Now showing items 51-54 of 54
The oxygen performance of a contact lens on the human eye.
There is considerable evidence to indicate that most gas permeable contact lenses do not transmit sufficient oxygen to supply all the corneal oxygen requirement. This problem is further exacerbated by non-valid methods of ...
The incidence and distribution of ametropia in blacks in Umlazi.
Age, sex, race, heredity, environment and nutrition have been found to influence ametropia. In this study, the distribution of refractive errors has been investigated in relation to age, sex, race, education and near ...
Isoenzyme polymorphism in entamoeba histolytica : an epidemiological survey in a rural South African population.
Isoenzyme characterisation of Entamoeba histolytica into pathogenic and non-pathogenic zymodemes substantiated previously held views that this parasite con5titutes two distinct strains or even sub-species that ...
Endotoxaemia in intestinal dysfunction in experimental animals : intestinal ischaemia and hyperthermia.
Endotoxins or lipopolysaccharides (LPS), highly toxic component of the outer membrane of gram-negative bacteria, are normally present in the mammalian gut lumen.In this thesis, I investigated, in laboratory animals, whether ...