Contact lenses are used as a method of correcting refractive errors. However, their use can be associated with periods of discomfort as well as occasional pathophysiological reactions. This inaugural edition of Optometry Rounds presents the latest findings to allow Optometrists to improve the experience of their patients who wear contact lenses, as well as to share knowledge with respect to con...

Given increasing awareness of the link between diet and health, many patients are concerned that dietary factors may trigger dermatitis. Research has found that dietary factors can indeed exacerbate atopic dermatitis or cause dermatitis due to systemic contact dermatitis. In atopic dermatitis, dietary factors are more likely to cause an exacerbation among infants or children with moderate-to-se...

in medicine, patent blue violet (pbv) is utilized for staining lymphatic vessels in sentinel lymph node (sln) surgery. moreover, pbv (also called e131 ) is used as food additive. we report on a 51-year-old non-atopic female with early breast cancer, who was scheduled for sln excision and experienced an intra-operative anaphylactic reaction. in diagnostics the skin prick test (spt) was positive ...

© 2016 Joule Inc. or its licensors CMAJ 1 A45-year-old otherwise healthy woman presented with a five-day history of a pruritic eruption on her left forearm that developed several minutes after accidentally brushing against a coral while snorkelling in the Mediterranean Sea. She reported initially feeling a stinging and burning sensation in her forearm, which was followed by the development of a...

A 29-year-old female, an aesthetician, developed occupational allergic contact dermatitis caused by extracts of crude drugs. The results of 48-hour closed patch testing showed positive reactions to the moisturizing cream and oil that she used in her work. This cream and oil included Scutellraria Baicalensis, mugwort (Artemisia vulgaris), and Artemisia capillaris,Gardenia. The results of patch t...

The skin is the most frequently affected target organ in allergy or intolerance of food and food additives. The most common manifestation is acute urticaria (with or without angioedema), accounting for 40-60% of patients with IgE-mediated food allergy, whereas food additives rather aggravate chronic urticaria (intolerance provocation). The role of food allergy in the pathogenesis of atopic derm...

hypersensitivity reactions to natural rubber latex have increased recently, especially among people with high exposure to latex allergens. hypersensitivity reactions to latex are related to many conditions like occupational asthma. our study was performed to determine the prevalence of hypersensitivity to natural rubber latex and potential food cross reactions in operation room personnel in shi...

1. The dogfish responds to certain contact stimuli by definite stereotropic reactions. These reactions can be positive or negative. 2. The sense of the stereotropic response depends on the strength of the stimulus; a "weak" stimulus, produces a positive and a "strong" stimulus, a negative response. 3. The strength of stimulus necessary to cause a reversal of the reaction depends in part on the ...

In spite of popular beliefs, the relationship between eczema and food allergy still puzzles researchers and clinicians, which in part is due to the variety of mechanisms involved in various types of allergy. One has to realize the differences between hypersensitivity reactions to food proteins (allergens capable of initiating immediate hypersensitivity or immune complex reactions) and low-molec...

Passive transfer of tritiated thymidine-labeled lymphoid cells sensitized to the simple chemical DNFB into homologous guinea pigs resulted in positive contact skin reactions 24 hours after skin testing with DNFB. Labeled sensitized cells were found to accumulate at these sites, whereas, labeled nonsensitized lymphoid cells did not appear non-specifically in contact skin reaction sites. The labe...