Focusing on the Place Model for Optometrists

Background: The Place Model was developed in order to conceptualize the various roles and career pathways of the teaching profession. It can be used to evaluate long-term professional career trajectories and to encourage the student-teacher to visualize their future personal and professional development. Methods: In the present study, the Place Model has been applied to the Optometric profession. The four categories of the place model have been discussed in terms of Optometry and a survey of undergraduate Optometrists highlights the perception of the model amongst pre-qualified professionals. Results: The majority of participants placed qualified optometrists in the Professional area on the Place Model (87%, n = 88) with the remainder placing qualified optometrists in the De-Professional area on the Place Model (13%, n = 13). There was no statistically significant difference between responses from male and female participants (t-test, p = 0.38). There was also no statistically significant difference between responses from participants in year 1, 2 or 3 of their undergraduate program (one-way analysis of variance [ANOVA], p = 0.10). Conclusion: The Place Model may be an opportunity to discuss with Optometry students their future career pathways and to ensure that we maintain a highly skilled and caring profession that provides high quality eyecare for the public

Chronic HIV-1 Infection Frequently Fails to Protect against Superinfection

Reports of HIV-1 superinfection (re-infection) have demonstrated that the immune response generated against one strain of HIV-1 does not always protect against other strains. However, studies to determine the incidence of HIV-1 superinfection have yielded conflicting results. Furthermore, few studies have attempted to identify superinfection cases occurring more than a year after initial infection, a time when HIV-1-specific immune responses would be most likely to have developed. We screened a cohort of high-risk Kenyan women for HIV-1 superinfection by comparing partial gag and envelope sequences over a 5-y period beginning at primary infection. Among 36 individuals, we detected seven cases of superinfection, including cases in which both viruses belonged to the same HIV-1 subtype, subtype A. In five of these cases, the superinfecting strain was detected in only one of the two genome regions examined, suggesting that recombination frequently occurs following HIV-1 superinfection. In addition, we found that superinfection occurred throughout the course of the first infection: during acute infection in two cases, between 1–2 y after infection in three cases, and as late as 5 y after infection in two cases. Our results indicate that superinfection commonly occurs after the immune response against the initial infection has had time to develop and mature. Implications from HIV-1 superinfection cases, in which natural re-exposure leads to re-infection, will need to be considered in developing strategies for eliciting protective immunity to HIV-1

Refractive and corneal astigmatism in white school children in Northern Ireland

To study the prevalence of and relation between refractive and corneal astigmatism in white school children in Northern Ireland and to describe the association between refractive astigmatism and refractive error

Refractive error and visual impairment in school children in Northern Ireland

To describe the prevalence of refractive error (myopia and hyperopia) and visual impairment in a representative sample of white school children