Can orbital hydatid cyst presents with acute visual loss? case report and literature review

Hydatid cyst [HC] disease is zoonotic disease caused by larvae of Echinococcus granulosus which is commonly affecting liver and lung or any organ or tissue in our body. central nervous system [CNS] can be involved at any place with or without brain involvement including skull, orbit, vertebral column and spinal cord. Orbital infestation is constituting less than 1% of all hydatid disease cases. There are few reported cases of orbital HC in the literatures that presented with acute visual loss and proptosis. In this article we are reporting a case of intramuscular orbital HC that presented with sever and acute visual loss with proptosis following trivial road traffic accident.

Blindness due to acanthamoeba: first case report from Sudan

Acanthamoeba is a free-living protozoan widely distributed in soil, water, and air. It can cause corneal infection [keratitis] in man, and may lead to blindness of the affected eye in 15% of untreated cases. The main risk factors are eye trauma and contact lens wearing. Early presentation of Acanthamoeba keratitis patients usually includes ocular pain, photophobia, and a unilateral red eye. The story of a female Sudanese housewife who suffered a blind left eye due to Acanthamoeba is described in this report

Onchocerciasis in Malawi. 1. Prevalence; intensity and geographical distribution of Onchocerca volvulus infection in the Thyolo highlands

Skin snips from 23;373 persons living in the Thyolo (formerly Cholo) highlands focus of southern Malawi showed infection with Onchocerca volvulus to be unevenly distributed within the highland area. In the centre of the focus most adults were infected; though intensity of infection was light; not exceeding a geometric mean of 8 microfilariae per mg of skin. It was estimated that 327;000 persons live in areas where prevalence of infection exceeds 10 percent and; of these; 94;500 persons over the age of one year are infected with O. volvulus. There is a significant relationship between infection with O. volvulus and bilateral blindness in the Thyolo focus; although the number of persons blind from onchocerciasis is probably less than 300

Trauma ocular por Himenópteros: aspectos clínicos e histopatológicos / Ocular trauma by Himenopteros: clinical and hystopathological aspects

Säo apresentados 3 casos clínicos de trauma ocular por insetos da ordem dos Himenópteros. Tais acidentes säo pouco frequentes em grandes cidades. Os insetos inoculam nos tecidos oculares misturas de substâncias altamente tóxicas, como aminas, peptídeos, enzimas. Todos os casos apresentavam alteraçöes anatômicas e funcionais graves do segmento anterior do olho e foram submetidos a tratamento cirúrgico, tendo o exame anátomo-patológico revelado intensa destruiçäo tecidual da córnea e cristalino. Discutem-se ainda as açöes dos componentes do veneno sobre os tecidos humanos, concluindo-se que o trauma ocular por insetos Himenópteros pode determinar uma baixa acentuada de acuidade visual ou mesmo cegueira definitiva