Human ophthalmomyiasis externa caused by the sheep botfly Oestrus ovis:a case report from Karachi,Pakistan

作     者：Naima Fasih Kanza Noor Qaiser Syeda Aisha Bokhari Bushra Jamil Mohammad Asim Beg 

作者机构：Department of Pathology and MicrobiologyAga Khan University HospitalKarachiPakistan Medical studentAga Khan University HospitalKarachiPakistan Department of OphthalmologyBismillah Taqi HospitalKarachiPakistan Department of MedicineAga Khan University HospitalKarachiPakistan 

出 版 物：《Asian Pacific Journal of Tropical Biomedicine》 (亚太热带生物医学杂志（英文版）)

年 卷 期：2014年第4卷第10期

页      面：835-837页

学科分类：0710[理学-生物学] 0831[工学-生物医学工程（可授工学、理学、医学学位）] 1001[医学-基础医学(可授医学、理学学位)] 100103[医学-病原生物学] 10[医学] 

主　　题：Ophthalmomyiasis externa Oestrus ovis Pakistan Eye infections 

摘      要：Ocular myiasis due to Oestrus ovis larvae infestation is an eye infection in humans.A case of ophthalmomyiasis externa in a young male from Karachi,Pakistan in winter(December 2012),without history of close proximity to domestic animals or visit to any rural area was reported.The condition is self-limiting and the disease is confined to the conjunctiva.The eye was locally anesthetized and washed with 5%povidine iodine solution.A total number of 27 first instar larvae of Oestrus ovis were removed with fine forceps.The patient received 0.5%moxifloxacin and diclofenac eye drops for one week.His eye was examined after one day,one week and one month and the recovery status was favorable.The present case raise the awareness among ophthalmologists regarding larval conjunctivitis as one of the causes of conjunctivitis and it can occur throughout the year in any season including winter.Moreover,it can occurr in any area either rural or urban with or without close proximity to domestic animals especially in subtropical regions with high parasitic burden.