that do not respond to topical therapy require more invasive and novel treatments to control the infection. We review the clinical trials that have shaped current practice patterns, with focus on the efficacy of topical natamycin as the primary therapy for filamentous fungal keratitis. We explore additional management strategies such as localized intrastromal and intracameral injections of antifungal medications, photodynamic therapy, and surgical intervention.


Subject(s)
Antifungal Agents , Eye Infections, Fungal , Keratitis , Humans , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/drug therapy , Eye Infections, Fungal/therapy , Antifungal Agents/therapeutic use , Keratitis/diagnosis , Keratitis/microbiology , Keratitis/drug therapy , Microscopy, Confocal
5.
Indian J Ophthalmol ; 72(8): 1130-1135, 2024 Aug 01.
Article in English | MEDLINE | ID: mdl-39078956

ABSTRACT

PURPOSE: To study the risk factors, clinical features, and treatment outcomes of patients with culture-negative keratitis (CNK). METHODS: A retrospective data review of 933 patients with CNK was performed from January 2018 to December 2020. The variables such as the history of injury, visual acuity, slit-lamp findings with measurements of size and depth of ulcer, microbiological evaluation, duct patency, blood glucose levels, and treatment were considered, and clinical outcome was analyzed. RESULTS: Of the 933 patients with CNK, 763 (81.8%) were medically managed, with a mean treatment duration of 2.08 ± 1.7 weeks. Among them, 622 (66.7%) were both smear and culture-negative, and 311 (33.3%) showed only smear positivity. Smear-positive patients showed a positive correlation with the history of injury. A higher incidence of fungal growth on repeat culture was observed. Surgical interventions were done only in 18.2% of the patients; the rest were treated with topical medications alone. CONCLUSION: High clinical suspicion, differentiation of causative organisms based on clinical findings, and initiating empirical therapy with broad-spectrum antibiotics and antifungals improve the ultimate prognosis in patients with CNK, even though a standard protocol for empirical medical treatment may differ among institutions and surgeons based on their clinical experience and geographical variations.


Subject(s)
Anti-Bacterial Agents , Eye Infections, Bacterial , Eye Infections, Fungal , Visual Acuity , Humans , Retrospective Studies , Female , Male , Eye Infections, Bacterial/microbiology , Eye Infections, Bacterial/diagnosis , Eye Infections, Bacterial/drug therapy , Middle Aged , Visual Acuity/physiology , Adult , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/drug therapy , Eye Infections, Fungal/therapy , Anti-Bacterial Agents/therapeutic use , Bacteria/isolation & purification , Antifungal Agents/therapeutic use , Keratitis/microbiology , Keratitis/diagnosis , Keratitis/drug therapy , Risk Factors , Follow-Up Studies , Fungi/isolation & purification , Cornea/microbiology , Cornea/pathology , Aged
6.
Int Ophthalmol ; 44(1): 205, 2024 Apr 27.
Article in English | MEDLINE | ID: mdl-38676784

ABSTRACT

PURPOSE: Microbial keratitis is a sight-threatening condition with a higher incidence in agrarian populations. In countries with a high indigent population, due to financial and other constraints, patients prefer to seek therapy locally rather than travel to advanced centres. The aim of this study is to describe the epidemiology, clinical characteristics, and outcomes of 60 consecutive patients with microbial keratitis managed at a rural centre. METHODS: Descriptive case series. All patients clinically diagnosed with infectious keratitis were included. Corneal scrapings were obtained and microbiological identification was done by Gram stain. Anti-microbial therapy was commenced based on smear findings and the patients were followed up till disease resolution. RESULTS: Sixty eyes of 60 patients were diagnosed with microbial keratitis in the study period. The mean age was 47.43 ± 18.69 years. Male:female ratio was 47:53. Risk factors included ocular trauma in the majority of patients (46/60; 76.7%). Microorganisms were identified on 75.6% of smears, with fungal filaments (65.4%) being the most common. Ulcers were central in over half (32/60; 53.3%), and > 3 mm in diameter in over three-fourths (81.6%) of patients. Forty-four patients (73.3%) achieved treatment success whereas 16/60 (26.6%) required referral to our tertiary-eye care facility for management. The median time to resolution was 14 days (IQR 10-26 days). CONCLUSION: Our series demonstrates the feasibility of microbiology-guided therapy in microbial keratitis by ophthalmologists at the secondary rural eye-care level. Two-thirds of the patients could be successfully managed at the rural centre and only severe cases needed a referral to tertiary centres.


Subject(s)
Eye Infections, Bacterial , Rural Population , Humans , Male , Female , Middle Aged , Adult , Eye Infections, Bacterial/epidemiology , Eye Infections, Bacterial/microbiology , Eye Infections, Bacterial/diagnosis , Eye Infections, Bacterial/therapy , Aged , India/epidemiology , Rural Population/statistics & numerical data , Keratitis/epidemiology , Keratitis/microbiology , Keratitis/diagnosis , Young Adult , Anti-Bacterial Agents/therapeutic use , Adolescent , Corneal Ulcer/microbiology , Corneal Ulcer/epidemiology , Corneal Ulcer/diagnosis , Corneal Ulcer/drug therapy , Corneal Ulcer/therapy , Incidence , Eye Infections, Fungal/epidemiology , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Eye Infections, Fungal/drug therapy , Risk Factors , Bacteria/isolation & purification
8.
J Fr Ophtalmol ; 46(5): 461-467, 2023 May.
Article in English | MEDLINE | ID: mdl-36890074

ABSTRACT

PURPOSE: To describe cases of endogenous fungal endophthalmitis (EFE) post-recovery from or hospitalization for coronavirus disease 2019 (COVID-19). METHODS: This prospective audit involved patients with suspected endophthalmitis referred to a tertiary eye care center over a one-year period. Comprehensive ocular examinations, laboratory studies, and imaging were performed. Confirmed cases of EFE with a recent history of COVID-19 hospitalization±intensive care unit admission were identified, documented, managed, followed up, and described. RESULTS: Seven eyes of six patients were reported; 5/6 were male, and the mean age was 55. The mean duration of hospitalization for COVID-19 was approximately 28 days (14-45); the mean time from discharge to onset of visual symptoms was 22 days (0-35). All patients had underlying conditions (5/6 hypertension; 3/6 diabetes mellitus; 2/6 asthma) and had received dexamethasone and remdesivir during their COVID-related hospitalization. All presented with decreased vision, and 4/6 complained of floaters. Baseline visual acuity ranged from light perception (LP) to counting fingers (CF). The fundus was not visible in 3 out of 7 eyes; the other 4 had "creamy-white fluffy lesions" at the posterior pole as well as significant vitritis. Vitreous taps were positive for Candida species in six and Aspergillus species in one eye. Anti-fungal treatment included intravenous amphotericin B followed by oral voriconazole and intravitreal amphotericin B. Three eyes underwent vitrectomy; the systemic health of two patients precluded surgery. One patient (with aspergillosis) died; the others were followed for 7-10 months - the final visual outcome improved from CF to 20/200-20/50 in 4 eyes and worsened (hand motion to LP) or did not change (LP), in two others. CONCLUSION: Ophthalmologists should maintain a high index of clinical suspicion for EFE in cases with visual symptoms and a history of recent COVID-19 hospitalization and/or systemic corticosteroid use - even without other well-known risk factors.


Subject(s)
Amphotericin B , COVID-19 , Endophthalmitis , Eye Infections, Fungal , Vitrectomy , Voriconazole , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/epidemiology , Eye Infections, Fungal/therapy , COVID-19/complications , COVID-19/epidemiology , Endophthalmitis/diagnosis , Endophthalmitis/epidemiology , Endophthalmitis/etiology , Humans , Hospitalization , Amphotericin B/therapeutic use , Voriconazole/therapeutic use , Treatment Outcome , Prospective Studies , Male , Female , Adult , Middle Aged
9.
Indian J Ophthalmol ; 71(2): 510-514, 2023 02.
Article in English | MEDLINE | ID: mdl-36727350

ABSTRACT

Purpose: To evaluate the knowledge and skills of clinicians in differentiating cases of Pythium from fungal keratitis based on their clinical appearance. Methods: Thirty slit-lamp photographs from culture-proven cases of Pythium and fungal keratitis were selected for conducting a prospective online-based photographic survey. The participants were asked to identify the causative organism and enlist the specific clinical features which helped in reaching the diagnosis. Both cornea specialists and clinical fellows/trainees participated in the survey. Sensitivity, specificity, and predictive values were estimated, and the factors associated with these, including the identification rates of clinical signs, were evaluated using bivariate and multivariate linear regression analyses. The identification rates between the consultants and fellows were compared. Results: A total of 42 cornea specialists (28 consultants and 14 clinical fellows) participated in the survey. Clinicians were able to differentiate Pythium from fungal etiology in only 56% of cases. The differentiating ability between the consultants and fellows was statistically insignificant. Average sensitivity, specificity, and positive and negative predictive values for differentiating Pythium from fungus were 56%, 65%, 56%, and 66%, respectively. The specific clinical features enlisted by the participants to differentiate Pythium from fungus were the presence of tentacles, peripheral guttering, dot-like infiltrates, and elevated plaques. Conclusion: Clinical knowledge regarding the signs and symptoms and the microbiological identification of features for Pythium are still lacking among clinicians. As the treatment protocols are distinctly different for both, it is imperative to enhance the knowledge and diagnosing ability to tackle this emerging microorganism which causes high morbidity.


Subject(s)
Corneal Ulcer , Eye Infections, Fungal , Keratitis , Pythiosis , Pythium , Animals , Humans , Prospective Studies , Pythiosis/diagnosis , Pythiosis/therapy , Keratitis/microbiology , Corneal Ulcer/microbiology , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Fungi
10.
Eur Arch Otorhinolaryngol ; 280(2): 819-827, 2023 Feb.
Article in English | MEDLINE | ID: mdl-36053359

ABSTRACT

BACKGROUND: Rhino-orbital-cerebral mucor mycosis (ROCM) is a relatively rare opportunistic infection caused by the Mucorales species. While ROCM suggests involvement of the paranasal sinuses, orbit and brain ROM (rhino-orbital-Mucormycosis) stands for the fungal invasion in sinuses and orbit sans cerebral involvement. In India with the outbreak of the second COVID wave and the delta variant of the virus, there has been a steep increase in this opportunistic fulminant fungal infection, named COVID-associated Mucor mycosis (CAM). The most critical question in orbital management is when to go ahead with an exenteration. Our study aims to design a pertinent minimal invasive surgical protocol for surgeons to manage such cases based on our surgical experience and mitigate the need for exenteration and save the eyes wherever possible. METHODS: The study is a retrospective analysis of patients of ROM with and without brain involvement, who underwent minimal surgical management between March 2021 to March 2022 along with their follow-up. RESULTS: There were 184 eyes of 148 patients diagnosed with CAM. The mean age was 51.7 years with a male predominance of 103 (70%). All patients developed ROM following the COVID-19 infection and the duration between diagnosis of COVID-19 and ROM was 36 ± 23 days. 18 cases (12%) were bilateral. 76 eyes (41%) had no vision at the presentation. Imaging revealed paranasal sinus involvement (100%), orbital apex involvement (61%), cavernous sinus involvement (53%), and central nervous system (CNS) involvement (47%). All the patients (100%) were treated with systemic Liposomal amphotericin-B and sinus debridement. Endoscopic debridement of the orbital disease was performed in 45 (30.4%) cases, 15(8.1%) eyes underwent exenteration and were later rehabilitated with a customized ocular prosthesis, 103 (56%) eyes underwent transcutaneous retrobulbar amphotericin-B. At a mean follow-up of 13.1 months; the complete resolution was seen in 25 (17%) cases, the residual stable lesion was seen in 77(52%) of the cases and new lesions were developed in 13(9%) of the cases. Mortality was seen in 33 (22%) patients and all of them had CNS involvement. CONCLUSIONS: Systemic and protocol-based management can save the life and salvage the eyes.


Subject(s)
COVID-19 , Eye Infections, Fungal , Mucormycosis , Orbital Diseases , Humans , Male , Middle Aged , Female , Amphotericin B/therapeutic use , Mucormycosis/complications , Mucormycosis/therapy , Mucormycosis/diagnosis , Antifungal Agents/therapeutic use , Retrospective Studies , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/therapy , COVID-19/complications , SARS-CoV-2 , Orbital Diseases/etiology , Orbital Diseases/therapy , Orbital Diseases/diagnosis
11.
Nepal J Ophthalmol ; 15(30): 108-115, 2023 Jul.
Article in English | MEDLINE | ID: mdl-38976344

ABSTRACT

BACKGROUND: Rhino-orbital-cerebral mucormycosis (ROCM) is a rare, opportunistic, angio-invasive, and fatal infection caused by mold fungi of the genera Rhizopus, Mucor, and Rhizomucor. The global incidence of ROCM is 0.005-1.7 per million, with a fatality rate of 46%. Early diagnosis and treatment are crucial for this disease, as a delay of one week can increase the mortality rate to 66%. CASE: A 32-year-old male, a known case of coronavirus disease 2019 (COVID-19) for the past 15 days from Janakpur, Dhanusha, Nepal presented to the emergency department of Dhulikhel Hospital with a sudden onset of blurred vision in the left eye, left-sided ocular pain, and nasal bleeding for the last three days. OBSERVATIONS: The patient was suspected of post-COVID-19 mucormycosis, and a nasal swab for potassium hydroxide (KOH) mount showed hyphae in microscopy. Intravenous and retrobulbar liposomal amphotericin B were administered as medical therapy, along with surgical debridement. A multidisciplinary approach was necessary for the treatment. CONCLUSION: A long-term, multimodal treatment approach involving combined antifungal drug therapy (intravenous liposomal amphotericin B and retrobulbar amphotericin B), and timely surgical debridement leads to an improvement in both short-term and long-term outcomes.


Subject(s)
Antifungal Agents , COVID-19 , Eye Infections, Fungal , Mucormycosis , Orbital Diseases , SARS-CoV-2 , Humans , Mucormycosis/diagnosis , Mucormycosis/therapy , Male , COVID-19/complications , COVID-19/diagnosis , Adult , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/therapy , Eye Infections, Fungal/drug therapy , Antifungal Agents/therapeutic use , Orbital Diseases/diagnosis , Orbital Diseases/microbiology , Orbital Diseases/therapy , Amphotericin B/therapeutic use , Nepal , Nose Diseases/microbiology , Nose Diseases/diagnosis , Nose Diseases/therapy
12.
Indian J Ophthalmol ; 70(10): 3522-3527, 2022 10.
Article in English | MEDLINE | ID: mdl-36190039

ABSTRACT

Purpose: To study the risk factors, clinical presentation, management options, and outcomes in cases of culture-proven Acremonium keratitis. Methods: Medical and microbiology records of culture-proven Acremonium keratitis from Jan 2007 to Dec 2019 at a tertiary eye care center were reviewed. Details of clinical findings on each visit and operating notes were reviewed from the medical records. All cases were subjected to corneal scraping at the first visit for microbiological investigation consisting of direct smear examination and culture. Topical natamycin 5% was the mainstay of medical treatment. Surgical treatment was considered for nonresponding patients. Results: During the 13-year study period, 65 cases of culture-proven Acremonium keratitis were identified out of 1605 cases of fungal keratitis. Trauma was the most common predisposing factor in 32 cases (49.2%). The average area of the corneal stromal infiltrate was 24.8 mm2 at the initial presentation. Hypopyon at the time of presentation was evident in 28 (43.1%) cases. Staphylococcus spp. was the most common (n = 22, 33.8%) organism coexistent with Acremonium. Direct microscopy of corneal scraping was positive for fungal filaments in 57/65 (87.6%) cases. Medical management alone was given in 44 patients (67.6%). Age (>50 years) and treatment delay (>15 days) were found to be independent risk factors for the poor final visual outcome (VA <20/60). Conclusion: When treated early, Acremonium keratitis responds well to medical therapy with currently available topical antifungals. However, advanced and nonresponding cases require surgical intervention for resolution of the infection.


Subject(s)
Acremonium , Corneal Diseases , Eye Infections, Fungal , Keratitis , Antifungal Agents/therapeutic use , Corneal Diseases/drug therapy , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/epidemiology , Eye Infections, Fungal/therapy , Humans , Keratitis/diagnosis , Keratitis/epidemiology , Keratitis/therapy , Middle Aged , Natamycin/therapeutic use , Retrospective Studies , Risk Factors
13.
Klin Monbl Augenheilkd ; 239(7): 867-875, 2022 Jul.
Article in German | MEDLINE | ID: mdl-35858597

ABSTRACT

Endophthalmitis is one of the most severe ophthalmic emergencies. Most patients experience a permanent decrease in visual acuity after the event, but the eye can be preserved in most cases. However, when the eye is enucleated after endophthalmitis, ophthalmopathologic investigation of the globe with respect to the clinical history can provide valuable information regarding the ultimately frustrating course of the disease that can be helpful for the treatment of future patients. Often, valuable aspects also emerge with regard to the therapeutic approach. For example, in therapy-resistant fungal endophthalmitis the necessity of penetrating keratoplasty with a large graft diameter and possibly even removal of the lens including the capsular bag should be stressed. In the following, five enucleated eyes with a different spectrum of endophthalmitis, as well as different potential pathways of exogenous and endogenous endophthalmitis, are illustrated clinically and ophthalmopathologically. In summary, endophthalmitis requires urgent intervention; however, various differential diagnoses must be excluded. Histopathologic examination of enucleated eyes is helpful for understanding the course of the disease and may also have forensic significance.


Subject(s)
Endophthalmitis , Eye Infections, Fungal , Anti-Bacterial Agents/therapeutic use , Endophthalmitis/drug therapy , Endophthalmitis/therapy , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Humans , Keratoplasty, Penetrating , Retrospective Studies , Visual Acuity
14.
Int Ophthalmol ; 42(10): 3027-3035, 2022 Oct.
Article in English | MEDLINE | ID: mdl-35362809

ABSTRACT

PURPOSE: To report the spectrum of keratitis treated within 3 months of acute COVID-19 infection. METHODS: Retrospective, descriptive case series study of 19 eyes of 16 patients who presented at tertiary eye care centre in Southern India. RESULTS: Median age of the patients was 43(IQR 35-55.5) years. Majority (15/16, 93.75%) were males. Unilateral affliction was predominant (13/16, 81.25% patients). Nine had a history of hospitalization, five had received oxygen supplementation and five had been treated with steroids during COVID-19 illness. The median duration between COVID-19 diagnosis and the ocular symptoms in the eye was 29 (IQR 22-57) days. Microbiological diagnosis consisted of microsporidia in nine eyes of seven patients, fungus in six patients, Pythium in one patient, and herpes zoster ophthalmicus in one patient. One patient had neurotrophic keratitis. Therapeutic penetrating keratoplasty was performed in five patients, glue application in two patients and three were managed with tarsorrhaphy with/without amniotic membrane grafting or tenonplasty. There was medical and surgical cure in all patients. CONCLUSIONS: Microsporidia was the commonest cause of keratitis, followed by fungal infection. Majority of the microsporidia infections were keratoconjunctivitis. The fungal isolates identified were Aspergillus and Mucor species. All patients responded to conventional management guidelines with favourable outcomes.


Subject(s)
COVID-19 , Eye Infections, Fungal , Keratitis , Adult , COVID-19/therapy , COVID-19 Testing , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/epidemiology , Eye Infections, Fungal/therapy , Female , Humans , Keratitis/diagnosis , Keratitis/epidemiology , Keratitis/therapy , Keratoplasty, Penetrating , Male , Middle Aged , Retrospective Studies , Tertiary Healthcare
16.
Int Ophthalmol ; 42(5): 1401-1407, 2022 May.
Article in English | MEDLINE | ID: mdl-34839447

ABSTRACT

PURPOSE: The purpose of the study is to determine the microbiological etiology, epidemiological factors, and clinical profile and treatment outcomes of infective keratitis in Ophthalmology department, Minia University, Egypt. METHODS: Prospective, nonrandomized, observational clinical series of cases, including 150 patients with mean age 30 (range 12 to 85 years), 90 patients (60%) were males and 60 (40%) were females, clinically diagnosed as infective corneal ulcer, attending the Ophthalmology Department-Faculty of Medicine. Minia University, Minia, Egypt. From December 2018 to December 2020. Detailed history taking and all clinical findings were collected. Corneal scrapings were obtained from patients and subjected to staining and culture for bacterial and fungal pathogens; Bacterial and fungal growth were identified by standard laboratory procedures. RESULTS: Corneal trauma by a vegetative matter was the commonest risk factor associated with infective keratitis in 92 cases (61.3%). Smear and culture was positive in 83 cases (58.4%) of 142 corneal scrapings obtained, of which 60 cases were fungal (72.3%), 21 cases were bacterial (25.3%) and two cases were mixed bacterial and fungal (2.4%), Aspergillus species was the commonest fungal species isolated in fungal keratitis. One hundred forty-two cases (94.67%) healed completely with scar. Only six cases (4%) required evisceration due to aggressive presentation from the start and keratoplasty was performed for two cases (1.33%). CONCLUSIONS: Fungal keratitis was the commonest type in cases attending to our department. Adequate diagnosis, management and follow-up helped in achieving high successful curative outcomes. CLINICAL TRIAL NUMBER: Clinical Trials.gov ID: NCT04894630. Time of registration 1 December 2018.


Subject(s)
Corneal Ulcer , Eye Infections, Fungal , Keratitis , Adolescent , Adult , Aged , Aged, 80 and over , Bacteria , Child , Corneal Ulcer/diagnosis , Corneal Ulcer/epidemiology , Corneal Ulcer/therapy , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/epidemiology , Eye Infections, Fungal/therapy , Female , Humans , Keratitis/diagnosis , Keratitis/epidemiology , Keratitis/therapy , Male , Middle Aged , Prospective Studies , Retrospective Studies , Treatment Outcome , Young Adult
17.
Eye Contact Lens ; 48(2): 95-97, 2022 Feb 01.
Article in English | MEDLINE | ID: mdl-34775455

ABSTRACT

ABSTRACT: There are very few published cases of total anterior staphyloma, all of which have been reported as secondary to fungal keratitis. This study reports the clinical and histopathological findings and subsequent management of a 27-year-old healthy female patient who developed total anterior staphyloma after poor compliance with treatment for clinically diagnosed acanthamoeba keratitis. She underwent a successful evisceration with good long-term results. This case highlights that total anterior staphyloma may also result from untreated keratitis which is not fungal in origin. In cases of fungal and acanthamoeba keratitis, patient compliance with both treatment and follow-up is paramount to avoid vision-threatening sequelae that present significant challenges in their management.


Subject(s)
Acanthamoeba Keratitis , Corneal Ulcer , Eye Infections, Fungal , Acanthamoeba Keratitis/complications , Acanthamoeba Keratitis/diagnosis , Adult , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/therapy , Female , Fungi , Humans
18.
Surv Ophthalmol ; 67(3): 758-769, 2022.
Article in English | MEDLINE | ID: mdl-34425126

ABSTRACT

Fungal corneal ulcers are an uncommon, yet challenging, cause of vision loss. In the United States, geographic location appears to dictate not only the incidence of fungal ulcers, but also the fungal genera most encountered. These patterns of infection can be linked to environmental factors and individual characteristics of fungal organisms. Successful management of fungal ulcers is dependent on an early diagnosis. New diagnostic modalities like confocal microscopy and polymerase chain reaction are being increasingly used to detect and identify infectious organisms. Several novel therapies, including crosslinking and light therapy, are currently being tested as alternatives to conventional antifungal medications. We explore the biology of Candida, Fusarium, and Aspergillus, the three most common genera of fungi causing corneal ulcers in the United States and discuss current treatment regimens for the management of fungal keratitis.


Subject(s)
Corneal Ulcer , Eye Infections, Fungal , Keratitis , Antifungal Agents/therapeutic use , Corneal Ulcer/drug therapy , Corneal Ulcer/therapy , Eye Infections, Fungal/drug therapy , Eye Infections, Fungal/therapy , Humans , Keratitis/drug therapy , Keratitis/therapy , Ulcer/drug therapy
19.
Semin Ophthalmol ; 37(1): 123-128, 2022 Jan 02.
Article in English | MEDLINE | ID: mdl-34264788

ABSTRACT

OBJECTIVE: To report the clinical features and management outcomes of mixed fungal and bacterial endophthalmitis. METHODS: Retrospective, consecutive non-comparative case series. Fifteen eyes of 15 patients were included from January 2009 to December 2019 with culture proven mixed fungal and bacterial endophthalmitis. Demography, clinical presentations, interventions received, and final visual and anatomical outcomes were noted. A favorable anatomic outcome was defined as preservation of the globe, absence of hypotony, attached retina, and absence of active inflammation at the last visit. RESULTS: The mean age of patients in this series was 34.2 ± 19.6 years (range: 5-61 years). Male preponderance was found in 14 (93.3%). Eight (53.3%) eyes had open globe injury, 5(33.3%) had postoperative endophthalmitis and one (6.6%) each with endogenous endophthalmitis and post-keratitis. Pars plana vitrectomy was done in eight (53.3%) eyes whereas vitreous tap alone was done in seven (46.7%) eyes. Gram positive cocci (n = 11, 73.3%) were the commonest bacterial isolates (n = 7, 46.6%). Staphylococcus aureus (n = 3, 20%) was the most common bacterial isolate. The commonest fungi were filamentous hyaline fungi (n = 5, 33.3%). An unfavorable visual outcome (VA<20/400) was seen in all the eyes. The mean duration of follow-up was 13 ± 18.3 months. Globe salvage was possible only in five (33.3%) eyes. The bacterial isolates were highly sensitive to all of the tested antibiotics. CONCLUSION: Mixed fungal and bacterial endophthalmitis occur commonly in a setting of open-globe trauma. The presence of fungus concurrently leads to a very poor management outcome even if the bacterial isolate sensitivity is good.


Subject(s)
Endophthalmitis , Eye Infections, Bacterial , Eye Infections, Fungal , Adolescent , Adult , Anti-Bacterial Agents/therapeutic use , Child , Child, Preschool , Endophthalmitis/diagnosis , Endophthalmitis/epidemiology , Endophthalmitis/therapy , Eye Infections, Bacterial/diagnosis , Eye Infections, Bacterial/epidemiology , Eye Infections, Bacterial/therapy , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/epidemiology , Eye Infections, Fungal/therapy , Humans , Male , Middle Aged , Retrospective Studies , Visual Acuity , Vitrectomy , Young Adult
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