Contact tracing carried out at this clinic was analysed as part of measures for control of sexually transmitted disease (STD). Results showed that 50% of 156 contacts could not be traced at all for various reasons, and that 47% of the contacts were brought in through persuasion by index patients who had been counselled at the clinic. Only four contacts were traced, and two of these attended the...

PURPOSE Deprivation of oxygen to the ocular surface during contact lens wear has been implicated in the alteration of sensory function. This study investigates whether increasing oxygen availability through discontinuation of contact lens wear or transfer into highly oxygen transmissible (high Dk/t) lenses leads to a change in corneal or conjunctival sensitivity. METHODS Twenty-seven long-ter...

We discuss allergic contact dermatitis to the iPad to highlight a potential source of nickel exposure in children.

Cosmetics are an important cause of allergic contact dermatitis (ACD). Fragrances and preservatives are the two most clinically relevant allergens found in cosmetic products. Patch testing remains the gold standard for identification of causative allergens. Common cosmetic allergens are reviewed. Practical methods of allergen avoidance are also discussed.

PURPOSE To understand the potential barriers, motivators and enablers in dispensing multifocal contact lenses (MFCL). METHOD Two focus group discussions were conducted to design questionnaires regarding the prescribing habits for multifocal contact lenses (MFCL). Questions on potential barriers and motivators were included. The questionnaires were distributed among 133 eye care practitioners ...

To evaluate the role of electrophilicity in the induction of allergic contact dermatitis (ACD) in humans, we compared the structure-activity relationship (SAR) model of ACD with those of electrophilic and nonelectrophilic subsets of chemicals in the ACD database. For these analyses, electrophilicity was defined as the potential of a chemical to induce mutations in Salmonella. It was found that ...