@article {McBain415, author = {Hayley McBain and Kelly MacKenzie and Joanne Hancox and Daniel G Ezra and Gillian GW Adams and Stanton P Newman}, title = {What do patients with strabismus expect post surgery? The development and validation of a questionnaire}, volume = {100}, number = {3}, pages = {415--419}, year = {2016}, doi = {10.1136/bjophthalmol-2015-307027}, publisher = {BMJ Publishing Group Ltd}, abstract = {Aims To develop and validate a short questionnaire to assess patients{\textquoteright} expectations about outcomes post strabismus surgery.Methods Questionnaire items were extracted from previous literature and reviewed by a multidisciplinary team. A cross-sectional study was then undertaken with 220 adult patients due to undergo strabismus surgery. Participants completed the 17-item questionnaire. Scale structure was explored using principal component analysis (PCA), and the subscales analysed in relation to demographic and clinical characteristics and psychosocial well-being in order to establish validity.Results PCA revealed a 3-factor solution for the Expectations of Strabismus Surgery Questionnaire (ESSQ): (a) intimacy and appearance-related issues, (b) visual functioning, (c) social relationships. This 3-factor solution explained 59.30\% of the overall variance in the ESSQ. Internal consistency, content and nomological and concurrent validity were considered acceptable.Conclusions Patients with strabismus have high expectations about their postsurgical outcomes. This questionnaire provides a useful tool to assess the expectations patients have about their surgery, whether these expectations change over time and how they impact on postsurgical outcomes.}, issn = {0007-1161}, URL = {https://bjo.bmj.com/content/100/3/415}, eprint = {https://bjo.bmj.com/content/100/3/415.full.pdf}, journal = {British Journal of Ophthalmology} }