|Year : 2020 | Volume
| Issue : 1 | Page : 43-45
Acremonium keratitis in a patient with healed herpetic eye disease
Rashmeet Arora, Sarita Agrawal, Darshani Marya, Neel Shah, Santosh Kengua
Department of Ophthalmology, Santosh Medical College, Ghaziabad, Uttar Pradesh, India
|Date of Submission||02-Apr-2019|
|Date of Decision||17-Oct-2019|
|Date of Acceptance||19-Nov-2019|
|Date of Web Publication||6-Mar-2020|
Department of Ophthalmology, Santosh Medical College, Gaziabad, Uttar Pradesh
Source of Support: None, Conflict of Interest: None
We report the case of a 65-year-old male who presented with pain, diminution of vision, redness foreign-body sensation, and watering for 1 month. The patient was a known case of bronchial asthma and was on inhalational budesonide treatment for 3 years. The patient had cataract surgery 18 months back and has a history of herpetic eye disease. Corneal cultures were positive for acremonium.
Keywords: Acremonium, herpetic eye disease, keratitis
|How to cite this article:|
Arora R, Agrawal S, Marya D, Shah N, Kengua S. Acremonium keratitis in a patient with healed herpetic eye disease. J Clin Ophthalmol Res 2020;8:43-5
|How to cite this URL:|
Arora R, Agrawal S, Marya D, Shah N, Kengua S. Acremonium keratitis in a patient with healed herpetic eye disease. J Clin Ophthalmol Res [serial online] 2020 [cited 2020 Jul 9];8:43-5. Available from: http://www.jcor.in/text.asp?2020/8/1/43/280211
Fungi causing keratitis are relatively less common as compared to bacteria; it usually follows contact with vegetative matter, prolonged contact lens wear, topical or systemic corticosteroid uses, uncontrolled diabetes, and immunosuppression., Acremonium keratitis has also been reported after the laser-assistedin situ keratomileusis procedure.
Acremonium are filamentous fungi usually found in soil and dead plants. They appear as hyaline, septate fungal elements with branched hyphae. The genus acremonium contains several species, but only a few are pathogenic to humans. Although acremonium species are opportunistic pathogens, they do not usually cause corneal ulcers. Etiologically, fungal keratitis exhibits a geographical variation with fusarium being the most common species in America and aspergillus species in the subcontinent. Acremonium keratitis following herpetic eye disease has rarely been reported.
| Case Report|| |
A 65-year-old male presented to the outpatient department with pain, redness, watering, and diminution of vision for 1 month. The patient's medical history revealed bronchial asthma for which he was on inhalational budesonide therapy. He had herpetic eye disease 3 years back and cataract surgery with intraocular lens implantation 1 year later. Slit-lamp examination revealed conjunctival hyperemia and eccentric corneal ulcer (about 3 mm in diameter) with satellite lesions and hypopyon in the dependent part [Figure 1]. Adjacent to the ulcer was deep stromal infiltrates which did not stain with fluorescein.
The base of the ulcer was scraped under aseptic conditions, and the material obtained was subjected to gram and potassium hydroxide (KOH) staining. Simultaneously, the scraped material was also inoculated into blood, MacConkey, and Sabouraud agar plates for culture, respectively. Corneal scrapings revealed fungal hyphae on KOH mount and fungal elements on Gram stain. Awaiting culture results, empirical therapy consisting of topical 1% natamycin hourly, 0.5% moxifloxacin hourly, and oral fluconazole 150 mg twice daily was initiated. However, no reduction in the size of ulcer and improvement of symptoms were seen at 1 week. Acremonium colony was seen on Sabouraud agar after 7 days [Figure 2]. The lactophenol blue mount revealed septate hyphae with tapered phialides and intermingled concentric conidia [Figure 3]. Topical therapy with 1% voriconazole was initiated and oral fluconazole 150 mg twice daily was reintroduced for 5 days. There was a significant reduction in size of the infiltrate at 2 weeks with the disappearance of hypopyon. At 2 months, there was a complete resolution of infiltrate with the development of corneal scar [Figure 4]. There was no recurrence at 4 months follow-up.
|Figure 3: Lactophenol cotton blue mount with numerous concentric conidia|
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|Figure 4: Corneal scar after successful treatment of acremonium keratitis|
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| Discussion|| |
Acremonium rarely causes fungal keratitis as compared to aspergillus, fusarium, and candida species. It usually follows corneal trauma, although there was no history of trauma in the present case report. Fincher et al. reported 17 cases of acremonium keratitis over 26 years, of which 71% had a history of trauma. Having said this, the patient in the present report had herpetic eye disease previously and was on budesonide therapy for asthma, both of which may be predisposing factors for opportunistic pathogens. Rosa et al. found corticosteroids to be an important risk factor for fungal infections. Herpetic eye disease appears to be an unusual predisposing risk factor for fungal keratitis. Acremonium keratitis following herpetic eye disease has only been reported once. The probable explanation for keratitis following viral infections appears to be neurotrophic changes secondary to the destruction of corneal nerves increasing susceptibility to trivial trauma/colonization.
The genus acremonium had several species; however, only a few have been found to be pathogenic to humans. The identification of species of genus acremonium is difficult as they resemble morphologically. We could not identify the acremonium species in our laboratory. The treatment of keratitis due to acremonium can be challenging due to the lack of a standard protocol. Amphotericin B, fluconazole, voriconazole, and natamycin have been used in different studies with variable response. Results have been more encouraging with natamycin and voriconazole. Large fungal corneal ulcers may require surgical intervention in addition to medical therapy. In the present case, however, resolution without recurrence was observed with medical therapy. In conclusion, acremonium species is a rare cause of corneal ulcer. Predisposing ocular conditions, including trauma and herpetic eye disease, may play a critical role in corneal ulcers due to acremonium.
Declaration of patient consent
The authors certify that they have obtained all appropriate patient consent forms. In the form the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4]