Trachoma and Herbert’s pits

Coccygeal pits.

BACKGROUND Congenital dermal sinuses represent cutaneous depressions or tracts that are lined by stratified squamous epithelium. They communicate between the surface of the skin and deeper structures and may occur anywhere along the craniospinal axis. These sinuses are thought to result from abnormal separation of the cutaneous and neural ectoderm between the third and fifth week of intrauterin...

Trachoma

Trachoma.

Trachoma is the most common infectious cause of blindness. It is caused by ocular serovars of Chlamydia trachomatis. Transmission is favoured in poor communities, where crowding is common and access to water and sanitation inadequate. Repeated reinfection over many years causes dense scarring of the upper eyelid. The resultant inversion of the lashes abrades the eyeball, and the abrasion leads ...

Trachoma and fly control.

Everybody is aware of the annoyance and irritation caused by flies as they buzz around food and crawl over skin. In trachoma endemic areas, flies are frequently seen clustering around the face and eyes of children where they feed on mucus and discharge (Fig.1). This association of flies with the faces of infected children has not gone unnoticed, and they have been considered as vectors of trach...

Trachoma and Conjunctivitis

Imtiaz A. Chaudhry1, Yonca O. Arat2 and Waleed Al-Rashed3 1Senior Academic Consultant, Ophthalmic Plastic Reconstructive Surgeon Oculoplastic and Orbit Division, King Khaled Eye Specialist Hospital, Riyadh 2Department of Ophthalmology, University of Wisconsin School of Medicine, Madison, Wisconsin 3Senior Consultant Ophthalmologist, Division of Anterior Segment King Khaled Eye Specialist Hospit...