Successful Treatment of Ophthalmomyiasis Interna Posterior With Ivermectin

Taba, Katia Emiko; Vanchiere, John A.; Kavanaugh, A Scott; Lusk, Jeffrey D; Smith, Melanie B

doi:10.1097/icb.0b013e318208859c

Cited by 14 publications

(11 citation statements)

References 7 publications

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“…Dead larvae in the vitreous cavity were also detected as they might not get a chance to escape for pupation. Various other researchers also reported cases of ophthalmomyiasis interna (Buettner 2002;Edelmann et al 2014;Georgalas et al 2011;Gozum et al 2003;Khoumiri et al 2008;Lagace-Wiens et al 2008;Ollivier et al 2006;Saraiva et al 2006;Sharifipour and Feghhi 2008;Taba et al 2012). A rare case of secondary myiasis of ocular infestation by C. bezziana was reported in a 55-year-old female from Iran which involved significant destruction of the eyeball (Berenji et al 2015).…”

Section: Ophthalmomyiasis Internamentioning

confidence: 85%

Incidence of myiasis among humans—a review

Singh

2015

Parasitol Res

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Myiasis, the infestation of tissues of live humans and other vertebrate animals with dipteran larvae (maggots), is a phenomenon of widespread occurrence throughout the tropical regions of the world. It is commonly seen in domestic and wild animals but occurs rarely in man also. The tissue invasion in man by maggots is generally a well-recognized complication of neglected wounds. The condition may be asymptomatic but occasionally results in more or less severe problems and even death when larvae invade body cavities or areas that forbid their direct visual examination. Many cases of myiasis, however, usually do not reach the attention of medical practitioners because of the tendency of the mature larvae to migrate out of the lesion for pupation. In the present study, the authors reviewed the past literature describing the cases of human myiasis, causative fly species and predisposing factors for the onset of the same. The aim of the present manuscript is to provide a database for the future reference of medical entomologists, medical practitioners and veterinarians. Review of literature revealed that 37 fly species belonging to ten families were responsible worldwide for the onset of human myiasis. The incidence of myiasis among humans can be correlated to increasing fly populations, poor hygienic conditions and presence of domestic animals in the close vicinity. Other factors responsible for myiasis include neglected open wounds and foul-smelling discharge from natural body openings. Moreover, ignorance plays a key role in its occurrence since people are generally unaware about the actual cause and often correlate the condition to their superstitious beliefs. It is emphasized that the patients should not neglect their wounds and should take proper medical care; otherwise, myiasis may supervene.

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Section: Ophthalmomyiasis Internamentioning

confidence: 85%

Incidence of myiasis among humans—a review

Singh

2015

Parasitol Res

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“…There has been some uncertainty regarding the safety of ivermectin in the presence of ocular symptoms due to the possible risk of local inflammatory reaction [ 13 ]. Ivermectin given in a case of OMI resulted in visual improvement, with no serious side-effects noted [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

Human myiasis caused by the reindeer warble fly, Hypoderma tarandi, case series from Norway, 2011 to 2016

et al. 2017

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Hypoderma tarandi causes myiasis in reindeer and caribou (Rangifer tarandus spp.) in most northern hemisphere regions where these animals live. We report a series of 39 human myiasis cases caused by H. tarandi in Norway from 2011 to 2016. Thirty-two were residents of Finnmark, the northernmost county of Norway, one a visitor to Finnmark, and six lived in other counties of Norway where reindeer live. Clinical manifestations involved migratory dermal swellings of the face and head, enlargement of regional lymph nodes, and periorbital oedema, with or without eosinophilia. Most cases of human myiasis are seen in tropical and subtropical countries, and in tourists returning from such areas. Our findings demonstrate that myiasis caused by H. tarandi is more common than previously thought. Healthcare professionals in regions where there is a likelihood of human infestation with H. tarandi (regions populated by reindeer), or treating returning travellers, should be aware of the condition. All clinicians are advised to obtain a detailed travel history when assessing patients with migratory dermal swellings. On clinical suspicion, ivermectin should be given to prevent larval invasion of the eye (ophthalmomyiasis). Since H. tarandi oviposits on hair, we suggest wearing a hat as a prevention measure.

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“…Ivermectin as medical therapy for ophthalmomyiasis interna has been reported to be effective as therapy and prophylaxis for bot fly infestation of livestock 5 . There is some evidence of benefit in human cases of ophthalmomyiasis as well 6 …”

Section: Discussionmentioning

confidence: 99%

“Pacman” invasion of the retina: Two cases of ophthalmomyiasis interna posterior

Punjabi¹,

Browning²,

Clark³

et al. 2019

American Journal of Ophthalmology Case Reports

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Purpose To discuss two striking cases of ophthalmomyiasis interna posterior, in which the larval stage of a botfly is found in the posterior segment. Observations In the first case, the subretinal maggot is alive and found to be migrating under the retina. The maggot was lasered in the office and killed. In the second case, a dead maggot was discovered in the subretinal space in a child, after it had caused significant subretinal scarring and permanent vision loss. Conclusions and Importance Ophthalmomyiasis is a rare condition that can often be unrecognized and result in permanent vision loss. Early diagnosis and photocoagulation of the larva (if alive) can halt progression of vision loss in these cases.

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Successful Treatment of Ophthalmomyiasis Interna Posterior With Ivermectin

Abstract: Medical treatment with ivermectin can be considered as primary therapeutic modality in ophthalmomyiasis interna posterior.

Cited by 14 publications

References 7 publications

Incidence of myiasis among humans—a review

Incidence of myiasis among humans—a review

Human myiasis caused by the reindeer warble fly, Hypoderma tarandi, case series from Norway, 2011 to 2016

“Pacman” invasion of the retina: Two cases of ophthalmomyiasis interna posterior

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