3 research outputs found
An Unusual Case of Marble Intraocular Foreign Body
This report presents a case of marble intraocular foreign body that developed toxic complications during surgery. The patient is a 25 years old male who presented to the University of Benin Teaching Hospital with a history of trauma to the right eye while cutting marble. He was examined, had an ocular ultrasound scan and subsequently had an extracapsular cataract extraction. His visual acuity in the right eye was light perception. There was an entry point on the cornea, the lens was opaque, there was vitreous haemorrhage and the intraocular foreign body was localized in the posterior part of the posterior segment by ultrasound scan. He had extracapsular cataract extraction. During anterior capsulotomy, the cornea suddenly and rapidly became cloudy with a brownish tinge and the corneal epithelium started desquamating.Marble on its own may not be toxic but the other chemicals including cement, used in the processing of the marble were responsible for this delayed toxicity. Ultrasound scan is valuable in localisation of intraocular foreign bodies
A Comparison Study of Conjunctiva Disorders in Technical and Administrative Sawmill Workers in Nigeria
Background: Workers in the sawmilling industry are at risk of various
ocular hazards as a direct result of the sawmilling processes. The aim
of this study was to determine the pattern of conjunctival disorders
between technical and administrative sawmill workers in Benin, Nigeria.
Methods: A cross-sectional study was performed on sawmill workers in
Benin, Nigeria, between January and May 2009, with the aid of
pre-tested questionnaires. Ocular examination was performed on all
subjects. Data obtained were recorded and analysed using SPSS version
13. Results: A total of 553 sawmill workers were studied, among whom
449 (81.2%) and 104 (18.8%) were technical and administrative workers,
respectively. There were 496 (89.7%) males and 57 (10.3%) females. The
age range was 15–80 years, with a mean of 38.9 years (SD 12.8).
Pingueculum was found in 127 (23%) workers, among whom 122 (27.2%) were
technical workers and 5 (4.8%) were administrative workers. Pterygium
was present in 65 (11.8%) workers, among whom 64 (14.3%) were technical
workers and 1 (1%) was an administrative worker. Seven (1.6%) technical
workers used protective eyewear; 2 (0.4%) wore this protective eyewear
regularly. Conclusion: Technical sawmill workers are at risk of
developing conjunctival disorders, which result from chronic ocular
irritation. This can be prevented by the provision of protective eye
devices in the workplace