PURPOSE To determine the pattern of non-traumatic ocular disorders in industrial technical workers in the Delta state, Nigeria. METHODS A cross-sectional study of the pattern of non-traumatic ocular disorders among industrial technical workers in 3 factories in Ughelli North local Government Area of Delta state, Nigeria was conducted between February, 2002 and May, 2002. In addition to the de...

BACKGROUND Welders have been identified as a high risk group for eye disorders due to their exposure to ultraviolet radiation. OBJECTIVE To determine the prevalence and types of eye diseases amongst welders in Ile-Ife, Osun state. METHODS This is a cross sectional descriptive study of 405 consenting welders. Information on socio-demographic characteristics was obtained using a pre-tested pr...

It was generally observed that welders in Calabar, Nigeria did not always wear their protective goggles during welding. Since chronic exposure to welding light can impair vision this study was done to assess the effect of exposure to welding light on ocular function of welders in Calabar, Nigeria. There were 195 subjects comprising 110 welders (test) and 85 control subjects. Both groups were al...

PURPOSE To evaluate the risk factors for pterygium in the dry, high altitude province of Ilam, Iran. METHODS The study included patients who presented to ophthalmology clinic. The patients were divided into two groups: 210 diagnosed with pterygium or pinguecula (unilateral or bilateral), and 210 healthy controls. Demographic variables, living environment, disease type, disease laterality, fam...

propose: to evaluate patients with renal transplantation for abnormal ocular findings and to determine the association of these findings with pretreatment dialysis duration, immunosuppressive regimen and underlying disease causing renal failure. methods: this cross-sectional study was performed on 150 patients who had undergone kidney transplantation for at least three months and with serum cre...

BACKGROUND The tumor suppressor gene p53 is expressed without apoptosis in the limbal basal stem cells of all pterygia and limbal tumors and most pingueculae from which these growths seem to originate. Oncogenic human papillomaviruses (HPVs) have been found in pterygia and limbal tumors, and HPV and p53 overexpression commonly coexist in oropharyngeal and penile carcinomas. OBJECTIVE To searc...

Pterygia are common ocular surface lesions thought to originate from limbal stem cells altered by chronic UV exposure. Traditionally regarded as a degenerative condition, pterygia also display tumor-like features, such as a propensity to invade normal tissue and high recurrence rates following resection, and may coexist with secondary premalignant lesions. This study was initiated to determine ...

Background/aims—Ultraviolet (UV) irradiation of mammalian cells in culture evokes the transcriptional activation of diVerent proto-oncogenes, among them members of the fos/jun family which are known to play an important role in cell proliferation and diVerentiation. To investigate in vivo UV induced proto-oncogene expression of irradiated ocular cells, the expression of JunB, JunD, and Egr-1 wa...